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503.2
Concurrent request limit exceeded
Description
Too many actions are occurring on the server at the same time, so your request was refused. It may be the server configuration or server hardware is too limited for the number of activities occurring.
Occurrences
Frequency is relative to other Internet warnings and errors.
Solutions and Fixes
This issue can only be fixed by the web site owner.
Undefined solution - please let the webmaster know about this issue. [later_time2
cached-13]
Solution 2 of 2 - Notify Webmaster
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You might notify the webmaster about the issue. Include the error number and the address (URL) where the error occurred along with any other relevant details.
Many sites use an email address in the form webmaster@sitename.com where you replace sitename.com with the web sites address (don't include a www). Keep in mind with the amount of spam, they may use a different address and/or it might get ignored. Check the websites' contact information to get reliable contact information.
Official Explanation
The appConcurrentRequestLimit property is set to a value that is lower than the current number of concurrent requests. IIS 7.0 does not allow more concurrent requests than the value of the appConcurrentRequestLimit property.
"503.2 - Concurrent request limit exceeded" is only supported by Microsoft IIS (Internet Information Services) web server version 7 and later.
The five hundred series of errors indicate something is wrong at the server and it is unable to complete the action.
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