Which device is "this laptop"? The additional test-device or is PVE installed on a laptop?my other laptop is not able to ping 192.168.1.1 (but this laptop is connected via wifi not lan)
(Okay, you answered in #20) Your test-device is a WLAN laptop. I am not sure if this is sufficient. You need a test device connected to the same network as PVE is connected to, and also by wire. Separate WLAN may have... separate behavior and network settings.