Hope this helps.
Delete and Reinstall app. ??
As of 9/21/2013
iPhone 5 iOS 7.0
iPad 2 iOS 7.0
My Fios app Version 184.108.40.206
Fios Mobile app. Version 2.0.7085
Router M14MR GEN 2 Rev. F
All parts of both apps working for me.
Please note my Location.
UPDATE AS OF : 11/11/13 10:23 AM
On My iPad 2
My Fios Mobile App
Version:2.0.7359 I did not uninstall/download this Version ...that's what it is today.
ALL PARTS OF IT WORKING FOR ME.
Could these SETTINGS in My Fios Mobile app. have a bearing on your situation ?
My Ip: 72.76.xxx.xxx
My Fips Code is: 34_003 which identifies NJ_Bergen County
After uninstalling and downloading new Version did you COMPLETELY shut down your iPad ?
In other situations this has solved problems ?
Please let everyone know when you get a solution.
OMG - for the past like 26 hours, I have been having the same exact authentication issue. I have tweeted Fios - altho very nice, all suggestions do not fix problem...I tried all that you tried too! Everything else on ipad is perfectly fine! This app worked up until about 8pm yesterday ...