On my Galaxy Tab 2 (7.0), I am suddenly unable to connect to Wifi

I've googled this and turned up a bunch of inconclusive forum threads. I've also checked out a few similar questions on this site, but none of them quite match my details. So here they are: I have a Galaxy Tab 2 (7.0) that's been working fine with my wifi router since I got it about 6 months ago. This morning when I fired it up, it rebooted and now I cannot connect to my wifi router. My wifi is not the issue as my Nexus 7 tablet is connected and working. This is what I see: - When I go to Settings > Wi-Fi, I see my network listed. But status is stuck on Obtaining IP address - After a while, status reports Network disabled. Poor connection Tablet also reports that a "Software Update" is ready. Not sure if this is related to the issue. But when I try to update, I get a confirmation page and when I hit confirm button, I get message Unable to connect network. I've tried the following: - Rebooting tablet - Forgetting and reconnecting to my network through Wi-Fi settings - Read this solution , but couldn't find Mobile Network Settings Here's some system data from my tablet: Model Number: GT-P3113 Android Version: 4.0.4 Kernel Version: 3.0.8-999349 Build Number: IMM76D.P3113UEBLH2 A simple solution would be appreciated. I'll post a solution if I figure it out myself. Thanks!