Incorrect WiFi Password Error

i have been encountering problem when try connect wifi network password know sure right, won't let me , phone tell me "incorrect password ________" fix every time have reset network settings can tedious. once reset, plug password in , works after hour or so, networks have not connected within first hour start giving me "wrong password" error if password right. tips/suggestions?

running 5.0.1, jailbroken.

 

never heard of before.
you're sure not particular router that's giving problems? or every wifi ever try connect?

 

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