hello,I watched the video you shared about the Cisco Desk Hub and thought it was great, so I purchased the same device from eBay. But now I have encountered a problem. During the process of using Webex, the device will restart repeatedly. After that, I tried to update the device's firmware version to the latest, but I do not have permission to download it. Can you provide me with the latest firmware? give to me? Thank you so much!