Database Develop

ActiveSync: device not detected

I cannot get ActiveSync to detect my phone.
I get the XP message "USB Device Not Recognized" when I plug in the phone.
I have checked my USB drivers. They are more up to date (2004) than the ones listed on the Microsoft support page listed in the ActiveSync readme.doc
I am running ActiveSync 4.5 on a Windows XP laptop
Windows Mobile 6 CE OS 5.2.1620 (Build 18125.0.4.2)
on an Orange Tytn II (ok, I will flash the rom once I have a working ActiveSync!)
I have tried switching off the firewall on the laptop - no luck.
Changing the in "Enable advanced network functionality" through the 'USB to PC' connections makes no difference.
In the Get Connected Window USB is listed as having status "USB is available" after clicking Next on Checking COM ports (it takes a while).
I have uninstalled and reinstalled ActiveSync 4.5 (obtained from both the CD and the Microsoft web site).
I have done the usual cycle of switching everything off and rebooting (several times).
I have tried all four of the USB ports on my ASUS A6000.
New suggestions for things to try most welcome.

I did have the same problem myself when I first got mine. I also tried turning firewalls off etc. The only method that seemed to regularly work was to reset the kaiser and ultimately a hard reset

i had a similar problem and i found it was because i still had the nokia phone sync software on my pc too .. removing it sorted the problem

Soft reset the device, reboot the pc.
If USB syncing doesnt work, try bluetooth.

Works for approx 30 secs after reboot
I think I have a faulty phone.
ActiveSync works for about 30 seconds after a reboot, as does gps tracking, and then the connection is lost (and gps fixes on the last tracked location). I have tried soft/hard resets, all to no avail.
Unfortunately I bought the phone in London and I will have to wait until I am next in London to take it back to the Orange shop for a replacement :-(

I am having the same issue but I cant get activesync to work at all

I could recognise the kaiser on one PC but not on another, messed around and go it working then it stoped , all along it was mt Firewall, disabled the fire wall never had any more problems with activesync. that was my issue might be something for you to look into

derek-farn said:
I think I have a faulty phone.
ActiveSync works for about 30 seconds after a reboot, as does gps tracking, and then the connection is lost (and gps fixes on the last tracked location). I have tried soft/hard resets, all to no avail.
Unfortunately I bought the phone in London and I will have to wait until I am next in London to take it back to the Orange shop for a replacement :-(
Click to expand...
Click to collapse
I think your phone is ok. ActiveSync always gives all kind of problems.
I sync my kaiser on my desktop, my laptop and at work. For some reason, my desktop had exactly the same problem than yours. I tried everything!
Finally I found something that made it work much better. Go to Settings->Connections->USB to PC and uncheck the option 'Enable advanced network functionality'
After that, I still get some random disconnects, but only happens like every 3 or 4 days.
Hope it helps.

I had this same problem (device not being recognised) but fixed it by connecting the USB directly to the PC not via a USB hub. This makes me think that the TyTN II requires the maximum current from its USB connector to work; a hub reduces the available power; some PC connections may not have enough and this could account for the problems some users are experiencing perhaps??

jmaynard said:
I had this same problem (device not being recognised) but fixed it by connecting the USB directly to the PC not via a USB hub. This makes me think that the TyTN II requires the maximum current from its USB connector to work; a hub reduces the available power; some PC connections may not have enough and this could account for the problems some users are experiencing perhaps??
Click to expand...
Click to collapse
i tried unchecki the box for usb-to pc and i disabled the firewall and still had no luck. ill y a different computer and report back

jaygriggs said:
i tried unchecki the box for usb-to pc and i disabled the firewall and still had no luck. ill y a different computer and report back
Click to expand...
Click to collapse
Have you fixed the problem yet? I'm having the same problem and tried everything suggested here.
I tried it on 2 computers with Vista. First it worked, but since my laptop with XP isn't reacting on my Kaiser anymore, Vista can't find the Kaiser too. Only a friend of mine, who has a Trinity, can use activesync. Is flashing a good fix?

