I am syncing the same TapForms document between two Macs, using Nearby, both on High Sierra with TapForms 5.2.8. It was working at first, but now I keep getting an SSL error. I have checked to make sure the password is correct, and have tried removing the second Mac and adding it again. It still will not sync, and gets an error. Any ideas?
One thing you can try is search the Keychain Access application for “peer-sync” and delete any entries you find there. Do that on both Macs. Then re-launch Tap Forms and see if that solves the problem with the SSL connection.