Hi All!
I have a very strange situation and I was wondering if anyone else has experienced this. I am using BlueMail to connect to my work email via exchange. When I am on WiFi everything works great. The strange behavior starts when I switch over to mobile data.
When I am on mobile data I can't connect to the exchange server to read email. I am notified of any new emails. I see who they are from and the subject but I get a connection failed error any time I try to read the email. I've even gone into the settings to try and test the connection and on mobile data that connections fails every time. So I tried a few things:
1. I tried another email client. In this case I tried the GMAIL app and the Outlook app that is in the Play store. Once again both can connect on WiFi but not on mobile data.
2. I tried hotspotting my phone and then trying to connect via my laptop. I was not able to connect to the exchange server over my hotspot using mobile data.
3. I tried using my VPN service on my OP3T over mobile data. Then I tried connecting to Exchange. This works!
My carrier is T-Mobile. I am wondering if they are somehow blocking exchange access. Has anyone on T-Mobile experienced something similar?
That is quite interesting. From the sounds of it, yes something is delimiting data transfer. The thing is Exchange ActiveSync works over port 443 as do most https websites. As that data is encrypted from the server side to your client device, T-mobile would have no way to say you have new mails but not actually show you the mail as the encrypted traffic would disallow that. Just for that little fact, it sounds like this might be something Exchange side and you are in conflict with a policy on the server.
As VPN would make Exchange think you are on the local network, that may be why it works in that instance. as it suddenly find you in conformance with policy.
As to what that policy may be to lock you out, I can not think of an out of box Exchange rule that would do that. Does your company utilize an MDM servicing application? If you are rooted, and they are enforcing a block on rooted devices, that could be a cause.
When I connect over VPN I'm not connecting to work. I'm connecting to a PIA server in the US. Also when I'm connecting over WiFi I'm connecting from any WiFi (including my home WiFi). WiFi works 100% of the time.
You could be right in that the issue could be on the exchange server but I'm using the same device over WiFi and over VPN. If there is an issue with root policy on the exchange server side one would think I'd have the issue every time I try to connect. That being said I know nothing about exchange nor my employer's policy.
It's certainly an interesting issue. I have a work around but I'd like to understand what is going on.
I am still suspecting T-Mobile somehow. My coworker (who is on AT&T) can connect using mobile data on his iPhone. He didn't do anything special or talk to IT about the policy. Anyone here checking an exchange account on their 3T on T-Mobile?
Demati said:
I am still suspecting T-Mobile somehow. My coworker (who is on AT&T) can connect using mobile data on his iPhone. He didn't do anything special or talk to IT about the policy. Anyone here checking an exchange account on their 3T on T-Mobile?
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I am actually using Exchange Activesync myself over T-Mobile. Had it on Oxygen OS, CM 13/14, and now I'm on RR.
Issue free.
Best of luck on this. Very interested to see what the issue may be (as you may have guessed, I'm one of the exchange admins)
magoo5289 said:
I am actually using Exchange Activesync myself over T-Mobile. Had it on Oxygen OS, CM 13/14, and now I'm on RR.
Issue free.
Best of luck on this. Very interested to see what the issue may be (as you may have guessed, I'm one of the exchange admins)
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Click to collapse
If I figure it out I will definitely post here. I am still scratching my head.
Related
Hi People
This is my first post so go easy on me!
I’m having problems sending mail using smtp on my tytn II. (error message says check network coverage and account info is correct). I have both wifi and HSDPA connections and I’m pretty confident I have all the account setting correct as it works on my old HP4150.
Everything else works fine i.e. web, windows live, exchange and as it works on my old HP this proves account settings are correct and my ISP servers relay SMTP. Anybody experienced any problems like this or have any advice.
Ta
During your setup of the email account, there is an option ( I think under advanced server settings or ??) but you choose which connection the phone should use (i.e. Media NEt, My ISP...whatever) make sure you have it set the a real Internet connection.
grizzley said:
During your setup of the email account, there is an option ( I think under advanced server settings or ??) but you choose which connection the phone should use (i.e. Media NEt, My ISP...whatever) make sure you have it set the a real Internet connection.
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Yep, it's set to "internet connection" I’ve also tried the other connections types and they all have the same effect i can receive mail via pop3 fine but can't send it!
I've also tried disabling wifi, and just using the HSDPA and vice versa.
What is so strange is it works fine on my old HP4150!
What network are you using and what email provider?
Tom Williams said:
What network are you using and what email provider?
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isp = demon.net and their smtp address is post.demon.co.uk and i'm using i'm using a 3 contact sim.
when you added the emal account did you enter the details yourself or did you ask the device to scan for the settings for itself?
Did you get the device from 3 or was it on another network before?
custom said:
isp = demon.net and their smtp address is post.demon.co.uk and i'm using i'm using a 3 contact sim.
