Region is in the US. I set "automatic" firmware updates (set to 2am-3am) so apparently it updated itself.
I removed the DIR-2680 from service and replaced with my TP-Link (circa 2014) and it works perfectly. DIR-2680 stalls (both on the wifi and downstream to an ethernet enabled 2nd access point.
Should have Alpha (your ODM) to better testing before releasing.
Service provider: Charter/Spectrum
(was) connected: through TP-Link Archer C7 (AC1750).
My network configuration was: Cable Modem - to TP-Link direct, hub port (ethernet) to DIR-2680, hub port (ethernet) to Netgear router (11ac 2x2)
Same results by removing the TP-Link, ie. Cable Modem ethernet to DIR-2680 ethernet to Netgear AP
Modem and TP-Link are at one end of the house. I was using the DIR-2680 in the center of the house as the main router and the Netgear AP was at the other end of the house. The DIR-2680 RSSI was strong enough that I could remove the TP-Link (I got about the same RSSI from the Dlink @ 25 feet and through 3 walls as the TP-Link AC1750 @ 6 feet behind one cabinet door.
No only have 2 APs covering the house, with TP-Link as the main one. Downside is on one side of house, weak RSSI and only about 20-25mbps (vs Dlink running over 100Mbps, just not working due to stalls)