It looks like the latest firmware versions for the Altalinks has changed the version of Convenience Authentication to 1.1.0 which is not supported by Pharos iMFP. I found the following in the logs on the iMFP server.
2019-01-08 14:17:14.9894 Debug SendGetInterfaceVersionRequest Convenience Authentication version: 1.1.0
2019-01-08 14:17:14.9894 Error <InitAuthenticationSession>b__1 Device uses unsupported Convenience Authentication service version. Authentication Request will be ignored.
It appears to have changed with the 101 version of software. We are going to revert back to the latest 100 version to confirm that is where the change was. I have confirmed that other machines in our fleet are still at CA version 1.0.0.
Wondering if Pharos is aware of this?