@miniature-plumber-58921 I've been using 1450 for my windows clients at the suggestion of @jolly-london-20127 , I think it was. Seemingly working well. Also make sure you have firewall rules as per the powershell command in the docs. I edited for my whole Netmaker range instead of a single IP. Sometimes Windows clients need a couple of pulls, and a checkin doesn't hurt for good measure. They used to need rebooting on earlier client versions, but that has been addressed now for a few versions. Only other thing I can suggest checking again is if you have multiple machines behind one NAT then you need to forward to different ports, check both router and UI, or use UDP hole punching.