Found solution to my problem
I have finally found a solution that works for me (having tried everything that everybody has suggested, plus more).
I found that if you have a password enabled (ie, something that has to be typed when the phone is first switched on; available via Settings -> Personal -> Lock) and a firewall running, then an ActiveSync connection fails for no obvious reason.
Disable the firewall and your phone will prompt you for the password after which ActiveSync works.
Disable the password and there is no prompt with/without firewall and ActiveSync works.
In my case I also had to untick the 'enable advanced network functionality'.

i am starting to thing there maybe a big problems here , i have the same thing and nothing has helped,,diffant pc`s i have hard reset the phone, unticked Enable advanced network. and still nothing.

The problem that I found was the notifications queue for ActiveSync on my phone had been corrupted.
I downloaded memmaid and used the "recreate Activesync" under the database menu.
Unplug from the USB, run MemMaid and on the "JumpTo" softkey go to "Databases\Notification queue". Tap on the arrow to the right of "Add..." and tap "Recreate ActiveSync". Soft reset your phone wait 60 seconds after everything is loaded and plug the USB cable in. You should be good to go.
This is a known problem with ActiveSync and happens on a plethora of WMD's, not just the Kaiser or HTC. I used to have the same problem on an iPaq PPC. Microsoft's official answer to this was it was the OEM's fault for not following strict rules on implementing properly coded USB drivers.

well BulldogXTRM you got my hopes up there,,,,
but it did not work for me,

lodger said:
well BulldogXTRM you got my hopes up there,,,,
but it did not work for me,
Click to expand...
Click to collapse
Sorry partner, I guess it's not always the same problem.

My computer dont detect my HTC TyTn II

After a hard reset on the TyTn my computer is no longer detecting it when I connect the phone to USB cable. The computer makes a sound when I connect it, but Windows Mobile Device Centrer say that TyTn II is not connected, and it does not show up in My Computer eather.
I've tryed to delete the partnership and reconnect the phone, but nothing happens.
Can anyone help me please! Now I cant install any of my programs og transfer files between the computer and the pocket pc/phone.

Try this:
tap Start > Settings > Connections.
tap USB to computer.
Uncheck the Enable advanced network functionality box

Try this:
tap Start > Settings > Connections.
tap USB to computer.
Uncheck the Enable advanced network functionality box

I uninstalled Windows Mobile Device Centrer and then tryed the tip you described here. At first it looked ok, my computer detected the device and installed the drivers and reinstalled Windows Mobile Device Centrer.
But my device is still not showing up in Windows Mobile Device Centrer or My Computer

Check your personal firewall settings and open the ports MS asks you to at the Windows Mobile home/support page...

Go into task manager & see if Activesync is running. I have the same problem with my tilt & if I kill activesync then reattach it takes a moment the first time, but then it works.

Make sure you are running the latest version of WMDC. I absolutely could not get WMDC to work with my HTC Wizard for months. After MS came out with an updated version of WMDC (around June, I think) it started working fine.
If you absolutely can't get it to work, consider using emoze for over the air syncing of cal, contacts, mail, etc. (or an on-line exchange account.) I had to do that for a few months until I got it to work. Emoze has the advantage of being free. Unfortunately, neither will allow file syncronization, tho.

There is no activesync running.
And everything was working just fine before my device went "mental" and I had to hard reset. So before the hard reset I could use WMDC on this computer, transfer files and run active sync. But now I cant.
I also got an online exchange account so I can sync calender and contacts. But I want to be albe to transfer files to my computer and install new software.
My WMDC version is: 6.1.6965

Some more info about the computer may help. For instance, I take it from your usage fo Windows Mobile Device Center that you are running Vista. In any case, since the problem is with the computer and not the Kaiser, I would see if the manufacturer would provide some support.

Yes, im running Vista and I buildt the PC my self.
But Im not sure its realy the PC that is the problem, because I made the changes (Hard Reset) to the device and thats what caused the problem.
Anyway, I was hoping for some way to debug/troubleshoot this problem.

