(Solved) Android (LG G5) phone will connect to wifi but no internet - all other devices in house work fine on wifi

(Edit to add: the below problem is fixed. After several hours, the wifi internet randomly started working again on my phone. I don't know what the problem was but hopefully it doesn't happen again)

All of a sudden my LG G5 will connect to wifi, but no internet so I have to use data.

I've tried:
-resetting network connection
- turning the phone on and off
- restarting the router
- taking the battery out of the phone
- connecting and reconnecting to wifi (both the regular and 5G options) with no luck.

This is a Netgear Nighthawk router.

Any suggestions are appreciated or is likely something wrong with the phone? My husband has the same phone and his is connecting fine.