I can't access the internet from my at&t hotspot

It worked fine before I installed tailscale. I did nothing unusual, just followed the instructions. The hotspot works fine from my phone so I’m sure it isn’t the hotspot. I get an IP from the hotspot but and I can log into the hotspot but I can’t ping anything e. g.
I also have a T-moble hotspot that works fine. I’m on it now. I’d sure like to run the at&t hostspot since I get 50 Mb on it but about 9 on the T-mobile device.

Oh yeah, this is a Dell Latitude Laptop running Linux Mint Mate 21.1.

Any ideas?