I am having the same problem. I sync to any one of 8 computers at work and one at home. Work runs XP PRO and Home VISTA Ultimate x64 all worked fine untill this week. I have not made any changes since the last sync, the computers know it's hooked up due to activesync opening and trying to connect when I plug in via USB. But it never connects. I want to flash to Dutty's newest ROM but can't connect. I sync all contacts and e-mail wirelessly but need the computer to flash (I do not have a sd card yet) Any idead would be great! I have tried the ideas listed above but no joy. I have not hard reset the device as of yet ( I need some things off of it first)
Steve

BUMP
I really need help with this!!! I'm pulling my hair out!

Did any of you that had this problem find a solution? I have the exact same issue except a hard reset will fix it for a while, and then the problem will reoccur a few months later. No software has been added during the time frame. Very annoying.

i've got just the same problem! plaese help us!

i'm not able to install wmdc. it says it is for vista only. i'm currently on winxp. tried to install it via the disc provided..

lipanz said:
i'm not able to install wmdc. it says it is for vista only. i'm currently on winxp. tried to install it via the disc provided..
Click to expand...
Click to collapse
omg!
try activesync for XP. It came with the phone or you can download it from.
http://www.microsoft.com/windowsmobile/en-us/help/synchronize/device-synch.mspx

Activesync connectivity! GRRRR!

All of a sudden my activesync has stopped working. I can't connect via USB or bluetooth. It worked fine in the past! Now, if I plug in my Tilt with the USB it gives me an error message saying Activesync cannot connect, and gives me the option of troubleshooting. Going through the troubleshooting process yeilds no diagnosis; everything appears to be working ok.
If I try and sync with bluetooth, I see the Tilt connect, and then disconnect a few seconds later. No error messages, no nothing.
My Tilt's activesync window displays the message:
"To synchronize your device with a desktop computer, install the synchronization software from the Getting Started Disc included with your device on your PC." It once displayed info such as my last sync, etc.
I've tried reinstalling activesync, and disabled my firewalls.
Anybody else have this issue, or know of a fix?

ActiveSync
Moved message

Needs a little bump here

mystic_nacho said:
All of a sudden my activesync has stopped working. I can't connect via USB or bluetooth. It worked fine in the past! Now, if I plug in my Tilt with the USB it gives me an error message saying Activesync cannot connect, and gives me the option of troubleshooting. Going through the troubleshooting process yeilds no diagnosis; everything appears to be working ok.
If I try and sync with bluetooth, I see the Tilt connect, and then disconnect a few seconds later. No error messages, no nothing.
My Tilt's activesync window displays the message:
"To synchronize your device with a desktop computer, install the synchronization software from the Getting Started Disc included with your device on your PC." It once displayed info such as my last sync, etc.
I've tried reinstalling activesync, and disabled my firewalls.
Anybody else have this issue, or know of a fix?
Click to expand...
Click to collapse
Sounds like something has changed on your PC, perhaps via a Windows Update. Have you checked to see if your firewall is the culprit?
You may also want to do a clean uninstall and then reinstall Activeswync 4.5 and create a new partnership with your device.
You can also try restoring your PC back to a date that you were able to use Activesync....

This happens to me rather frequently (I am looking for an ActiveSync replacement because of it).
However, I fix it by either soft reset of the device, PC, or sometimes both. If that doesn't work, you need to delete the partnership with the PC and reconnect.
RK

