Even more Problems with 841N <-> CPE210, most of the time the CPE210 Client now locks up and has to be power cycled. Restarting the Station does not help. Would like to try snapshots builds on CPE210 but since months they fail to build.
BTW: It was nearly fine with an earlier snapshot in May 2017: WiFi on WDR3600 unstable after 2-3 Days
So, some changes caused the problem to come back.
Already filled a ticket within the bug tracker months ago but got no response on that.