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Captivate WiFi issue?

My captivate has a problem. It'll connect to WiFi no problem. Unfortunatly, after a while (could be anywhere from long 30 seconds to a few minutes) the WiFi stops sending data. I have to disable/reenable wifi to get it to work again. It still says connected to network, it just won't receive data.
Anyone know of this happening, have a fix, or maybe what I should look for that might be causing this issue?
I disabled recently installed running apps, no help.
I did try a speedfix last night, and it was unsuccessful, and I uninstalled it. Didn't test enough after that to know for sure if it was the issue, but I don't think so.
It was like, I was going through google reader, started a youtube vid, paused it, restarted it, and it wasn't loading. Just wouldn't load. That's when I think the problem started, and I haven't installed anything since then, that i haven't disabled/uninstalled.

Have you tried flashing the stock OS. Maybe this will help. My wifi has been solid so far but i will see if i get a problem like yours. Try reflashing. If it doesn't work post back.
Sent from my SAMSUNG-SGH-I897 using XDA App

I have the exact same issue on enterprise class cisco wifi APs. The only difference is the symptom is immediate, and not after an interval of time.
Sent from my SAMSUNG-SGH-I897 using XDA App

abezapata said:
Have you tried flashing the stock OS. Maybe this will help. My wifi has been solid so far but i will see if i get a problem like yours. Try reflashing. If it doesn't work post back.
Sent from my SAMSUNG-SGH-I897 using XDA App
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I'm thinking of this, but I don't know...
I have my music on my computer, I have my .apk's in a folder and my market synced with appbrain. Anything else I need to do? Will appbrain reset, and make me go find and reinstall everything?
What about the apps that I paid for, what happens to them?
Would be my first flash, and I'm thinking about flashing one of those I9000 roms, but that would be a last ditch effort. I really hope to avoid this.
jhannaman82 said:
I have the exact same issue on enterprise class cisco wifi APs. The only difference is the symptom is immediate, and not after an interval of time.
Sent from my SAMSUNG-SGH-I897 using XDA App
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Click to collapse
It's an AT&T U-verse router, and only started a few hours ago, as near as I can tell.

I experience the same phenomenon of dropped wifi, and it occurs at any AP, but I have an interesting twist.
One time out of twenty when I start wifi, the 3g icon doesn't go away, but stays up on the status line with my wifi icon. On those rare occasions, my wifi stays solid for days. Unfortunately, it's random and rare.

same issue
My Wifi stops sending data and the 3G still shows. Sometimes restarting the router helps and sometimes nothing helps.

For anyone that might find this later, turns out (after two rom flashes) it was the router. I found this out when connecting my laptop to it. Surprised the captivate didn't admit it lost connection though.

I wish that were the case for me. My Captivate stays connected, but stops receiving at many different APs--Home, Starbucks, airport. I need a solution or a Scotch.
Peter

I had this exact problem, I tried a factory reset and it was still broken. I exchanged my phone and now it works perfectly holding a signal (except for enterprise 802.1x ap's which are known to be broken). (Also if you run dd-wrt check your logs for "deauthenticated due to local deauth", there is a problem with the wpa/wpa2 modules in either android or dd-wrt that they are not compatible with each other).

I actually found this searching for a solution to my own issue with WiFi. I actually fixed it while I was reading this. Unfortunately I have AT&T DSL with 2wire Modem. I went into the setting and setup MAC filtering and assigned it it's own IP. It has worked flawlessly for the past hour. I know this probably will not help when at other locations but at least at home I have a good connection.

VooDooVonz said:
I actually found this searching for a solution to my own issue with WiFi. I actually fixed it while I was reading this. Unfortunately I have AT&T DSL with 2wire Modem. I went into the setting and setup MAC filtering and assigned it it's own IP. It has worked flawlessly for the past hour. I know this probably will not help when at other locations but at least at home I have a good connection.
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Click to collapse
Same router type as mine that lost it originally. Interesting, wonder if there is a connection? Or random coincidence.

