No Wifi after iPhone 3.1 upgrade

Same here, updated to 3.1.2 today... no change to wifi.

Tim

Same here on iPhone first generation. Connection was OK before update to 3.1.2
I seem to have to turn Airplane mode on and off in order to connect to WiFi.
Come on Apple. Knock, Knock. Anyone home? Listen to the masses and fix this issue once and for all.

I just received my replacement iPhone 3G as the previous one had its WiFi decide to stop working only hours after the 3.1 firmware update.

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The history:

It happened at a friends place. I connected to his WPA WiFi network, attempted to use "Remote" to vote for a song on his iTunes DJ, then the phone dropped the wireless connection and that was the end of my Wifi.

In my case it was the WiFi option in "Settings" being greyed out and unavailable. In the "About" section, it would sometimes list a WiFi mac address and sometimes not.
==============================================

Ok, and back to today's adventure:

As the replacement still had the 3.0 firmware on it, I had to update it to 3.1.2 so as I could restore my backup.

After the update, the Wifi is still working (kind-of)...

I can start Safari and the iPhone will ask me which network I want to use. It will quite happily connect, but after that it will continue using the 3G data and no WiFi icon appears in the top left corner.

I have to switch Airplace Mode on, connect to my Wifi and then turn Airplane back off.

At least I actually HAVE some kind of WiFi now...

UPDATE

Spent the last two days going though all the hoops that I have already done with Apple Care. I now have a case number and the tech I spoke with said that he ran my case by his supervisor and that his floor supervisor "said there is an issue with WiFi chips" and was recommending a replacement phone. I have an appointment tomorrow at the Apple Store, so we'll see what happens.

--Sean

APPLE CALLED ME BACK - THERE IS A NEW UPGRADE AVAILABLE!!! - go to ITunes and download the upgrade. So far no problems. My Iphone is back!

I just checked, iTunes shows the current software is the 3.1.2 that was just released a few days ago. Does nothing to fix this WiFi issue, at least on my phone.

--Sean

I had no Wifi issues until I upgraded to 3.1.2.

Now no Wifi except it appears to connect after a re-powerup while I had yet to unlock the SIM, but testing it does not result in any Wifi network data 😟

3.1.2 upgrade did not improve matters.
So I went to the Shop who lent me a new phone with still has the 3.0 firmware and I am hesitant to upgrade!
Since not all models have this problem it would be helpful if people posted the phone details, so we could see if there is a link.

old phone:
Modem firmware: 05.11.07
Model: MB496FD

replacement phone:
Modem firmware: 04.26.08
Model: MB500FD

Is there any other important info that should be mentioned?

Following upgrade to 3.1.2(7D11) yesterday, I too have no WiFi access. Have tried all above with no joy.

After selecting WiFi 'on' and moving to safari, nothing happens for about 1 minute, then it asks for the WiFi password as the one it has is incorrect. So I input the correct one again and nothing happens. I have left it in that state for 5 minutes to see if it needs time, but no change.

Any help greatfully received.

Model : MB048LL
Modem firmware : 05.11.07

I agree with you.
This update (3.1.2.) didn't solve wi-fi problem, as usual they ignore it.
Regrettable!

After installing 3.1.2, I can no longer connect to WiFi. Apple, what the heck?

I too am having WIFI connection problems after updating to 3.1.2 this past week.

I can get a connection (sometimes) by switching airplane mode on and off. Then other times, the connection is broken sometimes in the middle of a session.

I'm connecting at home using AT&T U-Verse, which raises my blood pressure. Apple and AT&T need to get it together if they are going to partner.

Same here. WiFi broke after 3.1. Started working only intermittently, now after 3.1.2, wifi is totally greyed out "No wifi". I am very unhappy.

Version: 3.1.2 (7D11)
Model: MB704LL
Firmware: 05.11.07

You should also see the posting, "wifi issues" for the same issue. Lots of people are just returning their phones.

BTW, has anyone noticed the phone gets pretty hot if you talk on it for more than 20 minutes? That also started after 3.1... I wonder if that has something to do with freeky wifi.

For completeness I disabled security, switched from G-only to mixed b/g mode, and manually tried every channel instead of using auto. Nothing helps. At least I know it's not a channel or security issue.

The iPhone is the only device that has trouble connecting with this D-Link router.

*Note to the good Apple folks who maintain this discussion forum:* The OS selector when posting a reply stops at iPhone version 3.0.1. Isn't it time to add 3.1 and 3.1.2 to the list? Just askin'.