Brand new GS308v3. I have RCN as my ISP, an Aris DG2470 modem which plugs directly into a TP Link AC3200, everything works fine up until this point. The second I plug the GS308v3 into the back of the router my WiFi breaks and I cannot get any connectivity out of any of the open router ports nor from the open ports on the switch (despite green lit ports). I can, however, see the router's SSIDs and can connect to them but with no internet. Any ideas on how to fix? Setting on router maybe? Please help.