Event ID 4227

Warning: Before making any registry changes or system change make sure you have backed up you system and registry.

The issue:

Log Name:      System
Source:        Tcpip
Date:          12/2/2013 11:52:26 AM
Event ID:      4227
Task Category: None
Level:         Warning
Keywords:      Classic
User:          N/A
Computer:      xxxxxxxx
Description:
TCP/IP failed to establish an outgoing connection because the selected local endpoint was recently used to connect to the same remote endpoint. This error typically occurs when outgoing connections are opened and closed at a high rate, causing all available local ports to be used and forcing TCP/IP to reuse a local port for an outgoing connection. To minimize the risk of data corruption, the TCP/IP standard requires a minimum time period to elapse between successive connections from a given local endpoint to a given remote endpoint.

The fix:

  • First use TCPview or netstat to view how many ports and connections are in use

Fix 1:

You can check the registry and via the command line to see the dynamic port pool size. And change it as need be.

To do it via registry key view HKLM\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\MaxUserPort and see what that value is set to. Note this key might not exist you can create it if need be. http://technet.microsoft.com/en-us/library/cc938196.aspx. To do this as command line “netsh int ipv4 show dynamicport tcp” you can see more examples at http://support.microsoft.com/kb/929851/en-us if you are running out of ports you can use the command to increase the pool or change the reg key to complete this task.

Fix 2:

This might also be caused by the connection wait delay, if you have this problem you will find lots of connections in a time_wait status in TCPview or netstat.

If this is your problem you can adjust the HKLM\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\TcpTimedWaitDelay http://technet.microsoft.com/en-us/library/cc938217.aspx to resolve this issue. Note again this key might not exist

 

Additional helpful link:

http://www.ittrainingday.com/2012/12/windows-server-tcp-port-starvation.html

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Windows User profiles

This is going to be a mixed topic about user profile management.

Note: never delete a user profile out of Documents and Settings or Users. This will only remove the profile’s data, but not its information in the registry. This will cause errors later like unknown profiles.

How to correctly remove Windows profiles

  1. Open System in Control Panel.
  2. On the Advanced tab, under User Profiles, click Settings.
  3. Under Profiles stored on this computer, click the user profile you want to delete, and then click Delete.

Automated way to remove profiles

  • Use command line tool “delprof.exe”, works great for a terminal server’s with hundreds of profiles.
  • Tool can be downloaded from Microsoft https://www.microsoft.com/en-us/download/details.aspx?id=5405
  • You can find some good scripts as well just make sure they delete the registry data for the profile as well.

How to delete profiles with “NTUSER.DAT in use

  1. Make sure the user is not logged in
  2. reboot system, if reboot did not unlock ntuser.dat move on
  3. download “User Profile Hive Cleanup Service” from Microsoft https://www.microsoft.com/en-us/download/details.aspx?id=6676
  4. install
  5. reboot
  6. ntuser.dat should no longer be in use.
  • Note: this sometimes will also clean up profiles listed as unknown
  • Note: most “unlock” utilities will not unlock this .dat file.

Windows Print queue status offline

I had a painful printer the other day that was listing its queue status as offline, after troubleshooting it to find out is was online was a big pain. I would ping the printer IP address but the queue listed as offline. So I restarted the printer spooler no help. The solution was a miss configuration in the printer port that was created by someone else.

  1. So go to the printer queue on your print server or from print management
  2. Click ports
  3. Configure port
  4. (helpful to take a screenshot of current settings) try to enable/disable SNMP status and update the protocol to see if that fixes your status.

Mine was the SNMP status it was enabled and was telling the queue it was down.

Print Server was windows 2003