Wifi authentication problem

[AC Question]

Every time I leave my house and come back my phone will disconnect from the wifi and say authentication problem when I try to reconnect. The only solution that I found is to restart my router but when I do that effects my tv connection as well and I have to reset my tv as well so I cannot keep doing that. I was wondering if there is anyway I can stop my phone from do this or a better solution for when it does?

 

[belodion]

Welcome. Start with a perusal of this:
http://forums.androidcentral.com/showthread.php?t=326698