help with 1x2 cant grid

[DaddyGordon 0]

server was running fine except the map wasn't working so i removed the link in servergrid file and the map works now but i cant grid into b1 when trying to grid it reloads back to the home grid A1. I had read about the ports on another post and double checked nothing changed and everyhing there was good but i dont know what i am missing. Any help would be appreciated.