...any solutions yet?
I just got my kaiser 3 weeks ago after using a wizard for almost 2 years. what a great phone the wizard was... I kinda miss using it! Anyhow, i just experienced the sudden activesync failure. I now get random activesync openings on my kaiser with the message "To synchronize your device with a desktop computer... yada yada".
I have already setup a bogus server and set the scheduling to manual.
I have compared the wizard registry to the kaiser registry by searching every instance of 'activesync' and couldnt find anything.
I also deleted all instances of activesync in the notification queue and had memmaid rebuild it.
The device will connect to activesync but pops an error message that it could not synchronize and goes into a guest account setting. So for now I am having to use pimbackup to backup my data on the kaiser, bluetooth it to my wizard, then sync the wizard with my laptop to get the data into outlook. I am considering a hard reset but kind of want to wait until the at&t 6.1 official Rom comes out. I am also considering Chapura Pocketmirror Professional which worked well on an old Ipaq i had (wm2k3) that had sync issues. I also want to get this resolved so i can practice loading a new rom on the wizard. So....
Anyone have a fix yet? I hope so!!!
Oh, and for reference (to answer questions from other threads), my kaiser battery drains 4 to 5 times faster than the wizard in side by side use, and the kaiser definitely does not have a transflective screen while the wizard does... bummer. but the kaiser is tremednously faster!

1. Disconnect the device from your computer.
2. Try going to your device and select:
start->settings->connections->USB to PC.
3. Uncheck "enable advanced network functionality"
4. Reconnect the device.

Active Sync....
Hi,
You can try "PocketMirror® Professional 2.2.4 for Windows Mobile", its a pretty good syncronization tool, but it costs a few bucks...
I've been using the trial version of PocketMirror and must say its pretty good with my TYTN 2.
Regs,
The Reaper.

... my thoughts exactly
yeah, i tried the usb to pc option as well. even downloaded a cab from another thread that allowed me to choose rndis or usb mode. neither worked. I will probably use pocketmirror pro as well...

Hi, I just flashed a new ROM on my Orbit that works brilliantly, no issues at all, apart from the fact that the computer now doesn't see the device at all. Not even the blo-blong sound when you connect any USB device. The only thing I get connecting the cable is charging the battery. And if I start Active Sync on my Orbit I get the same message as mystic_nacho:
"To synchronize your device with a desktop computer, install the synchronization software from the Getting Started Disc included with your device on your PC"
I just tried an hard reset to try to fix the issue - no success..
Before flashing everything was fine..
Btw, my wife Diamond doesn't connect either, and it never did it: something related to the TouchFlo thing?
Any idea?
The ROM I flashed is
gullums TouchFlo2D beta 4

update
I found the Diamond 'Getting started disc' and installed the Windows Mobile resources tool...
The disc I have from the Orbit box is for Windows Mobile 5, I guess it's not worth to find it out and try...
Nothing changed, anyway.

update 2
Yesterday night out of the blue - while the Orbit was still connected to the pc - ActiveSync started to work... F. knows....

i had the same problem - sync was working fine and then stopped. what worked for me was to go to USB to PC under settings and uncheck "enable faster data syncronization".

hi,
i also had sync. problems in the past.
searched for months.. since i figured out that some registry entries on my PC where missing!
imported the mayor setting from my brothers PC and TADAAAAAA. problem solved.
search my threads and maybe you 've luck with my soloution!

mystic_nacho said:
All of a sudden my activesync has stopped working. I can't connect via USB or bluetooth. It worked fine in the past! Now, if I plug in my Tilt with the USB it gives me an error message saying Activesync cannot connect, and gives me the option of troubleshooting. Going through the troubleshooting process yeilds no diagnosis; everything appears to be working ok.
If I try and sync with bluetooth, I see the Tilt connect, and then disconnect a few seconds later. No error messages, no nothing.
My Tilt's activesync window displays the message:
"To synchronize your device with a desktop computer, install the synchronization software from the Getting Started Disc included with your device on your PC." It once displayed info such as my last sync, etc.
I've tried reinstalling activesync, and disabled my firewalls.
Anybody else have this issue, or know of a fix?
Click to expand...
Click to collapse
Have you recently used a memory cleaning Application like memmaid, Clear Temp, or SKTools? You might have cleaned out some important notification files, like repllog,exe that is used for activesync.
I had the same thing happen to me when I first used these cleaners. I had to do a hard reset on the phone to make it work again found out about the remedies listed below after the reset.
I have heard others were successful repairing these notification Queue's with MemMaid. You can hold your stylus on the repllog,exe notification, and a popup up will appear, asking you to Recreate ActiveSync, or rebuild notification Queue. I don't know if this feature is available in Clear Temp, or SK tools.
I've also heard of restoring activesync by unchecking all of the folders, syncing, and then adding each folder back to the list, one by one, until all is restored.

