iPhone 4 suddenly stopped connecting with home wireless network

Upon getting a new wifi router, initially my iPhone 4 connected. Last night I lost wifi conneciton on it and cannot get it back. Updated to IOS 7.1 to see if it would help. Nothing. Have reset network setings, gone into airplane mode and attempted hard restart. Have also reset modem. The phone worked on another wireless network and all other devices in our house are working fine. Does anyone have any insights/ had this problem before? House network is Bell Fibe.

The phone can see the wirless network but when we go to connect it infinetly spins.

Thanks!!