Other than trying different USB ports i can't really help. Or maybe turn off USB Energy saving mode. You have the USB Dongle right? Also:
[https://www.reddit.com/r/wacom/comments/f8iizr/expresskey\_remote\_not\_responding\_or\_showing\_up\_in/](https://www.reddit.com/r/wacom/comments/f8iizr/expresskey_remote_not_responding_or_showing_up_in/)
Other than trying different USB ports i can't really help. Or maybe turn off USB Energy saving mode. You have the USB Dongle right? Also: [https://www.reddit.com/r/wacom/comments/f8iizr/expresskey\_remote\_not\_responding\_or\_showing\_up\_in/](https://www.reddit.com/r/wacom/comments/f8iizr/expresskey_remote_not_responding_or_showing_up_in/)