SCCM Connection issues with Error 1909
Problem
We where seeing a 1909 error on 2 of our sites. In the Sender.log we were getting the following error:
Site XXX added to list of busy sites.
No (more) send requests found to process.
Waiting for new/rescheduled send requests, Maximum Sleep Time = 60 minutes
There is no existing connection, Win32 error = 1909
There is no existing connection, Win32 error = 1909
Error during connection to \\SCCMServername\SMS_Site (1909).
Operation is retryable.
Cannot connect to server SCCMServername at remote site XXX, won't try send requests going to site EN1 for an hour or until there are no active send requests.
There is no existing connection, Win32 error = 1909
There is no existing connection, Win32 error = 1909
Error during connection to \\SCCMServername\SMS_Site (1909).
Operation is retryable. SMS_LAN_SENDER
Sleeping for 1 minutes before retrying
Error code 1909 means:
The referenced account is currently locked out and may not be logged on to.
Source: Windows
The problem was that we where not seeing any account lockout.
This error was caused because the Enterprise Client – Member Server Baseline template was applied to the child sites but it was not applied to the Central site.
One of the setting that is changed by the template cause this error.
The setting Network security: Lan Manager authentication level default is version 1 “Send NTLM response only”. The template changes it to “Send NTLMv2 response only”.
Version 2 does not accept authentication from version 1 so after a few tries to connect, the system was locking out the account. Then the policy was unlocking the account and then the next time SCCM tried to connect again it would lock out again (endless lock and unlock loop). If you were not watching the accounts you would never even see that the lockout was occurring so it looked like we were receiving a false 1909 error.
Solution
Set all of the servers to the same setting. Either reset all servers to default or change all the servers to Send NTLMv2 response only.
More Info on Setting
More info on the setting can be found here http://support.microsoft.com/kb/823659