random disconnects on multiple computers

I get random disconnects from both of my other computers connected to my main via a Nighthawk router wired all the way.

Not sure if this is a firewall thing or a router thing. is there any way to troubleshoot? I have to relaunch the whole team to reload and make it work for a minute or so then a random client will show disconnected.

Any thoughts?

for whatever reason just having the uplink name only in the computer tab on isboxer toolbox wasnt enough. it would launch and work for a minute, but once I put the actual local ip address of the computer it works fine and doesn't disconnect. Its annoying because once I reset the IP changes. I guess I could set it to staic but I have had bad luck with that.

It has always been sketchy but lately its just rampant and random disconnects for me