Error "Service Unavailable" after installing Notification Server.
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Error "Service Unavailable" after installing Notification Server.


Article ID: 176536


Updated On:


IT Management Suite


I am getting "Service Unavailable" after installing Notifciation Server.

Event Type: Error
Event Source: W3SVC-WP
Event Category: None
Event ID: 2269
User: N/A
Computer: ServerName
Description: The worker process failed to initialize the http.sys communication or the w3svc communication layer and therefore could not be started. The data field contains the error number.


The worker process is configured to use an identity that is different from Local System.

The Everyone group and the User group do not have the Bypass Traverse Checking user right. By default, the Everyone group and the User group have this user right.


  1. Click Start, click Run, type 'gpedit.msc', and then click OK. 
  2. On the tree (left hand side) go to 'Computer Configuration > Windows Settings > Security Settings > Local Policies > User Rights Assignment'.
  3. Right-click on 'Bypass traverse checking' and select 'Properties'. 
  4. Click Add User or Group.
  5. Type 'Users; Everyone', and then click OK. If you receive a message that an object named "Users" cannot be found, click 'Object Types', click to select the Groups check box, and then click OK two times.
  6. Start the worker process in IIS.

See also Microsoft Knowledge base fro more information:

Applies To
Notification Server 6.0
Recovery Server 6.x