I just bought a PepWave Surf SOHO (MK3) and have an error for the WAN connection: ‘WAN failed DNS test’. The little icon in front of the WAN is colored red. At the Dashboard there is another warning at the bottom of the page:
‘Failed to receive DNS response from the health-check DNS servers for WAN. But public DNS server lookup test via the WAN passed. So please check the DNS server settings.’
I have tried different DNS servers (ISP, OpenVPS, Google) but they all fail. Sometimes the WAN icon is briefly green, but it turns red quickly again. Also tried some suggestions on these forums to alter the health check options.
I have blocked all inbound traffic in the firewal, except UDP and TCP ports 53.
Is this a known problem, and is there something I can do about it?
Also the Wifi is slow and drops sometimes, I think this has to do with the above warning?