It seems that my router (Mikrotik RB2011UiAS) is somehow hijacking DNS request that have the subdomain "router" in them and forwards them to itself.
router.google.com, router.amazon.com, you name it, even things like router11.google.com, I always end up at the web interface of my router (192.168.0.1).
It's definitely not a computer configuration issue, I'm observing the same problem from several different devices, including mobile.
I don't really know how to correct this. Mikrotik is just acting as a DNS forwarder, it receives DNS server entries from the internet provider through DHCP, so there are no custom DNS settings. And I think it's safe to say that the servers of my provider are not responsible for the issue.
Any idea what I can do about this?