@TP-Link Thank you for answering! The router was purchased in 2021/08 in Germany. Connected are beteween 10 to 12 devices, about 9 to 10 are connected to the 2.4 GHz WLAN (most of the time not all...

Dear tp-link-team and forum members, the system I am using is an Archer VR300 v1 00000000 recently updated to 1.4.0 0.8.0 v009c.0 Build 210831 Rel.77362n via online update. Since the update I...