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You know things are getting bad when you start replying to your own posts!
Anyway i've just setup a google mail account for pop3 use and that works fine. Which kinda points to my ISP mail account settings but doesn't explain why they work fine on my HP4150!
Ok, but that doesn't answer the question I asked.
Anyway the second comment does. I would check the SMTP server as that does nto sound like an SMTP server to me, that looks like the incoming server personally.
Otherwise I wonder if its worth trying the generic 3 smtp server? If they have one.
Tom Williams said:
when you added the emal account did you enter the details yourself or did you ask the device to scan for the settings for itself?
Did you get the device from 3 or was it on another network before?
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The 3 setting were done automaticly by the network wizard, the email account details were setup manually and the device is HTC sim free and unlocked.
Ok. Thats simple enough.
Does the demon email account need SSL or anything?
Tom Williams said:
Ok, but that doesn't answer the question I asked.
Anyway the second comment does. I would check the SMTP server as that does nto sound like an SMTP server to me, that looks like the incoming server personally.
Otherwise I wonder if its worth trying the generic 3 smtp server? If they have one.
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Here are the demon setting, they work fine on my HP, and on outlook 2007 on my desktop machine.
http://http://www.demon.net/helpdesk/technicallibrary/misc/numbers/
I'll see if i can fine some 3 server setting and give thoughs ago.
Tom Williams said:
Ok. Thats simple enough.
Does the demon email account need SSL or anything?
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Not to my knowledge and i have tried switching in on and off and it made now difference!
I'm really not getting anywhere with this fast! I've done a hard reset just in case any other programs are settings were causing problem and i still can't get it to work!
I've also managed to setup my pop3 account on a N95 and that works fine just like my HP4150 does, it has to be something on the tytn!
I used to work for Thus/Demon a couple of years ago, strangely enough. Their SMTP server only accepts incoming connections from Demon IP ranges - you can only send if you are connected using a Demon connection. i.e. this would only work if you are connected at home over wifi.
I just tested this from my work computer and this is still the case - I got an SMTP 550 error saying the service is unavailable from [my work IP address]. This would explain why you can't connect over HSDPA, but wouldn't explain why you can't connect over wifi at home.
You could try downloading PocketPutty and try using telnet to connect to post.demon.co.uk on port 25 - it should give you a more meaningful message than simply telling you your connection is not working.
hicks said:
I used to work for Thus/Demon a couple of years ago, strangely enough. Their SMTP server only accepts incoming connections from Demon IP ranges - you can only send if you are connected using a Demon connection. i.e. this would only work if you are connected at home over wifi.
I just tested this from my work computer and this is still the case - I got an SMTP 550 error saying the service is unavailable from [my work IP address]. This would explain why you can't connect over HSDPA, but wouldn't explain why you can't connect over wifi at home.
You could try downloading PocketPutty and try using telnet to connect to post.demon.co.uk on port 25 - it should give you a more meaningful message than simply telling you your connection is not working.
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That might explain a few things, Thanks, We use demon as our work ISP to and i've only tested my HP4150 and N95 at the office and at home. I do get the 550 error in the rejected email from demon also! But as you say you would expect the tytn to work on wifi and i have tried it with phone turned off.
Well if its any consolation i've never managed to send a single email since I bought my device. I'm on T-Mobile in the UK and my ISP is Nildram, and I can check email from any POP3 account just fine, but when I try to send anything I get the same error message as you. I've tried every conceivable combination of phone settings, connection settings, SMTP servers and NOTHING has ever worked. Thought I was missing something obvious but now im not to sure!
That makes me feel a little better! I think i'm gona do a bit more digging and see if i can find a work around.
I was thinking of maybe trying a newer radio rom to see if that has any effect.
What IP address does it say after the 550 error? You might not want to share it here for security reasons but www.samspade.org will let you do a whois on it. This will let you know if the device IS actually connecting on the demon connection, or if for some reason it is not.
Sorry I've made a slight mistake, The 550 relay not permitted email only occurs if i switch off "outgoing server requires authentication" there are no IP address attached to this.
With authentication on a window pops up on completion of sync saying "The message could not be sent check network coverage and that account info is correct"
I've just tried to use pocket putty and to be honest i think it might be a bit out of my league! I tried to open a telnet connection on post.demon.co.uk port 25 and just got a black screen!
Hey Guys,
I recently have been experiencing syncing issues with my AT&T Tilt to my works Exchange server. It was working fine up until two weeks ago. Now, when I sync, it just hangs - status bar on my tilt shows no progress as if its trying to communicate.
