BFH Port 3659 Error

When I try to join a server on Battlefield Hardline I get the following error: "Game disconnected: Client closed down connection. Check your network connection and make sure that port 3659 (UDP) is open." I went to my router settings and made sure that port 3659 was open but after that when I try joining a server I still get the same error. I have checked it multiple times and I have done it all correctly. The game was connecting fine yesterday but haven't got into a game all day today.

I have also tried doing other things such as:

- Flushing DNS Cache

- Allowing BFH Through Firewall & Anti-Virus

- Upgrading Video Card Drivers

but I still get the same error.

I use a TalkTalk Super Router so if anyone uses the same router and can help to make sure that I've opened the port correctly that'd be great. I'll also attach a screenshot to show what I have done.