The problem solved itself after a restart and I can no longer access the MikroTik router, only my own. As @joekamprad said there could not be anything cached and I still haven’t found a logical explanation for what happened. It’s a stationary computer that have always been inside my house where there have never been a MicroTik router.
I just got a little freaked out when I tried to access my routers admin page on the address 192.168.2.1 in Chromium on my newly installed Antergos system. On my network I have an Asus router, but what I find on the IP-address is a MikroTik router. There is no MikroTik router on my network. When I try to access the same exact IP-address through Firefox I end up on my real routers page.
My computer is connected with ethernet to the Asus router and there are no WiFi capabilities on the PC.
Does anyone have any idea what’s going on here?