Servers & Infrastructure

Practical troubleshooting paths for MSP technicians dealing with real-world support failures.

Aging and scavenging removes active host records unexpectedly

Field Summary

Aging and scavenging removes active host records unexpectedly is a AD-integrated DNS ticket where the visible symptom can be misleading. Network tickets should be split into link, IP assignment, DNS, route, VLAN/firewall policy, and application reachability. Green status on one layer does not prove the path works. The fastest path is to identify which layer changed and prove it with logs or a repeatable test.

Dynamic DNS updates fail from one server with secure update errors

Field Summary

Dynamic DNS updates fail from one server with secure update errors is a AD-integrated DNS ticket where the visible symptom can be misleading. Network tickets should be split into link, IP assignment, DNS, route, VLAN/firewall policy, and application reachability. Green status on one layer does not prove the path works. Test by IP and by name so DNS is not confused with raw connectivity.

Client resolves domain but not kerberos records for site

Field Summary

Client resolves domain but not kerberos records for site is a AD-integrated DNS ticket where the visible symptom can be misleading. Network tickets should be split into link, IP assignment, DNS, route, VLAN/firewall policy, and application reachability. Green status on one layer does not prove the path works. Test by IP and by name so DNS is not confused with raw connectivity.

AD DNS zone missing new SRV records after DC promotion

Field Summary

AD DNS zone missing new SRV records after DC promotion is a AD-integrated DNS ticket where the visible symptom can be misleading. Network tickets should be split into link, IP assignment, DNS, route, VLAN/firewall policy, and application reachability. Green status on one layer does not prove the path works. Test by IP and by name so DNS is not confused with raw connectivity.

Client pinned to referral cache after target maintenance

Field Summary

Client pinned to referral cache after target maintenance is a DFS & Namespaces ticket where the visible symptom can be misleading. Server and directory tickets need service state, event logs, DNS, authentication, replication, permissions, storage, and backup context before disruptive work. Reboots can hide evidence and create wider impact. The fastest path is to identify which layer changed and prove it with logs or a repeatable test.

DFSR conflict and deleted folder grows unexpectedly large

Field Summary

DFSR conflict and deleted folder grows unexpectedly large is a DFS & Namespaces ticket where the visible symptom can be misleading. Server and directory tickets need service state, event logs, DNS, authentication, replication, permissions, storage, and backup context before disruptive work. Reboots can hide evidence and create wider impact. The fastest path is to identify which layer changed and prove it with logs or a repeatable test.

Namespace root accessible but one folder target offline

Field Summary

Namespace root accessible but one folder target offline is a DFS & Namespaces ticket where the visible symptom can be misleading. Server and directory tickets need service state, event logs, DNS, authentication, replication, permissions, storage, and backup context before disruptive work. Reboots can hide evidence and create wider impact. The fastest path is to identify which layer changed and prove it with logs or a repeatable test.

DFSR backlog stays high after WAN restoration

Field Summary

DFSR backlog stays high after WAN restoration is a DFS & Namespaces ticket where the visible symptom can be misleading. Server and directory tickets need service state, event logs, DNS, authentication, replication, permissions, storage, and backup context before disruptive work. Reboots can hide evidence and create wider impact. The fastest path is to identify which layer changed and prove it with logs or a repeatable test.

DFS referral order ignores local site target

Field Summary

DFS referral order ignores local site target is a DFS & Namespaces ticket where the visible symptom can be misleading. Server and directory tickets need service state, event logs, DNS, authentication, replication, permissions, storage, and backup context before disruptive work. Reboots can hide evidence and create wider impact. The fastest path is to identify which layer changed and prove it with logs or a repeatable test.

Session host drains users but broker still routes new logons there

Field Summary

Session host drains users but broker still routes new logons there is a Remote Desktop Services ticket where the visible symptom can be misleading. Server and directory tickets need service state, event logs, DNS, authentication, replication, permissions, storage, and backup context before disruptive work. Reboots can hide evidence and create wider impact. The fastest path is to identify which layer changed and prove it with logs or a repeatable test.