I'm having a wifi issue as well, but not to the extent others have.
I connect fine, but it appears as though my data download speed is capped at <2mbps for both wifi and 3g?
My wife's iPhone is getting download speeds of over 10mbps on the same wifi network and >3mbps over 3g.
Is it worth flashing back to stock? or is this a known issue?
I'm running stock JH3 with SRE 1.2.1a with lagfix

I have this same issue and it's really random. Running JH2, sometimes it works on wifi, sometimes it doesn't. Sometimes disabling\re-enabling wifi fixes it, but rebooting the phone always fixes it. Really frustrating...

Internet Connectivity issue after 3.1 update

Anyone else having issues with internet connectivity after the 3.1 update? None of the other devices on my network are having any sort of issues. I've already tried to remove my router and readd it again but no dice. Sometimes I need to refresh webpages 3-4 times before they come up, and simple websites too.....like Google.
edit: I see the icons on the WiFi icon blinking......but webpages aren't loading. Tested the YouTube app and videos take forever to load. Also tested in DolphinHD and Opera and they're having connectivity issues also.

no problem for me. Do a cold reboot
Sent from my PC36100 using Tapatalk

Yeh, I tried that too. I guess I'll see if the problem goes away in the next day or so, otherwise I'll go find some instructions on restoring the machine to default. Good thing i've been too lazy to load all my apps and data on this puppy lol....too lazy and busy just playing with the damn thing lol.

No problem here. I just update about 2 hours ago. WiFi has been online w/o interruptions.

My problem is that it wont see all wifi networks available! ? e.g I know at the office there are 2 wifi routers to connect too, it will see one but not the other and the one it sees it won't connect too?!
Ideas anyone?
Plus there is no option for setting a static ip with 3.1

Just a thought, I am sure I saw that the TF cannot detect WiFi channel 13. Is there a chance that those office routers use channel 13?

I had a problem connecting to my router. I just went into the network settings and "forgot" my network. Waited a minute and the transformer detected it and connected fine.

Same here: after a few hours, the wifi activity icon blinks merrily away, but zero actual connectivity!
I had to switch to airplane mode and back again for it to work.
Sadly, it's already happened twice since this the 3.1 update earlier today!!!

haha so I'm not the only one and I'm not crazy after all!

I'm getting an issue where the wifi indicator turns white but the arrows keep blinking. I have to log off then log back on for the indicator to turn blue and the data to start flowing. Pretty lame. All other phones, comps, and I pods are connecting to the router fine.

Galaxy tab 7 plus issues(Wifi and Screenlock)

So I have had the Galaxy tab 7 plus for a while now and I have had 2 major problems that have bugged me for a while.
First, the wifi seems to cutout. I can connect to my home network prefectly fine, but the wifi will cutout, mostly when surfing the internet. While in the browser, if i go to a couple webpages, eventually i will try to load a page and it will not load. I will get a conectivity issue. The tab still shows that I am connected to the network, and even still shows that it is sending/recieving data. So far, the only thing that I have found that fixes it is to turn wifi off and back on. Then it will work fine for a little while and do the same thing.
I have tried setting up in both static and dynamic and it does the same thing regardless. I have made sure that the firmware is up to date on both the tab adn the router. None of my other devices on the network have the same issue. I have also tried multiple different browsers and still the same issue.
Any ideas?
Second, the screen seems to lockout quite a bit. I will go to turn the screen on and it will not turn on. I have to hold down the power button and reboot the tablet to fix it. There does not eally seem to be a pattern that I can tell. It just randomly happens, a lot!
Any ideas?
Thanks in advance.

I seem to have those issues two, sometime it won't come out of deep sleep, have to hold the power button to restart. Second the wifi seems to lose it's connection while in standby, even tho it's set not two.
Verstuurd van mijn GT-P6210 met Tapatalk

I have had mine for about 6 months and have not experienced any of the issues you are describing. If you have not found others complaining about these same issues, then the problem may be with your specific device. You may want to see what your options are as far as warranties, etc. or maybe someone else on here might have some troubleshooting steps for you. Have you tried contacting Samsung support too? Who knows, they may have some answers for you.

