Android 5 Lolipop

[Android Question]

I have the original Nexus 7 tablet which I upgraded to Android 5 Lolipop this week, previously I was able to use my employers network at work which is a bit weak but usable, since the upgrade it shows an exclamation mark next to the signal icon & will not connect although if I go to settings & click on Wi-Fi it say's "Connected" but it clearly isn't. Strangely though if I tether my phones 3G it connects fine to that, I can't use that though asI only limited data so I am basically unable to use my Nexus at work now.
If there is no fix is there any way to roll back to to KitKat 4.4?
Thanks.

 

[kate]

Have you asked your IT department about it? They may know what's causing it.

KitKat ROMs for Nexus devices:
https://developers.google.com/android/nexus/images

 

[gillsman]

I'm afraid my IT dept don't know that their base from their apex but I’ve read the Lollipop upgrade has a wifi bug in it, I guess they will issue a fix in time.