In short, I can't access the Steam app, Vortex app, or even go to mywifiext,net becuz it says I have no internet but I clearly do since other sites and apps work. I never had these issues until I started using my router, and I'm really annoyed since I can't easily access my games or mods to update them or download new ones.
I think its an extender? My roommate gave it to me when I moved my pc into my room from the living room cuz the wifi didnt connect, it says AC750 Wifi Range Extender Model EX3110 on the back. It's just like a cube thing. I don't know what firmware is, but I can try to find out.
That is how I originally set it up, and we have a cox router. I'm thinking of buying a brand new extender next time I get paid cuz this one is giving me more trouble than it's worth at this point.
If you're looking for a new extender, I'd look at the tri-band versions. they have a dedicated backhaul and this makes them much faster and with lower latency.
