Help Heeeeelp!!! Keep getting kicked off of wifi !?

[jcdied4us]

So I have Verizon FIOS at home and my phone has always picked up the wifi signal once I get home. I've had my Xperia TL for several months now but yesterday it started asked me to enter the router password. I thought it was a glitch and re-entered it but every time the phone sleeps and I go to use it again, it has forgotten the password again. It happened at least 4x and is currently not connected via wifi. Any ideas? Thanks.

 

[Sam-SonyXperia]

I would first try simply rebooting the router if you have not already and if this doesn't help then it may be worth while looking at running an updater/repair:

To repair the phone software
1. Install PC Companion on a Windows PC from Support at Download for PC - Sony Smartphones (Global UK English)
2. Turn on the phone, and connect it to the PC using a USB cable.
3. In PC Companion, under Support Zone and click Start.
4. Under Phone Software Update, click Start.
5. Click repair phone.
6. Follow the on-screen instructions.