| Event Id | 1131 |
| Source | W3SVC |
| Description | Cannot register the URL prefix http://<serverIP>/ for site <siteinstance>. Too many listening ports have been configured in HTTP.sys. The site has been deactivated. The data field contains the error number. |
| Event Information | According to Microsoft: CAUSE: This problem occurs because sufficient non-paged pool memory has not been allocated for Http.sys. Microsoft Windows Server 2003 does not include the MaxEndPoints registry setting in the HKey_Local_Machine\System\CurrentControlSet\Services\HTTP\Parameters registry key. Therefore, the physical memory is evaluated to determine the non-paged pool memory. For example, on a computer that has 64 megabytes (MB), the non-paged pool memory value is set to 16. On a computer that has 256 MB, the non-paged pool memory value is set to 64. RESOLUTION: If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk. To resolve this problem, set the MaxEndPoints registry setting to a value that is greater than the number of Web sites that are hosted by IIS. 1. Click Start, click Run, type regedit, and then click OK. 2. Locate and then click the following key in the registry: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\HTTP\Parameters 3. On the Edit menu, point to New, and then click DWORD. 4. Type MaxEndPoints, and then press ENTER. 5. On the Edit menu, click Modify. 6. Type a value that is greater than the number of Web sites that are hosted by IIS, and then click OK. |
| Reference Links | You receive an Event ID 1131 error message when you try to add a Web site |
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