Event ID - 603

Event Id603
SourceMicrosoft-Windows-ADFS
DescriptionDuring processing of web.config section '%1', the required parameter '%2' was not found. Section: %1 Parameter: %2 The Federation Service or the Federation Service Proxy will not be able to start until this configuration parameter is corrected. User Action Add the required parameter.
Event Information According to Microsoft :

Cause :

This event is logged when During processing of web.config section, the required parameter was not found.

Resolution :

Review the configuration of the Federation Service

Determine which required parameter is missing.

To perform this procedure, you must be a member of the local Administrators group, or you must have been delegated the appropriate authority.

To determine which required parameter is missing:
  1. Open the Active Directory Federation Services snap-in.
  2. Right-click the Federation Service, and then click Properties .
  3. On the General tab, do one of the following:
  • If the trust policy location is missing, add the proper path for the trust policy file.
  • If the token-signing certificate is missing, click Select , and then select a certificate.
  • If the event is on the federation server proxy and a client authentication certificate is missing, click Select , and then select a certificate.
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.
Reference LinksEvent ID 603 from Source Microsoft-Windows-ADFS

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