Wifi super slow on one computer.

[zamboknee]

The wifi on my MBP 16 (M1Maxx, 14.4.1) is really slow.
All other devices are fine. Wifi speeds are good but this one has gotten so slow that pages won't even load.
No firewall.
No backup service going.

How do I troubleshoot this?

 

[BrianBaughn]

How is the wifi speed when it is near the router and nothing is connected to it…including Bluetooth devices?

 

[zamboknee]

So as soon as I posted this the other devices were show lackluster speeds. Contacted ISP, no problems there.
Unplugged router (nest) and plugged back in and we're apparently 'back in business.'
Thanks for your help.

 

[BrianBaughn]

Yeah I have an old Linksys router running DD-WRT and it gets screwed up now and then. I assume the CPU and/or RAM get overloaded. Reboot always fixes it.

 

[Kenny99]

You could run (https://support.apple.com/guide/mac-help/use-wireless-diagnostics-mchlf4de377f/mac) on the MAC's and compare them.