• My WP sites are returning an “HTTP Error 503. The service is unavailable” error whenever attempting to visit it or access the wp-admin login page. I also own the server it’s hosted from, which is Windows Server 2008 with IIS 7. Running MySQL 5.6.21

    It doesn’t appear that anything changed in the past few days, but it just suddenly stopped working. The DefaultAppPool uses NetworkService as the identity, I increased the queue length to 5000, I’ve verified the permissions are still the same as before, I’m at a complete loss as to what the problem is and I’ve been searching the net for hours trying to find solutions but I’m coming short on everything. Any suggestions or help would be appreciated.

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  • Thread Starter Ryan K

    (@techusa)

    Should also mention that I have two other sites hosted on this server that are not on WordPress and those both work just fine.

    I also pulled up log files located in C:\Windows\system32\logfiles\HTTPERR and each ones shows QueueFull as the reason.

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