My Archer AX21 (v2.6) has been rock solid until I updated to the latest firmware today to 2.1.7 Build 20221125 rel.69232.

Previously, I was running firmware 2.1.5 Build 20211231 rel.73898(5553).

After the update, I'm experiencing a lot of connectivity issues:

• When I look at ping times, they're jumping around a lot: 2-100ms.
• Every minute or so they balloon to 500ms+ and sometimes just drop.
• Prior to the update, I rarely had connectivity issues, and would see ping times between 2-20ms on average, with occasionally pings in the 50-100ms range.

Has anyone else experienced this? Is this a known issue?

I've tried rebooting (a few times), ultimately rolled back to the the previous firmware since the internet was so unstable.

Screenshot of what I typically saw on the latest firmware: