my computer won't connect to the wifi network, but it'll connect to the wifi at my parents' house and my hotspot just fine. every other device we have connects to the wifi here perfectly fine.

i've reset my computer, reset my network settings, ran the windows troubleshooter thing, the settings are correct. i'm not tech savvy AT ALL.

i was connected to the wifi just fine a few days ago, but not all it does is say "No internet, secured" every time. the thing is, i don't have access to the router because it's in the apartment next to ours, since one of our neighbors used to be my fiancé's best friend and my fiancé lived there before we moved in together. so i can't restart it, we're currently no contact with the neighbor for reasons i will not disclose.

what can i do? it seems like nothing i'm doing will work, but i don't want to just constantly use my hotspot