Database Develop

[Q] Wi-Fi Woes

Ok I have a very iritating problem.
My captivate works amazing in all ways... except one. When I'm at home connected to Wifi, within a few mins of me putting the phone down, or even mid use, the wifi will just stop working. The icon still shows it to be connected however no apps are able to actually get internet. A quick pulldown of the quick access menu and tapping wifi off and back on again gets it going great... for another 5 mins. Then the same thing happens.
Its been like this ever since I got the phone, even after flashing different roms. Now i'm running a Linksys Wireless - N router - maybe they're not playing nice?
I dont think its a hardware fault because when I serve wifi, IE the captivate is an infrastructure mode access point for 3g, it stays on consistently and my laptop can tether for 2 hours or more.
Anyone know what might be causing this?
Thanks

When you have wifi on, go to menu settings and 'Wireless and network'. In Wi-Fi settings you can change the Wi-Fi timeout.

nickbarbs said:
Ok I have a very iritating problem.
My captivate works amazing in all ways... except one. When I'm at home connected to Wifi, within a few mins of me putting the phone down, or even mid use, the wifi will just stop working. The icon still shows it to be connected however no apps are able to actually get internet. A quick pulldown of the quick access menu and tapping wifi off and back on again gets it going great... for another 5 mins. Then the same thing happens.
Its been like this ever since I got the phone, even after flashing different roms. Now i'm running a Linksys Wireless - N router - maybe they're not playing nice?
I dont think its a hardware fault because when I serve wifi, IE the captivate is an infrastructure mode access point for 3g, it stays on consistently and my laptop can tether for 2 hours or more.
Anyone know what might be causing this?
Thanks
Click to expand...
Click to collapse
Try goin to settings->wireless and networks-> wifi settings (menu key)advanced and set the sleeping policy to never

I've done that...
i *Think* i've fixed it. I was using WPA2 IPK encryption or whatever.. Switched back to the 64 bit crappy WEP. Wifi was on all night and all morning with no cut out.
Might be just another linksys-is-crap situation.

HI, I figured I keep my wifi woes within a singe thread so.
I have an old D Link WBS 2310 router.
I recently got a message from AT&T that I'm near my data limit. This surprised me as my last cycle I barely got near 500mb. Since my bill isn't ready yet, I can't see exactly what it is I'm doing to use so much data.
TO be safe I figured I'd pull out my old router and set it up. After hours of hassle getting it to work on my new computer, I wasn't able to get my Captivate to hook up to it.
My laptop works fine. It gets a fast wifi signal, but my phone just says "Obtaining IP address" for a while and then gives up.
My phone gets wifi at work, at friends', at coffee shops - but not at home.
I've tried this with no encryption, WEP encryption and WPA2 encryption.
Each time my laptop would hook up to the wifi but my phone wouldn't.
I searched some other forums and found similar problems with HTC phones.
Some answers say that D Link sucks. But that answer applies to other brands as well.
Do I need "n" wifi, rather than "g"?
I don't want to buy another router only to find it still doesn't work.
Any help?

gluvox said:
HI, I figured I keep my wifi woes within a singe thread so.
I have an old D Link WBS 2310 router.
I recently got a message from AT&T that I'm near my data limit. This surprised me as my last cycle I barely got near 500mb. Since my bill isn't ready yet, I can't see exactly what it is I'm doing to use so much data.
TO be safe I figured I'd pull out my old router and set it up. After hours of hassle getting it to work on my new computer, I wasn't able to get my Captivate to hook up to it.
My laptop works fine. It gets a fast wifi signal, but my phone just says "Obtaining IP address" for a while and then gives up.
My phone gets wifi at work, at friends', at coffee shops - but not at home.
I've tried this with no encryption, WEP encryption and WPA2 encryption.
Each time my laptop would hook up to the wifi but my phone wouldn't.
I searched some other forums and found similar problems with HTC phones.
Some answers say that D Link sucks. But that answer applies to other brands as well.
Do I need "n" wifi, rather than "g"?
I don't want to buy another router only to find it still doesn't work.
Any help?
Click to expand...
Click to collapse
part of the IEEE 802.11n standard is backward compatibility with all previous 802.11 standards IIRC, so there should be no need to buy a new n device.
HOWEVER, i am also having issues with my wi-fi and my g capable router. i will meddle around with some phone and router settings to see if i can fix this, this is one area were i can actually be of some use on this forum

Hi. It turned out the wifi was broken on my captivate. I reset it to stock and it's all better. It had been working up to the previous day so I assumed that it was still working. The router goes down intermittently in general, so I've ordered a new one to see what's up.

