This error indicates that the request has timed out. This may be the result of a registration taking longer than the allowed duration, or the failure to receive a response from the server during a step in the pairing process.
Please follow these instructions in order to resolve the issue:
1. Wait 2 minutes and then proceed to pair once again. This may allow enough time for pending requests to complete.
2. If the issue persists - reboot the computer and try to pair. This may ensure the computer did not reach an error state.
Why might I see error code 1420003 on the Workstation client when pairing my mobile device?