My router is a Thomson Speedtouch: ST585v6sl.
And what exactly do that mean, that it is out of date?
The actual router is out of date?
Go to your Internet Service Provider support site and ask if you can get an update on your firmware. I wouldn't say the router is out of date it-self but some features are out of date for sure.
And if this were true, would it not cause more problems than just this?
I shall have a test of opening those ports, but as has happened everytime I've ever tried to open a port for anygame, including Blockland, Minecraft and a few others, I've never had any success.
The router itself in it's settings will tell me that the ports I want are opened. However, whenever I have tested these ports by accessing them with a game, as in, letting people try to join my Blockland server, they have never been able to connect or usually even find my server.
Apparantly the ports are still closed even though the router insists that they have been opened.
Try disabling norton entirely and see if that does anything at all.
Should I give my server a test now?
Go for it.