Applying again made it go away from failed, nonetheless the names still do not resolve. Does the router need to be rebooted as well?

  @Tournas 

 

sometimes yes

  @GRL 

 

unfortunately it did not work. I am fairly confident the feature stopped working in the latest update. What is more, routing policies do not work anymore either. I will find the right place in the forum to notify tp link. 

  @Tournas 

 

On the early v6 builds, i did find a way to completely resolve it but its a bit of a pain

 

On the global dashboard, copy the site and call it like "zzzTest" 

 

Then, move the gateway to the copied site.  Once it finishes adopting and configuring there, you can move it back and all the failures should permenantly go away

 

Note - this will reset all the Port PVIDs on the gateway if you have set custom ones

  @GRL 

 

I followed the recommendation, which must have been useful somehow because in the network topology I got my failover WAN visible which wasnt before (see attached). I did get a cnfiguration error about LAN DNS again when tried to reenable an entry. I also still have no working policy routing (nor LAN DNS)..