Macbook software or hardware issue?

So, I decided to replace the keyboard on my macbook air.
That worked out well, except for the backlight being missaligned, but oh well...
Anyway, when I got back on the computer, the wifi that I normally uses, doesn't work for me.
it says wifi is connected to wireless and has the ip address
2601:7:2581:ac..:1240:f3..:fe89:71ae

the "." are numbers/letters that I've just taken out.
Normally, it would show as a normal IP address, but at this moment, it shows in mac address format.
When I log into another wifi point from my neighborhood, it works just fine though and shows a normal IP.
Other laptops/computers on my wifi network connect and work fine though.

 

Odd. It's never before shown IPv6 address there. It's qlways shown IPv4.
Now that I'm having issues, it keeps showing this one. I think I may have messed up the wifi antenna though as when I'm close to the router, it'll show the IPv4 when I log onto it and the Internet will work. I also realized that although other connections in my neighborhood are working, they work MUCH slower than normal. Probably an antenna issue smh.