Originally Posted by viper689
Try going to Settings > WiFi > Advanced and make sure Turn WiFi Off When Sleeping isn't checked.
If that doesn't do it, clean or dirty flash?
I clean flashed and had the same issues. Even after changing the WiFi off while sleeping option was returned to off.
The kicker is that the signal indicators make you think you have an internet connection but theres no communication going on. Toggling airplane mode was always enough to get it back, but that's kind of painful, especially if you don't know you're missing notifications and just pull your phone out to occasionally look for new emails and such.
If you read through the rootzwiki thread you'll see you're not alone on this one, unfortunately no one from the liquid team seems to respond, I also tried looking for help in IRC but had no luck.
Here's hoping they fix it in a future release.