I have an Apple 5-S and I cannot stay logged in on WNFF.net even though I hit FOREVER.
If it is a complicated fix please don't waste your time as I am a dinosaur. Thanks
Sounds like a corrupted keychain file entry. The usual fix requires deleting the entire keychain and rebuilding it one entry/website/login at a time. It's pretty much a throw the baby out with the bathwater approach, but it's doable.
HS is right though - if you dump one place, it can dump you elsewhere. If that's not the case and it's only the phone, let me know if you want to kill it and I'll dig up something.