I have two Surf SOHO MK3s running 8.3.0, both exhibiting the same bug.
Most of the time I run with the AP disabled. I have one SSID, on a VLAN. The last time I needed to use the AP, as soon as a client connected to the SSID, the WAN went down for all clients. To get the WAN working again I either need to reboot the device, or disable and then re-enable the WAN.
There is no indication on the management portal or the Event Log that there’s any problem. The WAN shows green in the dashboard. However, if I try applying additional changes (probably anywhere in the management portal), the WAN starts displaying “Checking connectivity” indefinitely until I reboot or refresh the WAN.
If I change the SSID to be on the Private network rather than a VLAN, this problem disappears.
I suspect this problem arose after a firmware update, although since I only need the AP occasionally, I can’t be sure about that.
Another (perhaps unrelated) oddity is that when I Apply Changes to my SSID it says “Applying changes…” indefinitely (even when the AP is disabled and the WAN is working). The changes are being correctly applied, however.
Any ideas?