Well, the last attempt at solving the problem did not work.

After leaving my computer idle for just 20 minutes, my housemates computers took over. I am getting annoyed with this little problem. Right now I have disabled both his ports on my router so I have time to find out what the hell is going on and hopefully find a solution to the problem.

I updated the firmware again to Sveasofts Alchemy. This one had the same results as the first one. So now I am trying Sveasofts Satori release. It, like the last one, promises bandwidth control and prioritisation.

I cannot upload it at the moment though, as my housemate is in, and guaranteed that if i started the update process he would try accessing the internet or something along those lines and interrupt the process killing my router.

I will post an update later once I have peace and quiet to get the firmware onto my router and to try and solve this little conundrum.