97 solutions found, page 1 of 5
0XC00002AB This Active Directory error means you're trying to modify or create an object with a class that doesn't match its schema. It's usually a replication o...
0X00002331 This error means your DNS server got a request for a zone it doesn't own. Usually a delegation issue or stale forwarder. Here's the real fix....
0X00002153 Active Directory won't start after a failed restore or boot into DS Repair Mode. Usually a database corruption or missing system state files....
0X000020E5 This error hits when a domain controller can't find a naming context in its cached directory partition list. Usually a replication delay or stale cach...
0X00000A73 This error pops up when you try to create a DFS namespace on a server that's not running the DFS Management role. The fix is to install the role....
0X000020ED This error hits when AD can't allocate memory for the hierarchy table during a domain controller promotion or replication. It's almost always a memory...
0X00002173 Your domain controller can't replicate because the forest schema is too high. This fix gets you back online fast....
0X000020A9 This error means Active Directory already has a dead or alive object with the same name. Here's how to find and remove it fast....
0X801F0010 This error means a filter driver is stuck attached to a volume. You'll see it when trying to unmount a drive or remove software. Here's how to fix it....
FATAL: remaining connection slots are reserved for non-replication superuser con Your app exhausted all available database connections. The quick fix is killing idle connections. Here's why it happens and how to stop it....
0X00002076 This error means you're trying to read or write an attribute that isn't defined on the object schema. The fix is usually a schema update or a correcte...
0XC0000193 Logins fail with this error when a domain or local user account has passed its expiration date. The fix is to extend or remove the expiration in Activ...
0X0000216A This error means the SPN couldn't be built because the host name has a bad format. The fix is to check the servicePrincipalName attribute and fix the ...
0X000006EB This error pops up when an RPC call tries to pass or return a value that can't be represented as a floating-point number. The culprit is almost always...
0X00002100 This error shows up when trying to add a domain controller that’s already referenced in Active Directory. Usually caused by a lingering server object ...
0X0000077F This error means Windows can't find a site name for your machine. Usually a DNS or registry issue. Here's what I've seen fix it in real small business...
0XC00002A2 This error means a bad attribute value snuck into AD. Usually from a botched schema extension or a sync tool like Azure AD Connect....
0X000020A2 Active Directory can't apply permissions because the security descriptor is corrupt. Fix by resetting the SD using ADSI Edit or repadmin....
0X000020E6 Active Directory can't read a child object. Usually a replication conflict or corrupted DC. I'll show you the three most common causes and how to fix ...
0X00002198 This error means Active Directory can't process a logon script. Usually it's a broken script path or permission issue. Here's how to fix it fast....