Unable to connect to server from multiple machines

I understand this could be a network issue but i have no clue how to resolve it. For many months now whenever I try to create a crew session or join a game of sea of thieves I either get a cyanbeard error or a longbeard error 100% of the time. I have not been able to play the game for months because of this. This occurs on multiple PCs on my home network but if I bring those machines to a different network I no long have the problem. I've searched the internet and these forums for any kind of solution that I could bring to my ISP but I can not find anything and every attempt at contacting support has had no help either. I've tried disabling my firewall messing with forwarding ports and ensuring UPNP is enabled but nothing changes anything. If anyone has any information on how I can resolve this or what I may need to contact my ISP about it would be very helpful. I never run into connection issues with any other games its just SOT and friends of mine using the same ISP don't have this issue playing the game so I am really at a loss for what to do. I really just wish I could play the game again.