I have just received a new Balance 210 & updated the firmware to 6.1.0. All good except for the “WAN failed DNS test” that regularly occurs on BOTH WAN 1 & 2 every 2 minutes. I have pointed the Health check ip’s to Google DNS but to no avail. I notice a couple of other folk here have had similar but more specific issues, none of their resolutions relate to this problem on my unit. Does anyone have any clues ? thanks in advance.