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WiFi stopped working all of the sudden

I recently upgraded my 16gb 3g iphone to firmware version 2.2 last week. Everything was fine the past week or so until last night. I had two updates for two apps on my phone. I let them do their thing. The first app updated successfully with no problems. The second update hung up the phone a bit. I ended it and tried a few more times. It seemed like it wasn't able to download the update. Then I tried updating the app while the phone was hooked up to itunes thru the computer. That worked.

Now with that out of the way, that glitch was only the tip of the iceberg. Afterwards the phone started acting up. Any application that uses a data connection wasn't working right in WiFi mode. All the apps are being unresponsive. Most times i get a pop up, notifying me that there was a server timeout, or the server was being unresponsive or not available at this time. This goes for Safari, Mail, Stocks, Maps and weather. Along with apps like Ebay, Amazon.com, photokast...etc.

However, the phone works like normal when I turn off wifi and just use 3G.

SOMETIMES the phone will work with the Wifi on too, but its VERY random. The wifi works if i go thru a process.
1. I turn off WiFi.
2. Use the app in 3G mode.
3. Turn Wifi on.
4. continue using the app.
5. If i exit the app and restart it with wifi still on, the app stops working until restart the process.

It also works for a bit sometimes after being turned on from sleeping.

I already tried, a reboot, a hard reboot, a sync, reset the network settings.

I know its not my Wifi cause my Macbook is sitting right next to me is on the Wifi network and is working beautifully.

I have 3 solid bars of Wifi displayed on the phone and everything seems to be in order. I'm baffled. Any help is appreciated. Thanks

iPhone 3G 16GB Macbook

Posted on Dec 7, 2008 10:23 AM

Reply
65 replies

Jan 7, 2009 12:42 AM in response to shreaven

As already posted in the other thread, I bought a new iPhone and directly updated it to 2.2. At first, wifi worked great for a few days. But then, while watching a video at youtube, the connection suddenly was lost. Since this time, the iPhone wasn't able to find/connect to any wifi network. Of course, a full restore didn't solve the problem.
I'm quite sure that this is a hardware issue, as there is no way to make the wifi work again.
I had luck, because the iPhone was new and I had the possibilty to get it replaced. I hope that the new one's wifi will be working for a longer time 😉

Feb 26, 2009 8:28 PM in response to Noc748

The problem is with Comcast not Apple. Comcast upgraded to DOCSIS 3.0 in early December. The problem is the WCG200 and most other Cable modem wireless gateways like it are NOT DOCSIS 3.0 complaint. The upgrade on Comcast's end caused the problem. The only solution to this is to obtain a cable modem that is DOCSIS 3.0 compliant. If you can find an all-in-1 solution let me know because so far I cannot find any. right now my only option is get a cable modem that is compliant and just use my WCG200 as a wireless device rather than a modem too. Thanks Comcast!!

WiFi stopped working all of the sudden

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