yes, i also guess this is a problem like above ELiZ did say.
in the past, when you get another ip address, what have you done with the firewall from windows and the port forwarding of your router? did you change it there also? or not?
because i did see you had a lot of ip changes in the past. the last good known ip which did work on your comp was 81.246.239.198 - looged in at swiss servers on 30.11.2015, 21.55.
did you change something after that day? did you change from cable to wifi or vice versa?
something must have forced you computer to change the local address of your comp.
also: do you use DHCP or fix ip address at your router for internal use? i guess you do use DHCP (its a setting option on your router), correct? if so, then you did something that has changed your local ip of your computer. maybe you did instal a new tv, receiver or others?
to solve this:
1. have a look at your comp to see which ip its been used for it. open a dos box and write
ipconfig /all
then you will see your ip address at "IPv4-Adresse" -> this is your local ip
2. go to your router, login and go to the section of NAT or PortForwarding. there you will finde something simular like:
wan: 81.246.239.198
lan (or local): your ip address
starting port (UDP): 1716
ending port (UDP): 1717
but be careful. everything you do change, WRITE IT DOWN TO KNOW what you changed. to have a way back where it was before (fall back).
it this doesnt work, then it could be your windows firewall blocking the ports because of the ip change. but step by step. try above first before trying with windows firewall and let us know if the local ip did change on your comp.
Alright so I'm home and did some testing. I have never done anything like port forwarding before. I am using WIFI with my laptop since ever.
There's one thing that might be linked is the fact that I removed my SSD from my computer aproximately at the same time it started bugging, so maybe that caused a new IP? No clue if it's possible.
But I tried forwarding the ports manually and got this:
http://s16.postimg.org/mwgmnwt1x/Sans_titre.pngIt is still not working though