Authentication Problems with WIFI

[kayleelaine]

I recently purchased a phone it connected to my home wifi fine, it worked great. Then all of the sudden last night it just stopped working. Everytime i type in my password and try to connect it says "Authentication Problem". I have tried many things to fix this including rebooting my wifi. restarting my phone. putting my phone on air plane mode. and clearing all data in my google services. noting has worked. PLEASE HELP

 

[lizelles]

I have attempted each suggestion to no avail.... So other devices are connected without issue; the Sony Xperia Ultra being the only victim. It's driving me crazy

 

[lizelles]

Hi Melissa

I have the same issue with my Sony Experia.....since yesterday my wifi does not want to connect.....Authentication problem