Well, if I ever decide to form a 90s psychedelic/acid rock band, I know who's making our album cover.

You okay, OP?

cardioZOMBIE

Thanks for the suggestions; I may try the reinstall.

We also have a list of solutions for various connectivity issues, but I would suggest making sure that your Windows Clock is synchronized correctly:
https://support.rocketleague.com/hc/en-us/articles/360015493454-How-Do-I-Sync-my-Windows-Clock-