Q: My iPhone 5 will not automatically connect to my home wifi

My wifes iPhone 5 will not automatically connect to our home wifi, she has to log in each time (she has ios 6.1.4).  Mine, however will connect automatically with no issues (we have same phone and ios).  Here is what I have done so far to fix the issue and none have worked:

* I have reboted (hold home button and sleep/wake button)

* I have reset the network connections

* I have turned "ask to join" on, connected to the network, turned wifi off and then back on, it did not connect to the wifi

* I have manually connected to the network through the manual option, turned wifi off and then back on, it did not connect to the wifi

* I have erased all content and data and resored the backup from iTunes

* I have restored iPhone from iTunes and restored the backup from iTunes

My phone does not list a "forget this network" as an option on the wifi connection when I pull it up, so this is not an option.  So, what else is there to fix the issue?