@Chiefian, similar error messages are typically associated with a bum bluetooth driver; the fact that it is consistent across multiple PCs a a bit concerning.
Have you tried reinstalling the Vive drivers on a system? You can uninstall them by unplugging the linkbox, navigating to SteamVR>Settings>Developer and clicking "Remove all SteamVR USB Devices" followed by a system reboot.
Thanks for posting so quickly! What I found, much to my dismay was this was user error in the end. The cable on that is plugged in on the top of the Pro had come loose, either partially or fully. Once I unplugged that and plugged it back in again firmly it worked straight away.