Solved Can't connect to server anymore

Hi guys,
After playing for a very long time on the servers, i suddenly can't connect anymore. So for the sake of testing, i tried connecting using a VPN and that does work.
Could it be that my IP is blocked for some reason?

Thanks

--- Double Post Merged, Sep 16, 2018, Original Post Date: Sep 16, 2018 ---

Suddenly works again after 3 days. No IP changes. Strange.

--- Double Post Merged, Sep 16, 2018 ---

and the problem is back

 

Hi Gix,
Sorry for the double posts. Good to know that my IP isn't banned. Must be a ISP thing for sure then since it works fine with a VPN.
Diablo starts up just fine with -skiptobnet, when trying to connect it says Connecting to the fastest server... and after a while it says Unable to Connect to Battle.net

I've tried unplugging my modem for a while to get a new IP but that didn't work either. It's very strange because i've been able to play for months without any issues. The gateway hasn't changed either.

edit:

I've asked my ISP for some advice, they should answer within a few hours.

edit:

It appears to be my router blocking things. When i use a cable without a router it works just fine.

edit:

Turning my router on and off was enough to fix it... i feel dumb.