@DecoDzUser Hi, my problem was seemingly caused by my local (fixed fibre) ISP. It seems that they block the external ntp requests (haven't yet clarified the reasoning for this) and are just providing...

@TP-Link with ntp automatic, no sync at all. I have tried several ntp sources, currently pool.ntp.org Yes, with connection to different network (e. g. phone wifi hotspot), the auto sync is fine.

@TP-Link Hi, 1.Yes, both my win10 PCs. Laptop with wifi connection and desktop PC with fixed Ethernet connection 2.around max 30 seconds (manually set) 3.Yes, deco time is correct 4.No parental...

@DecoDzUser I have exactly the same problem (Deco M4). Is there any solution on this yet?