Okay, updated my main router password to meet the new password requirements and tried again to update the node. Followed the recommended steps: update firmware, disconnect node, reconnect node, reconfigure mesh related parameters on main router (GNP sharing and client binding for me). So far, clients are happy.Tried and failed upgrade the node with the released version. Even with unpair, WPS reset, re-pair procedure. Clients were not happy. Reverted back to beta 2, and all working again. I'll monitor the thread to see if there are similar issues/suggestions or if (more likely) this is PEBKAC. I do know my main router is NOT compliant with the new password rules. Try this next?