| Previous | Next |
| ERROR_DS_DOMAIN_VERSION_TOO_LOW | ERROR_DS_LOW_DSA_VERSION |
ERROR_DS_INCOMPATIBLE_VERSION
AD DS found a general functional-level compatibility mismatch
This code is the broad compatibility result when the directory-service build cannot operate with the domain or forest behavior level it discovered. Functional levels determine directory capabilities and constrain which DC versions can participate; they are not equivalent to Windows client compatibility or protocol-version settings.
Record the forest mode, target domain mode, candidate server version, and its deployment prerequisite output. Those values identify whether the mismatch is on the too-high or too-low side and whether the forest, domain, or AD LDS configuration set is involved. Resolve the specific compatibility relationship instead of changing DNS, replication schedules, or LDAP security settings that do not alter directory behavior versions.
What to inspect
- Capture forest mode, domain mode, and candidate Windows Server version together.
- Review the more specific prerequisite or event status that preceded this code.
- Use supported functional-level and server-upgrade paths to resolve the mismatch.
References
- Microsoft: AD DS functional levels
- MS-ADTS: DC functional level
- Microsoft: troubleshoot domain controller deployment
Looking for a different code? Search another status or error code.