Hi, I'm back! So after resetting the phone and getting wifi to actually connect (rather than being stuck searching for IP address), I'm now having the exact same problem is the OP. The OP seems to have solved this by switching to WEP. I tried this and it doesn't work. My timeout is set to never. Also, it's the same at home (I replaced my router) as well as at Starbucks and a friends house.
I'm connected, but can't download or sync. It works initially and then stops, and then comes back in briefly and then stops, all the while "connected." Sometimes I can fix it temporarily by turning off wifi and then turning it back on.
SO what's the deal? Is it a hardware problem? Is there some secret magic code?
edit: Just disabled encryption - same problem.

[Q] Anyone still having wifi issues???

I have looked at every thread and forum possible for the past 2 months. My wifes nexus and my own connects to our home wifi for a few minutes then disconnects itself (weather the screen times out or not) and will not reconnect at all. I have tried the wifi fix apps on the market, changed the settings on my router numerous times, factory rest my router and phone, changed roms, and even routers but nothing seems to work. My wife's nexus is stock and not rooted so I have been using hers as a reference thinking it was maybe a rom I was using but she is having the same problem. Any ideas would be greatly appreciated.
sigep235

I had that problem but as soon as I got to 2.2.1 and/or used a newer Radio version, the problem disappeared...
Although, N1s are still very picky on routers...try with another router and check if it keeps the connection alive.
Also check your router settings to see if they're optimal (try having no password set and see if it keeps the connection...if it does then it might be a problem with the N1 not crypting information well or so)
You could also try updating the router's firmware.
Make sure your wifi policy is set to "Never" (go in wifi settings the press Menu and click on settings)
Last thing you could try is manually set an IP address + gateway + netmask in the wifi settings as well as setting your N1's mac address to that same IP address in the router...
If nothing works then, I'm completely out of solutions

I just got on to look at some of the settings with my router when I noticed that some times when my phone says I am connected to the wifi there is no IP address assigned to the phone. Under connected devices it says "android device" but with no ip address associated with it...

I still have the problem
I still have the problem. I have pretty much given up on it. I have heard that if you increase the minimum CPU speed a little, it will help. I'm not willing to do that as it will undoubtedly waste more battery.
I have changed the wifi sleep policy back to "when screen turns off", because having it on "never" would make the phone think it's connected..when it isn't..leading to hours of no email notifications and such. But I can't imagine how frustrating this must be for people who don't have a data plan or some other similar situation.
I'm thinking about getting a Wireless N router (I have a G right now) and seeing if that helps. But even if I was to get one, I don't have much money to spare so I'd probably get the cheapest N routers, around 30-50 dollars..and I don't know if those are any good...or if there really isn't any difference between the high priced and low priced ones.

I said this in another thread, but I'll say it here.
I tried all of the things everyone could suggest and none of them worked. When I heard Broadcom updated the driver and CyanogenMod put it into his nightlies, I bit the bullet, unlocked my bootloader and installed CM6 and it changed NOTHING. So I went out and bought a new router: Cisco E3000. It works great. So I guess it was a bad combination of phone and router. I had to spend hundreds of dollars. Really ****ing pissed me off. But I wasn't going to buy a cheaper router without dual channel wireless N.

ksc6000 said:
I still have the problem. I have pretty much given up on it. I have heard that if you increase the minimum CPU speed a little, it will help. I'm not willing to do that as it will undoubtedly waste more battery.
I have changed the wifi sleep policy back to "when screen turns off", because having it on "never" would make the phone think it's connected..when it isn't..leading to hours of no email notifications and such. But I can't imagine how frustrating this must be for people who don't have a data plan or some other similar situation.
I'm thinking about getting a Wireless N router (I have a G right now) and seeing if that helps. But even if I was to get one, I don't have much money to spare so I'd probably get the cheapest N routers, around 30-50 dollars..and I don't know if those are any good...or if there really isn't any difference between the high priced and low priced ones.
Click to expand...
Click to collapse
Nexus has N connectivity but only on one band (2.4Ghz) and I don't think the technology matter (heck, I'm still on 802.11b ) it's really more of a phone/router combination problem...
I did actually test on my VERY CHEAP spare 802.11g router (DLink --> do not buy their products) and the connection did NOT stay...that was back when I was on stock FRG83 though...I should try again on Cyanogen but I'm wayyy too lazy ^^
btw, I really don't get why people always unlock when they wanna flash a rom....heck, keep your warranty!! there is an easy way of doing it without unlocking...meh
PS: I have a 50MB data plan (technically, I didn't buy a data plan, it came free) so I AM a heavy wifi user and it was such a pissoff to find out that my new Nexus One couldn't connect to Wifi and keep the connection alive...now I'm damn happy that it works after all that fiddling ^^
@sigep: try to assign a manual ip to your N1's mac addres...or update firmware, it definitely looks like a router problem...

