4.8.2 update on Flint 2 (GL-MT6000) DoT error

[9b9e69c2-4b75-4420]

This is mere speculation but it sound like it may be related to time. See:

Wireguard connection watchdog script for LUCI/GL.iNet router?

If it's happening at bootup it could be a race condition. WG needs the time set to handshake. Unless your device has a real time clock (RTC) time is handled by the network time protocol (NTP) daemon which, of course, requires a WAN connection. It also requires DNS to be online. The problem is all network interfaces — including WG — come up at the same time. While the DNS, then time, is being looked up the WG tunnel could be trying to establish but failing to authenticate. This also applies when…