How do I access the router config when in repeater?

[zerorhythm]

did you try logging into your main router since that router is set as a repeater you should be able to see the repeater ip and mac address in your router lan info along with all the computers that are logged into it.

you can also try connecting to the lan port and make sure you are far away from the main router and entering 192.168.1.1 if it's static so it won't log you into the main.