Hi! Hoping you can help my very sad Son 
Easy situation is - bought our P1S a little more than a year ago. We have a computer each and we both successfully linked to the computer and have printed our files. I think we both have different Bambu Lab accounts.
Around a few weeks ago, he may have updated his bambu studio but for some reason he is no longer connected to the printer at home
We cannot get a PIN code, as it seems I am already logged in, and I cant select a region and get a PIN code that way.
We tried the access code method, and this is where we ended up:
So it seems the printer has already been bound, but not sure how to get around that.
The printer is not on LAN only mode - do i need to toggle this on?
I suppose the difficulty is that I am still connected whilst my son is not, so it can be a hard connection issue, as I am still connected?
We also uninstalled Bambu Studio on his computer, reinstalled and it says printer is still bound.
I saw some others where a factory rest was done, however for obvious reasons we would like to leave this to last resort.
Many thanks!!