The root without unlocking method wasn't too tested when I unlocked my bootloader.
I have made two swaps with no problems since.

pwig said:
The root without unlocking method wasn't too tested when I unlocked my bootloader.
I have made two swaps with no problems since.
Click to expand...
Click to collapse
Oh kay sorry then
Although all the new wikis and todos should emphasize on the locked bootloader methods to avoid voiding warranties...although I admit fastboot is always noobproof but I digress ^^

I've been testing several routers from different brands, and the only one that seems to work fine with mi Nexus One is the Linksys/Cisco WAG160N (802.11n, but 2.4 GHz only). However this one has other issues of its own, like not being able to connect to mapped ports after two days up and running (not even from the LAN). The N1 works fine, thought, it doesn't disconnect overnight.
I've also tried an SMC (SMC SMC7904WBRA-N, I think). This one is really bad, the router freezes after only two days of use, the lights freeze and it stops working altogether. I returned it after a week.
I'm currently using a Sitecom (300N WL-348). With this one the N1 WiFi is dropped over night, and the connection to this AP is disabled. I'm still testing if moving to a less crowded channel could fix that. I hope it does, since this router seems to have a more stable firmware that the Linksys/Cisco, same WiFi coverage (which is quite good), and even better WiFi performance. Not all is good, though, DSL performance is worse.
In the past I used Netgear routers. The firmware was stable as rock, but the hardware not so much and after a year of use they are very prone to failing. No idea if newer models are any better in this regard, they are impossible to find, so I don't think this has improved.
Since I have DSL at home, I'm looking at routers with DSL modem built in, so I don't have to have two devices (DSL modem and wireless router).

From my observarions - Nexus will disconnect from WiFi when the IP it has is lost and the network doesn't supply IP on time. After 1 or 2 IP assignment timeouts, it will skip the network and refuse to connect.
Every router I've connected to that supplied IP on time, even when revoked every X min, didn't cause disconnects.
Of course, WiFi on sleep set to "Never".

Success! Last night I updated the firmware of the Sitecom router, and changed the WiFi channels (it's set to use wide channel, so it uses two channels). This morning the N1 had still a solid WiFi connection and over night it updated all services just fine (weather, Facebook, email).

I've been using the Sitecom router since my last post with no issues. Then last friday arrived a small update that broke WiFi. On Saturday arrived the bigger update to Android 2.2.1 but the problem with WiFi remains. Before 2.2.1 Wifi has been working fine every day at home and work, now with 2.2.1 it's broken at home and work.
Are we moving forward? If Gingerbread doesn't fix this problem I'll have to do something about it: try cooked ROMs or even getting another phone . Currently my N1 keeps disabling my access points all the time.

Wifi (and BT!) Issues Were Hardware and Not CM7 Related!

I've been having big problems with wifi on my NC since exchanging my last unit a couple of months ago because of audio buzz/noise issues. I'm running CM7 nightlies and have tried EVERYTHING suggested to get it to be more stable. It was the usual scanning - connecting - scanning loop that many people have described.
While troubleshooting the problem I downloaded wifi analyzer from the market and it was showing my home wifi network peaking at around -85dB while my laptop right beside it was showing approximately -40dB for the same network. I reverted back to stock 1.2 to see if was related to some driver gain settings in CM7 and only saw one or two networks appear in my scanning list (including my home wifi) but not the ~25 wifi networks which were showing up on my laptop.
I made it back to BestBuy yesterday and even though my unit was exchanged a couple of months ago, they exchanged it again for me. Of course I checked the packaging of the new unit to make sure it didn't have the infamous blue-dot-of-partitioning (BDOP) before walking out.
I booted the unit, upgraded to 1.2, nootered it, restored my CM7 backup and voila! My home wifi was up around the -45dB mark and I could now see all the wifi networks in the area which showed on my laptop. I connected and its been rock solid wifi since! The bonus was I was never able to pair my Plantronics bluetooth with my previous NC and this time around, it started immediately and paired right away with no issues. It even holds the connection a couple of feet away!
So after a very frustrating two months trying everything to get the wifi connection stable, it turns out it was an issue with the hardware itself, likely an antenna/solder issue. This also confirms (although I think it was already) that the BT/wifi antenna is shared.
Sorry for the long explanation but some of you who are having these wifi issues should download wifi analyzer from the market (its free!) and take a look at the signal strength graph. If its only showing a few wifi networks and access points which are close are showing in the -70dB or less range, you might have the same hardware issue I had...
Brian

Thanks for the report Bryan....Its appreciated because these issues are fairly common.

