RAX200 system tool states WAN connection good, sadly no internet connection in (W)LAN

[dntinus68]

Using the RAX200 (2019) for 3 years with the same ISP without problems (ISP = Dutch Telecom KPN with glassfiber modem, router Dutch telecom replaced by RAX200 with VLAN 6). Last months I frequently have problem with disconnecting from Internet on my clients. Only thing changed is a renovation of my kitchen. I am afraid the builders did some uncontrolled switching of power what effected/damaged my router.

A quick solutions is by switching the WAN port on my router (WAN selection - from Internet port to MultiGig-port or vice-versa), the router works again and gives internet to my clients ....for a day or two.

The system-app states WAN connection is good, but my clients states no internet connection.
i did a factory reset, installed last firmware, looked at MAC spoofing, changed cables, ….

looking at the instability, is the router “dead” or can it be fixed? Any suggestions? 
CHEERS

[plemans]

it looks like that update just came out in july. It might have just coincided with your renovations. 

Did you try downgrading the firmware a version and doing a factory reset?