Help Can't locate wifi

[Franknbeans]

Hi all, I had this phone for years and never had a problem, nor has anything changed in my house or phone.

For some reason my phone can not locate "see" the wifi in my house anymore. All other devices can without a problem.

If I reboot the phone it will see the wifi, log on and everything is all good. Then it loses the wifi 1 minute later and does not "see" it. Reboot again, same thing.

I reboot the router many times and that didn't fix anything either.

Any help is much appreciated.