401 errors – These are generally access related.
401;1 Unauthorized access because the logon has failed
401;2 Unauthorized access because the logon has failed due to the server configuration
401;3 Unauthorized access because of an Access Control List (ACL) entry
401;4 Unauthorized access because an IIS filter is blocking access
401;5 Unauthorized access because of an ISAPI or CGI application
403 errors – These are security related also.
403;1 Forbidden because execute access isn’t allowed
403;2 Forbidden because read access isn’t allowed
403;3 Forbidden because write access isn’t allowed
403;4 Forbidden because SSL use is required
403;5 Forbidden because 128 bit SSL use is required
403;6 Forbidden because the IP address was rejected
403;7 Forbidden because a client certificate is required
403;8 Forbidden because access to the site is denied
403;9 Forbidden because too many users are presently attached to the site
403;10 Forbidden because of an invalid configuration
403;11 Forbidden because of an invalid password
403;12 Forbidden because the Web site requires a valid client certificate
403;13 Forbidden because the client certificate was revoked
403;14 Forbidden because the directory listing is denied
403;15 Forbidden because client access license count was exceeded
403;16 Forbidden because the client access certificate is invalid or untrusted
403;17 Forbidden because the client access certificate is expired or is not yet valid
424 Errors
424 errors normally show up when an application protection level is set too high. To cure this on your IIS server goto the web application, select the Properties Virtual Directory tab & set the Application Protection to Low (IIS Process).
500 Error
This is a generic internal error on the IIS server. A common cause of this error in a Sharepoint environment is that Check That File Exists check box in the Internet Service Manager is checked so check here first!
503 Error
This means a service has stopped running or hung, check in Event Viewer on the server to see which one is causing the problem.
401;1 Unauthorized access because the logon has failed
401;2 Unauthorized access because the logon has failed due to the server configuration
401;3 Unauthorized access because of an Access Control List (ACL) entry
401;4 Unauthorized access because an IIS filter is blocking access
401;5 Unauthorized access because of an ISAPI or CGI application
403 errors – These are security related also.
403;1 Forbidden because execute access isn’t allowed
403;2 Forbidden because read access isn’t allowed
403;3 Forbidden because write access isn’t allowed
403;4 Forbidden because SSL use is required
403;5 Forbidden because 128 bit SSL use is required
403;6 Forbidden because the IP address was rejected
403;7 Forbidden because a client certificate is required
403;8 Forbidden because access to the site is denied
403;9 Forbidden because too many users are presently attached to the site
403;10 Forbidden because of an invalid configuration
403;11 Forbidden because of an invalid password
403;12 Forbidden because the Web site requires a valid client certificate
403;13 Forbidden because the client certificate was revoked
403;14 Forbidden because the directory listing is denied
403;15 Forbidden because client access license count was exceeded
403;16 Forbidden because the client access certificate is invalid or untrusted
403;17 Forbidden because the client access certificate is expired or is not yet valid
424 Errors
424 errors normally show up when an application protection level is set too high. To cure this on your IIS server goto the web application, select the Properties Virtual Directory tab & set the Application Protection to Low (IIS Process).
500 Error
This is a generic internal error on the IIS server. A common cause of this error in a Sharepoint environment is that Check That File Exists check box in the Internet Service Manager is checked so check here first!
503 Error
This means a service has stopped running or hung, check in Event Viewer on the server to see which one is causing the problem.
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