Dongles disconnect and reconnect for no reason

Good afternoon, my office has been using virtualhere as a dongle server for many years. I just took over maintaining the system and add a few new USB hubs to the Raspberry Pi that holds the server. Currently we have 36 ports available, but only about 20 are being used and all of the client machines are running Windows 10. The modification that was made today was to replace the older USB hubs with newer, but identical hubs, but when I restarted the Raspberry Pi and virtualhere, all of my dongles will appear and then disconnect. Is there a known reason for this? I am unfamiliar with Linux operations and don't have much experience with virtualhere, but I don't understand how just replacing equipment with identical equipment can make this happen. Thanks

#2

what does syslog say?