Newer Nook Color won't see wifi

My family has 3 Nook Colors all of which have never had a problem seeing our home network (one main and 2 bridges - all seen just fine). But a friend actually just bought a new NC a month or two ago that absolutely will not see any of our wireless networks, even when sitting 2 feet away from the router.
Our nooks all are fine whether running stock, rooted or running a custom rom flavor. The friend's nook is stock.
Any ideas on what might cause this or how to deal with it?

Figured it out (or remembered it??). It would not connect to networks that don't broadcast their SSID, even if you enter it in manually. Don't remember if I had this problem before or not, but just flipped on broadcast for a minute and we're fine now.
Any one else run into this?

Galaxy Tab S2 5g wifi troubles

Hi, is this the spot to ask about problems with the stock tablet? If not, I'm sorry. If, so please help!
So, I got a tab s2 for christmas. So far I'm loving it, except it will not stay connected to 5g wireless for long! Sometimes it will kick me out every half hour or so of continuous usage, other times it will kick me every 5 minutes. The connectivity problem seemed at first like I just had to adjust something with my network except that any other device that uses the 5g signal does not have that problem! ALSO, sometimes when it hangs it completely freezes the tablet and I have to do a hard reboot (power and vol down buttons) to make it usable again.
At one point I was in the wifi settings page and saw the wifi toggle go grey. It NEVER reconnected after 3 or 4 reboots! Is there something wrong with this particular tablet or is this some sort software issue?
My router is a netgear r6250 fwiw.

Try changing channels on the router, you may have interference on the channels it's using
You can use InSSider to check for channel congestion.

ashyx said:
Try changing channels on the router, you may have interference on the channels it's using
You can use InSSider to check for channel congestion.
Click to expand...
Click to collapse
I have been using Netgear Wifi Analytics to figure out my wifi dropping. I have no trouble with signal in the house...None of my other wifi devices are having trouble! As a matter of fact, just a little while ago, while testing the wifi on the tablet, the signal dropped. I pressed the home button then the whole tablet froze again. Instead of hard rebooting it, I decided to leave it alone to try to get it to unfreeze on its own. It did after about a minute...BUT the area near the volume and power buttons are was pretty warm/hot. The battery also lost nearly 8% in that time as well!
Does this particular one I have just simply have a bad wifi switch/modem/antenna?

I have the same issue. SM-T810 keeps dropping wifi connection to my netgear r7000. Both 2g and 5g. None of my other devices have the issue. Seems to occur a lot with chrome or anything else that saturates the wifi link.

I'd suggest getting the tablet replaced. I've disabled the 2.4GHz mode on two of my routers (ASUS AC66U and ASUS TM-AC1900) and my Tab S2 never had any troubles with 5GHz on these routers.
Anyway, no matter what obscure configuration your router might have, it shouldn't cause the whole device to freeze. Unless Samsung seriously screwed something up, even if the wifi driver crashed (in the worst case), the worst that would happen is that Android won't let you turn on the wifi.

I replaced mine yesterday and the new one is just fine!

I called the Samsung help line, described the symptoms and they said it sounded like a hardware fault rather than a software issue - took my reference number back to place of purchase and swapped it over for a new one. The new one has had zero issues, has not disconnected from wireless once or frozen and even just general browsing seems smoother - the first one definitely had some issue with the wifi bit.
This without even rebooting the R7000 router between the last bout of freezing and disconnections with the old tablet this morning and then starting to download all my apps and settings and wireless sync of 2 gig of data for the new tablet without a single hiccup two hours later. So the router or signal are not the issue.

MadFinn said:
I called the Samsung help line, described the symptoms and they said it sounded like a hardware fault rather than a software issue - took my reference number back to place of purchase and swapped it over for a new one. The new one has had zero issues, has not disconnected from wireless once or frozen and even just general browsing seems smoother - the first one definitely had some issue with the wifi bit.
This without even rebooting the R7000 router between the last bout of freezing and disconnections with the old tablet this morning and then starting to download all my apps and settings and wireless sync of 2 gig of data for the new tablet without a single hiccup two hours later. So the router or signal are not the issue.
Click to expand...
Click to collapse
It sucks, but I'm glad I'm not the only one that had issues!