I've had similar wifi issues - have to disable and re-enable wifi in order to continue surfing. It doesn't happen very often. I'm wondering in my case if it's because of all the wifi networks around me. I can typically see 15+ from my neighbors (city neighborhood, houses and apt buildings very close together)

Still having wifi connection issues - anyone else?
The connection gets really slow and then it is lost. I have to disable and re-enable wifi, but that will only get me a couple more minutes before it craps out again. Intetestingly, a few times when it's crapped out and I fired up Wifi Analyzer, the connection sprang back to life while running that app. I've tried many different settings on the router - Allow b/g, allow b/g/n, allow just n, allow g/n... broadcast SSID, don't broadcast SSID, lock the channel down, don't lock it down... frustrating!!! Any ideas out there?
Thanks in advance!

Had not experience the first problem of yours and I have been to a lot of Wi-Fi. Although that second problem occurred to me about 3 times, it's not frequent, but random. I think it's mostly because of the OS. Maybe this problems will be gone once ICS arrives for our device.

Graffiti Exploit said:
Had not experience the first problem of yours and I have been to a lot of Wi-Fi. Although that second problem occurred to me about 3 times, it's not frequent, but random. I think it's mostly because of the OS. Maybe this problems will be gone once ICS arrives for our device.
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Click to collapse
If we get ICS !!! Great Hardware! Lousy software (OS) support. My last Samsung mobile product.:crying:

Never experienced this issues. Maybe just random problems with screen unlock but not so major.
Sent from my GT-I9003 using xda premium

As far as I can this is happening with the gaxy tab 2 7",the plus and even with the 7.7. Shame on Samsung,besides this the tab 2 7" has the death grip on the bottom left corner.

Random WiFi slow down

I'm noticing strange WiFi issues, in that my data speeds keep slowing down to a standstill for no reason.
In fact, when I first booted the device, and started to install my apps, I wondered why there were downloading so slowly, so I installed "SpeedTest" and sure enough my data speeds were like 1.5mbps. To test that my network hadn't just suddenly gone crazy, I ran the test from my laptop and that confirmed normal speeds.
To remedy this, I changed my advanced wifi settings to just use the 2.4 ghz signal, then changed my router settings (a BT Home Hub 3) from smart wireless (auto changes channel to the "best" channel to just remain on that already pre determined best channel.
I then immediately saw an improvement, as it was downloading now at about 27mbps... and so I thought I'd cracked it.
Apparently not.... It regularly goes back to downloading really slowly, and sometimes, messing with all those settings again doesn't do anything to improve the speeds.
Anyone else experiencing this, or has any insights as to what is going on? could it be a wifi driver issue, which may be rectified in later updates or baseband versions?
Here are some pics to give you an idea... all from the same network

Back to awesome after changing router security settings... I wonder how long it will last this time?
Sent from my Nexus 5 using Tapatalk

Exactly the same for me:
http://forum.xda-developers.com/showthread.php?t=2514501
I'm being sent a replacement but I can't say I'm convinced that one will be any different.
This issue occurred on my BT home hub, a tp-link access point, and the access points where I work.

[Q] Wifi slow, 3g fast, any ideas why?

hi all,
Something has been bothering me for a while with my p6800, when connected to wifi my connection intermittently slows down to a crawl or even times out, taking forever to load a webpage. No problems on 3g though... My wifi connection is not disconnecting or anything, full bars all the way.
Anybody know why and how I can fix this, as annoying is an understatement
Thanks!
Ps. using 300n router, not a congested channel. No problems with wifi on notebook or other devices. On Android 4.1.2.

Hi Arobase,
Thanks for your reply, had just about given up on this one. :good:
I'm on 4.1.2 stock md3 and using WPA2 encryption. Don't think it matters though because I've had these problems from the get go, on stock ROM when just bought and on various Wifi encryptions (random browser timeouts, no Wifi connection drop though...). Can't really see a pattern, sometimes my wifi will work flawlessly, other times it just refuses...
Was wondering wether others had a similar issue. If you've got any ideas, do please let me know. Tbanks again!