I too have just developed the same problem.
I have 2 TYTN II' one will sync fine the other wont.
It all went horribly wrong after I tried to install Wisbar and an Ipod theme, after I uninstalled it, cos it didn't work I found I could no longer sync with USB to PC and the sync option is greyed out on my phone. The phone will charge with some of my usb cables, but now even seems fussy about which cable will charge and some now won't.
I am given to wondering whether the usb connection on my Phone is the problem...everything else seems to be working fine.
I have even installed different ROMS via the memory card still the problem persists.
I would love someone to come up with a fix
**UPDATE**
Well I now have got it working, in my case I was right, the usb connection on the phone was to blame. I took it to a mobile repair shop, I told the guy that I thought it was faulty he took one look at it and said that I had a bent pin, he got a little tool out and teased it back into position, sure enough when I got home it worked fine so now I am able to sync again. Not sure how long it will last though.
**Update 2**
Failed again, at least I know what's wrong now.

USB Issue.

Hello there,
I've been searching around the internet now for about 3 hours to no avail, I have even resorted to emailing HTC for help. Thats how desperate I am.
I have a MDA Vario III (HTC TYTN 2) that has worked flawlessly for a long time (since christmas) but has suddenly stopped communicating with Activesync.
Im not bothered about syncing contacts etc, all i want to do is use the file browser to download and upload photos etc.
I have tried all the suggestions i have found so far (enabling adanced network functionality, disabling it, reinstalling Activesync etc.) to no working answer.
Can anyone help me?
raty

Not sure if you tried this or not. Delete your existing partnership and then reconnect it. Good luck. Activesync sux.

Hey,
I've deleted the partnerships off my vario3, and completly reinstalled activesync. Still didnt work.
Ive taken the phone into the T-mobile shop i bought it from, they seem a little too keen to send it off for repairs, maybe this is turning into more of a regular thing that i thought?
Kept onto the phone just for now, I wnt to try and fix it before i send it off.

Uh... why send it off if you fix it?

read through this thread and look at post #10 and see if your computer is detecting the device at all..
also try removing your simcard and microSD card and connect your device to your pc in bootloader mode and see if it says USB on the bottom.

ratykat said:
Hello there,
I've been searching around the internet now for about 3 hours to no avail, I have even resorted to emailing HTC for help. Thats how desperate I am.
I have a MDA Vario III (HTC TYTN 2) that has worked flawlessly for a long time (since christmas) but has suddenly stopped communicating with Activesync.
Click to expand...
Click to collapse
It's probably the Notification queues have lost their active sync bits
use Pocket IE or Opera (mobile) to download and install something like MemMaid or SKTools
you can then add the Active Sync components back into the notification queues, and then rebuild them
Once done you should be able to sync etc

notification queues! What is that?
First I ever heard of that. I am having active sync issues as well and I have tried everything in this post.
Nothing works, it connected a few nights ago and it all of a sudden stayed connected all night. I am Back to having problems again.
Does anyone know if avast will hurt active sync?

here is your answer...
http://forum.xda-developers.com/showthread.php?t=362679
read thorugh EVERY LINK and you should be good

ive read through those links and none of them have a fix for me.
The computer recognises my phone, in device manager it comes up under Windows CE USB Devices as HTC USB Sync.
i shall try the bootloader idea and report back.
@Kimtyson- if i fix it i wont be sending it off, that would be obsurd
@pjwilkin- i have never come across that before while reading about the titan, fancy sharing some knowledge?
Just got my phone into bootloader (thanks wiki) and when the usb cable is connected it says USB and the computer starts to install drivers etc.

