iTunes to iPhone "Unknown error 0xE800007F"

I have the same error message. I have iOS5 installed and Wifi-Sync set up. The error message occurs as soon as I open iTunes and it detects the phone.

I have the same too, I hope someone has an answer soon! Yet it connects to my iPad just fine. Just my iPhone4S won't connect...

Exact same problem here. The wifi connection to iTunes from my iPhone4S seems to work most of the time, but I do get this error from time to time. Have not noticed a similar problem with iPad2 (obviously, before anyone asks, I have iOS5 installed on the iPad2 and iTunes 10.5 is installed on my PC)

Wilf

Same here, with the iPad2. iOS 5 everything set up and I get the same error. This was the only mention of the error I could find....

I have a similar issue. I have an iPhone 4 and an iPad 1, both are configured to WiFi sync and do so when connected to power. The issue I have is that when iTunes is running in background on my laptop, for some unknown reason, randomly the same message ocurrs. So, to clarify, I'm not even attempting to sync and the iPad and iPhone are *NOT* connected to power.

Yup. The issue seems to be for me exactly above. As soon as iTunes detects my iPhone I get this message. Tested by leaving wifi range. When connected to to my Wifi network again the error message appears.

Similar also to others at times when I try to sync, I get a message saying that it isn't possible because my home computer is not in range. So at times itunes and the iphone 4 can't see each other.

If there's one thing Apple are not good at, it's getting wifi to work properly. Even my macbook air can't find a wifi network that every other machine in the house can find automagically.

Something like that is also happening to me. I have the iPhone 4 with ios5 and iTunes 10 in my PC and in my case even if iTunes is not running, it will from time to time launch itself and after about 30 seconds the same error pups up.

I also sense a delay and even a fail to respond to my commands (the iTunes page) when i click in several areas of the page.

I hope Apple comes up with a fix soon because it is very annoying.

This was my precise issue - just came into range of my laptop, not even trying to sync, message popped up.

Got the same message from iPad. BUT, plugged iPad into power, and everything is fine ... synced, etc., etc.

Another one here. Not Apple's finest hour this. Very disappointing. It's happening with my iPhone - the iPad isn't even being seen in the first place.

Yes all have up to date s/w.

Same issue here, iPhone 4 and iTunes on Windows. Get the error when coming back into wireless range.

Sync also doesn't happen. The phone says it will reattempt when it can see my PC, and it won't start until I restart iTunes.

Just want to mention that this same error message is happening to me (iTunes 10.5, iPhone 4S). Hope it's fixed soon.

Same thing here...

Iphone 4 with iOS 5.

Itunes on a Laptop.

Bump.

Same thing. iPhone4S with WIFI sync turned on. iTunes 10.5.0.142 on Windows 7 Ultimate 64-bit.

I have the same issue. iPhone 4S iTunes 10.5 Mac OSX 10.7.2.

I just tried ejecting the phone from iTunes then restarting both iTunes and the phone and it seems to have solved the problem (for now at least).