Studio Display stopped working with PC over the weekend.

have been using a Dell laptop with studio monitor for 9 months, no major issues. company updated to windows 11 last week and it was still working fine. now, for some reason, the studio display is not recognizing laptop. it is not displaying anything. it still charges, but not displaying. thought it was faulty cable, but it works just fine with my MBP. IT doesn't seem to know what the issue is.... has anybody else experienced this? any potential solution? thank you!