Can't connect to PfSense GUI

  • I cannot connect to my pfsense gui ( but CAN connect to my routers gui (normally, it's the other way around) so yes, it's been working fine for a few months now. I tried different browsers, but all send me to a white screen. Seems like it loads, but its just now showing anything.

    My setup:
    Centurylink modem/router runs a wired connection to my Linksys router. Linksys router is plugged into the an old PC that I installed pfsense on, runs through there, then back to Linksys router to send out wifi.

    No clue what happened, any leads?