***bump***
sorry thats not proper foru etiquet but im desperate for som answers

Some further things to try
Can you connect via Activesync using Bluetooth? What about on other PCs and on other USB ports on your PC? What happens if you delete that HTC USB Sync listing in device manager, unplug the phone, reboot the PC and then reinstall Activesync 4.5 (I use the CDROM the phone came with the phone for that)? See if you can get the phone shop to plug it into one of their PCs with Activesync or WMDC.If it's showing up in your PCs device manager then it's likely some sort of problem/configuration issue with your desktop PC it's connecting to - not a problem with the phone itself.

this has happened to me ..
i vote for changing usb ports..
you probly already did so..
please post when you fix it..

ratykat said:
The computer recognises my phone, in device manager it comes up under Windows CE USB Devices as HTC USB Sync.
Click to expand...
Click to collapse
this cancels out any hardware problems... so do as the previous posts mentioned, its all good advice.

im assuming that all activesync services etc load up ?

New Xperia will not connect with Vista

Hi,
I am getting a bit frustrated over this.
When I connect my X1 to my Vista x86 nothing happens (well the USB task tray icon show for about a second and vanishes again).
When I disable the "advanced option" in the USB/PC connection settings in the X1 I at least get a USB connection with something identified as "PocketPC USB Sync".
Any idea why this is happening and how I can get a real connection with the win mobile device center?
Thanks for helping me out!
Cheers,
Tillman

maybe give this a try:
http://modernnomads.info/wiki/index.php?page=Windows+Mobile+Device+Center+Troubleshooting
I've once had the issues of not able to connect my Windows Mobile device with vista too, and it can get very annoying.. good luck with it.

You might want to try and disable the firewall and then connect the device. I had this problem with Sygate Personal Firewall (sygate was bought by symantec and personal firewall is now terminated and no longer available)

Thanks for the quick response guys!
I already tried disabling the firewall (nod32) but that did not help.
Also checked all services - everything is peachy in that department.
But still - no connection.
When I switch back to "legacy mode" (disabling the advanced option in usb/pc settings on the device) then the device will tell me that I need to install active sync 4.5 or higher and wmdc still does not connect.
This is really strange...and annoying and the same time.
Any more ideas or any way for me to debug what's going on?
Thanks for you help!

Have you intalled "Windows Mobile Device Center 6.1" on your Vista-PC?

The MobileDeviceCenter should be standard without the need to install...
At my Vista Home the X1 had no problems to connect.
Open the Mobile Device Center and delete all old connections of other PPC. Then start your PC again, Softreset your X1 and try again. This should help. I had the problems too, when first connecting, because he didn't liked my G900-connection which was first
After this I too could install my G900 again and no problems since yet (2 weeks).

pf said:
The MobileDeviceCenter should be standard without the need to install...
At my Vista Home the X1 had no problems to connect.
Open the Mobile Device Center and delete all old connections of other PPC. Then start your PC again, Softreset your X1 and try again. This should help. I had the problems too, when first connecting, because he didn't liked my G900-connection which was first
After this I too could install my G900 again and no problems since yet (2 weeks).
Click to expand...
Click to collapse
Well sometimes the Mobile Device center could stuff up or not work due to some issues such as installation of Mobile Device Center 6.1 went wrong. I have experienced that I think I didn't follow the procedures correctly and things just wouldn't work. Eventually I had to do some uninstall and reinstall many times to finally get it working.

When I first plugged mine it it installed some drivers but didn't show up in the Mobile Device Center; unplugging and replugging in caused it to work...did you change settings in between plugging in for the second time?

What I have tried so far (and nothing worked):
Uninstall / reinstall WMDC
Uninstall / reinstall Win Mobile Remote Adapter (yes, this does show up once I am connected with "advanced" USB mode)
Uninstall / reinstall "PocketPC USB Sync" (shows when X1 is set to legacy USB mode)
When in "advanced" mode I can also see a new LAN connection showing up in network overview.
The same X1 on a different Vista 32bit right next to this one will connect just fine. So it's definitely about a driver or config thing with this Vista.
This is driving me...well you know what.

btw, you did try restarting your comp when performing some of those steps, and you did try different USB ports right?

