Clients stop communicating with the SEPM after replacing the sylink or after re-deploying the client install package. Sylink monitor logs show HTTP 401 errors and IIS logs show 401.1 errors.
Clients lose the green dot and stop communicating with the manager. Dropping the sylink or re-deploying the client package does not restore communications.
The following entries are seen in the Sylink logs:
The following entries are seen in the IIS logs:
The issue can occur if anonymous access is configured in IIS and the anonymous access account password is not same as the actual information stored in the local user database or in Active Directory.
If the SEPM is on a Domain:
If the SEPM is in a Workgroup