Wi-Fi not working on S3 with 4.3

[Kent Workman]

Upgraded my samsung s3 and now can't get it to connect to my home wifi...costing me money in data usage........I read earlier posts on subject and didn't understand a thing....talked to att and they tried to help...nothing...they suggested backing up using kies and then resetting....I'm usually very conservative...if it isn't broke, don't fix it....but I finally decided to upgrade to v 4.3 after repeated messages...now look where I'm at....any suggestions to try before I reset...that word just makes me nervous

 

[Kent Workman]

With help from samsung, I have found that I have to shut off my mobile network in order to use my home wifi....Turn it off and then turn on my wifi....every single time I walk into my house? Didn't have to do this before I upgraded to 4.3....any help or suggestions on this?

 

[Jase12354]

#Added point 10 to the original question, still not working

Is unstable since the new 4.3 firmware nexus could have the same problem install archidroid stable build best rom there is change apn settings mssn adress because archidroid doesnt have a messenger cemtre number does work when manualy edit msn adress search settings apn for ur network