I get the error message to check the secret on the computer, which is the same as the one displayed in iOS. Seen this problem some time ago, but not in a recent build.
It corrected itself after a generated a new secret and entered it in iOS.
Same problem, same solution.
But - the non beta versions (and previous builds) work.
Thanks for the reports, folks.
Same here... problems startet with B50 (or B49), and WiFi sync also didn't work with recent B52. I created a new secret a couple of times, after the 10th attempt it was working. There are/were no problem with the latest stable release 4.3.2
I'll bring this one up at the team meeting today and see what changes have been made to the Wi-Fi syncing code.
Good news folks, thanks to your reports we found the issue and fixed it in the latest beta. We appreciate you keeping us on our toes here!