You are right as looking at the German site i see the firmware you have is the current version. The only suggestion I could make would be to perform a factory reset and set up again from scratch....

My recently purchased AC2800 (VR2800) has the following: Firmware Version: 0.2.0 0.9.1 v006c.0 Build 170110 Rel.33619n Hardware version: Archer VR2800 v1 00000000 And when I check in the Advanced >...