I tried the following:
1. Delete the configuration settings on my phone and reconfigured it with the appropriate Exchange information.
2. Deleted the mobile device profile via Web Outlook.
3. Flashed the newest TILT rom from HTC.
I still can not get it to sync over AT&Ts network for some reason. The really odd thing is that it will sync with my works Exchange server only if I sync up with my home PC. Some how it uses my network connection at home to sync with Exchange?
Did something happen on AT&Ts network were I can not reach my works IP? There are a number of WM devices at work who are on Sprint, Verizon and nextel. They are fine and dandy. Pretty much all the AT&T phones are suffering this problem.
Any ideas?
It could be the access point you are using WAP.CINGULAR vs. ISP.CINGULAR (do a search for these, you'll get alot of info).
The quickest route I think would be to call AT&T. It doesn't seem to be your hardware/OS, since you just reflashed. It doesn't seem to be your exchange server since others can access it.
Exchange Activesync is supported by AT&T, and they should be able to walk you through all the required settings and/or answer if there is anything on their side that may cause the issue.
True, you will probably have to deal with their tech support, but it might be a quicker fix to spend an hour on the phone then wait for more information from here.
Hi all, I have a strange problem and wondered if anyone could think why it won't work.
I am trying to get access to my work FTP server via andFTP. Now it works fine on my home WiFi (so not an internal external issue) but can't get it to work over the 3G. Does anyone have any idea why this may be or am I just best off trying a different client?
If it doesn't work on 3G, then it's because you haven't forwarded your FTP port in your router. When your phone is connected through 3G, it is outside your local network.
And then you also need to know your "outside" IP address. (Google my IP)
And then thats the IP you need to connect to in andFTP.
ZigmaDK said:
If it doesn't work on 3G, then it's because you haven't forwarded your FTP port in your router. When your phone is connected through 3G, it is outside your local network.
And then you also need to know your "outside" IP address. (Google my IP)
And then thats the IP you need to connect to in andFTP.
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Click to collapse
Thanks for the reply. Just to clarify though it is definately working externally as I can access my works FTP server fine from my home via wifi, even though they are on completely different networks so I know the routing and forwarding etc. is correct from the FTP server end. I just cant work out why it wont connect over 3G.
Can you login to your FTP from work? Or just outside your own network?
It is not the same that you can connect to an outside FTP, that it is to connect from the outside to your internal FTP.
You need to forward port 21 in your router to your FTP server's IP address. Otherwise it wont work.
ZigmaDK said:
If it doesn't work on 3G, then it's because you haven't forwarded your FTP port in your router. When your phone is connected through 3G, it is outside your local network.
And then you also need to know your "outside" IP address. (Google my IP)
And then thats the IP you need to connect to in andFTP.
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Click to collapse
I can log-in internally when connected to WiFi, I can log-in externally when connected to WiFi, I can't log-in via 3G at all (SocketException). I may well try another FTP client, any recommendations.
So if you connect to a WiFi that isn't your own, you can still log in?
If that is so, then I guess they might have blocked FTP transfers over your 3G network.
It works on mine, thats why it sounds wierd to me, and the only difference is more or less the mobile company.
ZigmaDK said:
So if you connect to a WiFi that isn't your own, you can still log in?
If that is so, then I guess they might have blocked FTP transfers over your 3G network.
It works on mine, thats why it sounds wierd to me, and the only difference is more or less the mobile company.
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spot on... after trying a new FTP client and that not working I have done a bit of digging on the web and it seem's t-mob uk block FTP transfers. Anyone else on the same provider confirm this?
That sucks
Try to call t-mobile and ask them if this is just a bug, or if it was intended.
tell me about it! Gonna give them a ring when I get five minutes although I can imagine the call now...
Me: Hello, I cant seem to access FTP via my mobile internet.
T-Mob: Whats FTP???
Me: Could you please open Port 21 so I can access my work files.
T-Mob: No, but did you hear about the great new services you are entitled to for just £xx a month...
cyberkid2002 said:
spot on... after trying a new FTP client and that not working I have done a bit of digging on the web and it seem's t-mob uk block FTP transfers. Anyone else on the same provider confirm this?
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FYI, I can ftp my home ftp server no problems over T mobile network using AndFTP.
It could well be how they have you set up, and what package you are signed up for, If you got a G2 from tmobile, I was told there is a specific set they have for you if you have a G2
thanks for the info Higgsy...
As an update to this I have just gotten off the phone to T-Mobile CS and have to say they were very helpful. Although the guy was unsure at first why it wan't letting me get through to FTP he suspected it could be due to not having 'web n walk plus' (£7.50 per month instead of £5). Due to a long wait he added this to my account free of charge.
The problem hasn't gone away yet but he did say it could take up to 24 hours to go through.
Will keep this post updated and let you know if it gets sorted.
