| Event Id | 120 |
| Source | Microsoft-Windows-ADFS |
| Description | The AD FS Web Agent for Windows NT token-based applications encountered a serious error. Memory allocation failed. Until memory can be allocated, users will be unable to access protected resources. |
| Event Information | According to Microsoft : Cause : This event is logged when the AD FS Web Agent for Windows NT token-based applications encountered a serious error. Resolution : Check memory usage on the server Check memory usage on the server. To perform this procedure, you must be a member of the local Users, Power Users, Backup Operators, or Administrators group, or you must have been delegated the appropriate authority. To check memory usage on the Web server: 1.On the Web server, click Start, click Run, type taskmgr, and then click OK. 2.In the Windows Task Manager dialog box, click the Performance tab. 3.Under Physical Memory, check the Web server’s memory usage. Verify : Verify that you can access the Active Directory Federation Services (AD FS)-enabled application from a client browser and that the resource can be accessed with the appropriate authorization. If you cannot access the application successfully, verify that the Windows token-based agent is configured with correct URL values and that all configuration parameters contain valid values. To perform this procedure, you must be a member of the local Administrators group, or you must have been delegated the appropriate authority. To verify that the Windows token-based agent is configured with correct values: 1.Click Start, point to Administrative Tools, and then click Internet Information Services (IIS) Manager. 2.In the console tree, click YourComputerName(local computer). 3.In the console tree, double-click Sites, and then click YourWebSiteName. 4.In the center pane, double-click Authentication, highlight AD FS Windows Token-Based Agent, and then in the Actions pane click Edit. 5.In the AD FS Windows Token-Based Agent dialog box, confirm that the Enable AD FS Web Agent check box is selected. 6.Make sure that the following values are valid, and then click OK. Cookie path Cookie domain Return URL. |
| Reference Links | Event ID 120 from Source Microsoft-Windows-ADFS |
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