TVDB agent not working following library move



my TV library used to live on a Windows machine using TVDB as the agent. Over the weekend I moved my media on to a new server running Ubuntu. When I create the TV shows library if I set the agent to TVDB it says your changes could not be saved. However if I pick the local media server agent the library creates successfully. The problem with this is it doesn't download the cover art for each show, can anybody tell me what I might be doing wrong when trying to use TVDB?



firewall/add aware blocking url with "banner" in it that thetvdb uses.