Issue 1 - WhatsApp not linking laptop remotely
There was an issue in where after updating/reinstalling WhatsApp, someone working from home was not able to login/link their laptop via QR code, with someone with the physical phone to scan in the office.
Resolution
There is a short 10-15 second timer on the WhatsApp QR code, and after expiry it will ask to generate a new one. The user was sending screenshots which were not fast enough and linking the expired QR code produced an error.
This will need to be done over a Teams call, where the remote user share their screen, so the in-office team mate can scan in real time.
Issue 2 - Messages are not syncing after a reinstall/ re-link
There was an issue in where after updating/reinstalling WhatsApp, a couple users on the same linked WhatsApp phone did not receive new messages.
Resolution
The physical phone was on Do not Disturb. The resolution was to:
1. Disable DND on the physical phone in the office
2. Remove the affected user's devices on the physical laptop
3. In a call with the remote user, or if user is in the office, they will need to relink the Laptop via QR code within the Linked Devices section on the phone app.
Reference