Logins are slow at the second office.
Subnets are often missing in Sites and Services so clients hit a DC over the WAN.
Try this first
- 1Add each office's subnets to the right site
- 2Bind DCs to their site
- 3Review site-link cost and schedule
- 4Validate site-aware DNS records
When to bring us in
Many offices: rethink replication topology and bandwidth budget together.
See also
- One DC or two DCs for an SMB office?Two is almost always the right answer; one DC is a single point of failure for logon, DNS and GPOs.
- Should I split FSMO roles across two DCs?For a small domain all on one DC is fine; with two DCs splitting is tidier but not required.
- How do I know my AD replication is healthy?Replication errors creep in silently; they only surface when logins or GPOs misbehave.
None of the above fits?
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