Hallo Doso, danke für Deine Antwort. ich schicke hier mal die Einträge aus der Ereignisanzeige:
The Cluster service failed to bring clustered role 'MSDTC' completely online or offline. One or more resources may be in a failed state. This may impact the availability of the clustered role.
Cluster resource 'MSDTC-MSDTC (2)' of type 'Distributed Transaction Coordinator' in clustered role 'MSDTC' failed.
Based on the failure policies for the resource and role, the cluster service may try to bring the resource online on this node or move the group to another node of the cluster and then restart it. Check the resource and group state using Failover Cluster Manager or the Get-ClusterResource Windows PowerShell cmdlet.
Clustered role 'MSDTC' has exceeded its failover threshold. It has exhausted the configured number of failover attempts within the failover period of time allotted to it and will be left in a failed state. No additional attempts will be made to bring the role online or fail it over to another node in the cluster. Please check the events associated with the failure. After the issues causing the failure are resolved the role can be brought online manually or the cluster may attempt to bring it online again after the restart delay period.