No network after installing Z4Root

Hi guys

I'm hoping someone can help me out of predicament of my own making

I have A1CS X220 tablet running Android 2.2 and wanted to update to the latest Android version, I was told on another site to install Z4Root in preparation for the upgrade, however since installing Z4Root I Can't connect to my WIFI, when I turn on wifi it sees the network and attempts to connect then gets as far as "obtaining network ip address from <my network>" then " Scanning" then disconnects leaving a padalock symbol beside the wireless icon, it looks to me like it doesn't like the network key but I've checked the key and re-inputed it several times,I've also tried different router channels, I've even tried it on a different network and it still wont work, I've un-installed Z4Root(which didn't work anyway) and I reset back to factory settings.

I'm really getting quite frustrated with this because I just don't know what else to try and it worked fine untill I installed Z4Root

Any help or advice anyone can give me would be much appreciated


Many thanks


Graeme

— modified on May 8, 2013, 8:08:46 AM