We tried different ports 3268 and 3269 and got the same issue .. Didn't try any other port numbers .. ... View more

Yes recieved word from Meraki this morning approx 8:30 GMT that the issue has been resolved . All of our users can Authenticate and all Access points can communicate with Global Catalog again. ... View more

User permissions for the Active Directory account does not need to be anything special I believe. Ours is just a member of domain users   I am also experiencing this issue but we have a call logged with Meraki as it appears to be a wider issue and being looked at by some internal team. ... View more