After iphone 4 4.3.3 update wifi not working

After up date to 4.3.5, the wifi conexion is not automatic, must be manual and the sound decresed more than 50%!

I have had no problems connecting running 4.3.5 on my iPhone 4. Two ipads, macbook pro, mini and iPhone 3G all worked fine. Then the 3G was replaced by a new iPhone4. Now neither will connect. Everything else works fine. Even tried setting up a guest network. Is it something with the two phones?

Same problem on my 3GS, since the update to 4.3.3 it barely gets my home wifi signal (all other devices are fine) and it can't see any other wifi networks, meaning I have to stick to 3G everywhere but at home.

I did hard resets, factory restores, restore from backup... no chance. I wish I could downgrade to 4.2.1, which was stable, fast and had great battery life. iOS 4.3.x is a piece of crap, it slowed down my phone so much it's atrocious. It can take up to a minute just to open the Camera app!

You are not alone. We have 300 iphone 4 in my company. I have seen the exact same problem with more than 30 phones after upgrading to 4.3.3. And the problem is not solved in 4.3.5.

Ok, i had the same problem.

Here's what i did : Rename the connection from your MAC and will work. In this case your iphone will think it's a new connection and will automatically connect.

It's working great for me right now.

Let me know if it's ok for you too.

Thanks

see this, its about Princeton Uni's findings to do with IOS devices and their wireless connections..

http://www.net.princeton.edu/apple-ios/ios41-allows-lease-to-expire-keeps-using- IP-address.html

I have also found that I have fixed some wireless problems by turning off my bluetooth, mainly personal hotspot problems. But I have also suffered from frequent disconnects from my router, with the bluetooth on.

this is what i did to resolve the problem:

1. turn off cellular data, 3g, bluetooth

2. go to settings and "reset network"

3. wait until the phone reboots

4. do a soft reboot (press home and power buttons simultaneously for 10 seconds).

voila! the greyed out wifi came back alive.

hi .. i am having iphone 4s . Having exact same wifi issue as yours. It started with ios 6.1.2 update and still its on even in ios 6.1.3. Done everything hard reset , restore phone from itunes as new iphone.. etc.

How did you get your problem solved ? Does the new updates solve the issues ? or its a hardware related problem..

Regards,

Amit

India

Hi

I couldnt get it to work, the updates didnt resolve the wi fi issues I was experiencing and I had to minimise my use of my iphone as a result. Its a hardware related issue and I think Apple are not interested in fixing it. I am looking in to buying a Samsung in the future perhaps they will look after their customers better !