Unable to un-jailbreak Iphone4

[iphone4_sos]

Guys : I have been reading and following all instructions on how to un-jailbreak my iphone4 (AT&T) without any success. I am trying to update my iphone4 to IOS 5.1.1

Issue: Each attempt terminates with 3194 error. I am lost and desperate.

Iphone: Version 4.3.5(8L1) : Modem Firmware: 04.10.01
Tethered jailbroken with Redsnow.
PC Windows 7 x64
ITunes version: 10.6.3.25


I have tried the following troubleshooting steps:
verified "hosts" file to make sure there is no entry for gs.apple.com
removed password from iphone
disabled McAfee AV on my PC
Tinyumbrella was never run on the laptop i am currently using.
Tested the usb cable by connecting it to another iphone3 and took a successful backup.
nslookup gs.apple.com resolves to

Non-authoritative answer:
Name: gs.apple.com.akadns.net
Address: 17.171.36.30
Aliases: gs.apple.com

I have attached the log file from: AppData\Roaming\Apple Computer\iTunes\iPhone Updater Logs

What am I doing wrong here ? Please please help me.

 

[Massie]

Are you trying to update with a previously downloaded ipsw, or are you letting iTunes download it as part of the update? I've had issues before when using previously dl'ed ipsws.

Another easy first step: try to update on a computer not used before.

 

[iphone4_sos]

I am an IDIOT

Guys : I'm sorry - stupid me. I have been trying to do the restore all this time while my iphone was functional and working. I powered it off. Then simple powered it on and waited for the "connect to itunes" logo to show up and attempted the restore and bingo !! - it worked like a charm.

I am so sorry if any of you had been trying to figure out what the hell is wrong here. It difficult to fix problems between keyboard and chair. lol ..