After updating the iOS from 4.2.1 to 4.3.3 the WLAN connection to a Win7 Hotspot (Connectify) is no longer working in the sence that UPnP Apps like PlugPlayer can connect to a Media Server (Twonky) on the Win7 PC in a stable way. What to do?

I created a backup of the iPod in iTunes before updating to iOS 4.33 but after the update I can not restore. The backup is no longer shown in iTunes. I think iOS 4.3.3 has some differences in handling WLAN due to the Hot Spot capability for the iPone 4 which might cause these problems.
Please help. The only use of my iPod touch is to remote control my media network. And exactly that is no longer working the way it was before the update!
Best Regards,
Gerd

Now this has two direct effects - firstly it has increased the 3g usage for data and secondly it causes 'blips' with the ability to connect to previously working wifi connections.
Landshark2007 wrote:
We have identified that 4.2.1 in the iPhone 4 has WPA2 key length issues.
Although I have seen posts about the problem WPA2 key length problem, I am using an iPhone 4 with iOS 4.2.1 and have no problems connecting to my WiFi that uses WPA2 AES with a key that is over 20 characters.
Landshark2007 wrote:
There is also one other school of thought that we have which is to do with the increased battery performance on the iPhones. It looks as though the iPhone drops WiFi when it goes to sleep (ie: when it is turned off in normal mode).
An iPhone will maintain a WiFi connection when in sleep mode if it is connected to a power source.
I have no doubt that many users are experiencing problems with their iPhones. I just feel lucky that I haven't experienced any big issues with mine.

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You may leave comments at Apple Feedback.

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Thanks for the quick response ,
it did help alot and now the iphone works much much better and faster.
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or sold direct to a user by Apple (from their own Stores or online .)
Those iPhones are NOT locked
Where did you get your iPhone
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http://support.apple.com/kb/HT1808

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Hello babichanjacob
Change how it syncs by enabling Manually manage music and videos, then you can drag and drop the music that you want on your iPhone. Revert it back to test to see if that resolves the issue.
Managing content manually on iPhone, iPad, and iPod
http://support.apple.com/kb/HT1535
Thanks for using Apple Support Communities.
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joycesalvador wrote:
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Identifying iPod models
iPod touch (3rd generation)
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