Nearly two months after the device's release, HTC stil hasn't figured out how to get it to function properly with all AMD Ryzen-based systems. Therefore, HTC is offering user a refund. The company says they're still investigating the issue, but this will reportedly "take time":
HTC acknowledged that it is “looking into multiple reports of Ryzen incompatibility with the Vive Wireless Adapter,” but the company doesn’t have an immediate solution. HTC said it believes the issue is isolated to “a subset of Ryzen-based PCs” and it is working with “multiple component manufacturers to identify the root cause.”
HTC said that the investigation would “take time.” [S]tarting November 19, the company will accept returns from anyone with a Ryzen-based PC who’s having problems with the Vive Wireless Adapter. HTC will honor returns for purchases from vive.com or any of HTC’s retail partners.
To initiate a return, contact HTC Vive Custom Support via email at email@example.com. HTC said a representative will then contact you within one business day with the next steps. You will need to provide proof of purchase for your Vive Wireless Adapter, and the Vive representative will need to verify that you have a Ryzen-based PC.
Via: Tom's Hardware