Recently, we get the report that there are many people who annoyed and frustrated with HTTP IIS7 Error 503: The Service is Unavailable. What is IIS7 Error 503? Do you ever get that problem? There are many people to searching out what the methods to fix IIS7 Error 503. Or you are searching out the methods to fix IIS7 Error 503 also? If you are experiencing HTTP IIS7 Error 503, do not be worry because it is not serious problem and you can fix it. Based on that case, in this article we will share you the method to fix IIS7 Error 503: The Service is Unavailable. But before we explain about that, we suggest you to know what the reason or the cause which make IIS7 Error 503 occur.
HTTP IIS7 Error 503 is the error which is generated by the service of WAS (formerly W3SVC) that is responsible to create IIS worker processes to handle the incoming http requests. Once WAS or W3SVC fails to create a worker process, so it will make this error occur. There are many reasons why WAS fail to begin an IIS worker process. Those reasons are the invalid application pool configuration, incorrect application pool identity settings which make the failure of creating the process, the bad IIS configuration which causes the worker process to fail to initialize, or a process crash due to application logic.
Well, we will back to explain about the method to fix HTTP IIS7 Error 503: The Service is Unavailable. In the text below, you can see its method step by step.
Step 1: Check whether your application pool is stopped.
At the first step, you have to check if your application pool is stopped or not. If WAS or W3SVC fails to create a worker process frequently, so it can make stops the application pool. This prevents the application crashes from taking down the machine by entering into a start. By default, Rapid Fail Protection is set at five times in five minutes. If the application pool which contains your application has stopped, so all requests to applications in it will make error 503.
Step 2: Check event log.
In this step you have to check event log. When you find that IIS fails to initialize and WAS cannot create the worker process, so it will log an event to the “Application” or “System” windows event log. You have to view the system log in event viewer to find the error events. Frequently, an event is logged in the System log if the application pool fails to start.
Step 3: Fix the error condition.
In this step, you have to fix the error condition as indicated by the event log errors. You should be able to restart the application pool and try it again.
Step 4: Restart application pool.
In the last step, you can restart the application pool and try the request again. Do not forget to replace “DefaultAppPool” with the name of your application pool. Finally, HTTP IIS7 error is fixed.
Well, that explanation above is the method to fix HTTP IIS7 Error 503: The Service is Unavailable. If you are get that problem you can fix it by using its method step by step. We hope after you fix error 503 by its method, your problem can be solved.