What is the status of the Vive wireless app. The boot process is launch Vive Wireless App, ensure it's "ready", and then launch SteamVR.
Do you still have your linkbox plugged into the PC? If you have the wired linkbox plugged in as the same time as the wireless adapter, it will prioritize the linkbox (if a video cable is plugged into it) and attempt to launch SteamVR in wired mode.
To reach Viveport's customer service team, email email@example.com
To connect with a live support agent for hardware support, go to www.vive.com/support, click on "contact us" in the top righthand corner, and then opt to speak with a Live Chat agent David R
Technical Specialist - San Francisco, CA; Monday-Friday
If it's an Intel processor, there may be some hope for you, though I can't help you with this problem.
If you have an AMD processor, I'm here to tell you it will never, ever, ever work. Ever. Your options are to refund your purchase with HTC, or hold onto the Vive Wireless and wait, and pray for an eventual fix.
It's been six months of waiting for me so far, and many, many others - so I do not recommend the waiting.