Strange Network Behavior..

Hi guys,
I recently notice that when I'm trying to connect to a wireless network, after I've the security passphrase for the network and the check appears next to the network on my phone, the status icon stays "3g" and won't change to the wifi icon until much later. Today when I was accessing the network at work, the phone asked if i wanted to connect so i said yes, the icon changed from "3g" to "E" and then it stayed at "E". I had to turn off wifi and start it again, and it was still at "E" until I accessed some websites in safari. I reset my phone and now it shows i'm connected thru wifi.
Is this a normal behavior? anyone having similar issue?

Don't know if anyone is reading this haha but just thought I would give an update.
I restore my network settings, reset my phone at home and everything worked great. This morning when i got to work everything worked fine and I was connected to our wifi. BUT I noticed right after I got off a call, my network status shows i'm connected through GPRS, and then a few seconds later it became Edge, and then few seconds later 3G and it won't go back to wifi. I tried to connect manually but it said "cannot connect to xxx ". I then set my phone down to do some work and then all of a sudden it came back up..
I thought it might be a company network issue, but the computer i'm working on is connected to the same wifi network..
just don't understand why it would switch from GPRS to Edge to 3G in that order. Does anyone know?
Thanks in advance!

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