I thought it might be that, I used to get this issue trying to access certain things on my old e71 when I had standard web and walk set up. I was actually told by a tech support guy, who was also very helpful that the G1/G2 needed a specific web and walk/account set up.
a quick update to this and 24 hours on unfortunately the upgrade to w+w plus doesnt seem to have fixed things, have decided to give this a miss now and wait for something like a dropbox app to come along.
On the plus side I yet again mentioned my poor internet speed (was averaging around 300-350kbps) so he had a look at the account. Despite being told on several occasion before there was no issue he had a look at the profile assigned to the account and found that, surprise-surprise, I was being throttled at 3g speeds. A few minutes and a phone reset later I am getting speeds in excess of 1500kbps! Hurrah!
I'm not sure what AndFTP's default is, but maybe you want to check that you are using passive mode (it's in the Advanced tab).
Hi all,
I've been trying to get PPTP VPN to work for my nexus one a while now. However, I always receive the "server hang up" error. I tried my university VPN last few months, and ProXPN service just recently. Both are set up and run just fine on my laptop. I'm on CM 5.0.8 and connecting using wifi. I've read somewhere that the pptp client in 2.1 is buggy. Is it still the case with CM5.0.8?
Thanks!
Any help at all?
I wish I could offer help but I can't. I am in the same situation with my work VPN. At first I thought it may have been that NAT-T wasn't enabled on the VPN server (since Tmobile connections to VPN seem to need that) but it wasn't the case. A co-worker of mine has a MT3GS unrooted and his VPN connects flawlessly. I am wondering if there is something in the HTC Kernel that makes it work better. Maybe you should check to see if NAT-T is enabled on your VPN servers? Good Luck!
**Update**
When you put in your username try adding a space to the end then immediately delete it. then enter your password as usual.
I have been doing research on this and it turns out that the Nexus 6 had issues with corporate wifi on 5.0. Corporate wifi is just wifi that requires a username and password to access if you do not know and this is the kind of wifi my college uses. Well hoping this problem would be fixed with 5.1 update I got the update and am still having the same issue it verifies the network but only says saved never connects however many tries it does its just a huge loop and this is getting very annoying. I dont know if there is something I should try to resolve this problem or will just have to stick it out until google addresses it. If anyone knows more about this issue please inform me because I have reached a wall with my research on this issue.
Yeah, ever since I updated to 5.1 I haven't been able to connect either, and I try through the Xpress Connect app like and it never works. I had been able to connect normally when I was on 5.0.1 before.
ItsRhody said:
I have been doing research on this and it turns out that the Nexus 6 had issues with corporate wifi on 5.0. Corporate wifi is just wifi that requires a username and password to access if you do not know and this is the kind of wifi my college uses. Well hoping this problem would be fixed with 5.1 update I got the update and am still having the same issue it verifies the network but only says saved never connects however many tries it does its just a huge loop and this is getting very annoying. I dont know if there is something I should try to resolve this problem or will just have to stick it out until google addresses it. If anyone knows more about this issue please inform me because I have reached a wall with my research on this issue.
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Click to collapse
Hm, my cable company offers local WiFi and I've been able to connect to their userid/password-required routers, then use their network. Did this just a couple days ago when signal in a particular store was really hampered.
Maybe it depends on the particular router and/or configuration they use?
- ooofest
We had to update firmware on our corporate router for the problem to go away.
See my post here for more details: http://forum.xda-developers.com/showpost.php?p=59682044&postcount=12
LEAP authentication.
Try installing the hydra kernel.
I use it along with meanpop and have no problems connecting to LEAP
ooofest said:
Hm, my cable company offers local WiFi and I've been able to connect to their userid/password-required routers, then use their network. Did this just a couple days ago when signal in a particular store was really hampered.
Maybe it depends on the particular router and/or configuration they use?
- ooofest
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By username and password I meant one that the company or school gives you individually its not the kind of regular router login because at home I connect no issues but its the school wifi they even checked my account to make sure I wasnt blocked out of it and I was not. My fault for not being specific in the original post.
In my case N6 was able to connect to one password protected SSID without an issue, the subnet associated with this SSID is dedicated to provide internet access only.
The SSID N6 was having problem to authenticate with, was another SSID, whose subnet is bridged to provide access to both internet, and to corporate network.
According to Dell support, the Sonicwall router was failing to authenticate a connection coming through a bridged interface. I guess, N6 and/or Android 5.1 implements something new vis-a-vis authentication, that an older SonicWall firmware was not designed to deal with.
Immediately after SonicWall firmware update the problem was resolved.
Just wanted to chime in on this one... We have a corporate Wi-Fi as you describe (each user has a separate logon to the network) and I've not had any problems with Lollipop, 5.0 or 5.1. Not very helpful for you, but at least now you know it can work...