CheckMK Agent not reachable on Windows Server 2016 with Direct Access Role

Hi there,

we have a problem on our DirectAccess Servers, the Agent ist just noch reachable, found some guys in the internet with the same behaviour:

I want to avoid the workaround posted there. We can confirm the same

  • Firewall Port is open
  • Tried explicit route entry
  • we can confirm, adding additional IPv4 address on the same adapter which facing internal network makes the checkmk reachable on this address

Dont know how to fix this, any ideas?

Kind regards