I know that you had to ask.
Yes I did. I have rebooted the system several times in between all those reinstallation tasks.
By the way. When I am in USB legacy mode and reconnect the USB cable then the X1 will show a messagebox telling me that it's connecting with the host and that the user credentials / user account (having to translate here) are correct.
But still NO connection visible in WMDC.

I had the same problem with my X1. I assumed that because my HTC Diamond worked the X1 would as well.
I finally installed WMDC from the SE install cd, and bingo!! al good. Hope it works for you...

Wow!
Even though it does not work (yet) it's showing some new signs.
Installing WMDC from SE disc fails at 99% progress and then rolls back.
There's gotta be some installation error log this, right?
Thanks for coming up with that suggestion. Really, I should try installing from vendor CDs more often instead of hunting down the latest version on the net.

TillmanZ said:
Wow!
Even though it does not work (yet) it's showing some new signs.
Installing WMDC from SE disc fails at 99% progress and then rolls back.
There's gotta be some installation error log this, right?
Thanks for coming up with that suggestion. Really, I should try installing from vendor CDs more often instead of hunting down the latest version on the net.
Click to expand...
Click to collapse
maybe give event viewer a try and check under Windows Logs (not sure if it will be application or system tho)
just in case you aren't sure, in vista either type in "Event Viewer" in the start menu search bar, or type in "eventvwr"
Don't you just like vista?

That helped (to install SE's WMDC). The issue was that my HTC Universal was still connected to one USB port (for testing purposes since that device is not recognized either).
As soon as I unplugged the HTC I was able to complete the WMDC installation.
Unfortunately though it still won't connect to my X1.
Any more ideas?

what is your settings in Windows Mobile Device Center connection Settings?
Well here is my settings that is working with my x1:
Allow USB connections checked
Allow connections to "DMA"
This computer is connected to "Automatic" (this shouldn't matter)
Allow automatic device authentication checked
Allow data connection on device when connected to PC (this shouldn't matter either)
also, while this link was in the first link that I have posted for trouble shooting, just want to make sure you actually tried The offical Windows Mobile Device Center troubleshooting guide?
http://www.microsoft.com/windowsmobile/en-us/help/synchronize/device-center-troubleshooting.mspx
namely these steps:
Quote"
If Windows Live OneCare is installed on your machine, it may be blocking the device connectivity. Please click here for the steps to configure Windows Live OneCare to allow the device to connect.
My device wasn’t connected during this installation.
While it is not a strict requirement that you have a device connected during the installation process of Windows Mobile Device Center, we highly recommend that you do.
"

I didn't have the DMA set (changed that now). Everything else already was like you described and it does not work.
This really freaks me out. I always hated my iTunes/iPhone connectivity but that honestly works much smoother. Of course I do understand that this behavior is non standard as I have experienced myself that the phone works with my other Vista machine but that does not really help me here.

Any update on this? I am having the same problem.

I'm having the _exact_ same problem too, but in Vista x64. I don't know why WMDC can be such a c**t sometimes, as I have never been able to 'sync' with my Media Center PC.
My only saving grace is that my laptop has Bluetooth, and syncing works great on it. I have never had success connecting the USB cable (with many options changed around of course) to either of these computers. Only Bluetooth syncing works for me...
Hopefully we can find the answer!

What USB cable are you using??? the one that came with Xperia??? Cos the one that came with my Xperia never worked out of the box, it could only charge...
I also got another extra cord which came in another box, that worked fine for both syncing and transferring data until today, now it says USB device not recognized, maybe I was trying the flash X1 with new ROM through SEUS, did the whole lower volume key and power button to get the 3 strips.
Now I am using the USB cable that came with my external HDD, that's currently working, hopefully it won't fail me.
so any ideas??? I don't want to keep changing cables...