UR24C lit then switch off

Hi everybody,
All was OK but yesterday my UR24C showed weakness signs (bought 3 months ago). The USB light flashes when plugged on USB3 as usual, then the power light turns on but both switch off after a few seconds. The device is not available and nothing works… ! Where does it come from ? The sound card or the computer USB3 ? (I bought the computer 3 months ago as well !) Thanks

It happened ysterday for the first time then it worked again. This morning nothing worked until … it worked but I still don’t know why and how it worked again !

Have you tried another USB port?

Thank you for answer, actually it was a conflict between the sound card and one or two softwares (Note Worthy Composer and/or Musescore).