Iphone 4s upgraded IOS from 5.1.1 to 6.1.1. WIFI it's unusable. Phone it's connected, but doesn't navigate.... or navigate like a SNAIL.

Question

HI, Sorry for my BAD english, I'm Italian. I have an Iphone 4s.. four day ago, I upgraded my IOS from 5.1.1 to 6.1.1 (thinking that 6.1.1 was mature). This is WORST decision I was made. WIFI it's unusable. iPhone it's connected, but doesn't navigate.... or navigate like a SNAIL.
I'm a computer technician and cisco CCNP... after some speedy try, I was able to use WIFI with WEP and not with WPA....
Best result was with an 802.11/B AP  with 128bit WEP (no problem at ALL).......  I think there is a problem IOS - WPA and 802.11G AP...
I hope this can help some user...... for me it's absolutely USELESS info because all my customer uses different AP with different encription so I CAN'T use anymore my phone.... I switch to galaxy sIII until apple resolve this issue.
I'm an apple fan since 1987 (MY MAC II)  and NEVER has problem or problem was immediately resolved but
on last THREE year, apple was made some mistake.... using CUSTOMER as TESTER....
After 20 year of apple, if all continue so. I MUST abandon APPLE.

Answer 1

I know that only some iphone 4s are affected by this problem but....
before write, please CONNECT BRAIN and verify your info...
So .... My brain and my iPhone are working, Yours are not.
for your reference, HALF internet (including APPLE support ) are FULL of post regarding this issue....
Do you actually knows how big the Internet is? Do you also know how many iPhones is out there?
Stop BS.
I'm an iphone fan since FIRST MODEL (2007) and an APPLE fan since MACII..
My post would be a temporary solution for who are affected by this issue, for use wifi until apple fix it..
I don't care what you have used since bla bla that won't change the facts.
you don't know my skill so.... be propositive instead of....
You don't know mine either
Message was edited by: ckuan