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<p>You need to open IIS and under back-end website check the bindings. It should have a valid certificate binded or you can also set the same cert which is set on front-end default website.</p><p><br></p><p>Also verify the user from which u logged on needs to have organisation management role permission.</p>
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You need to open IIS and under back-end website check the bindings. It should have a valid certificate binded or you can also set the same cert which is set on front-end default website.




Also verify the user from which u logged on needs to have organisation management role permission.

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i set the same cert for back end website same as front end but I see the port is 444 , and try login to ecp again and the result is same time
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i set the same cert for back end website same as front end but I see the port is 444 , and try login to ecp again and the result is same time

owa.jpg

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<p>So you should have said to us that you have a coexistence environment setup because this is very basic to an exchange expert I. E. Accessing ecp in coexistence environment.</p>
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So you should have said to us that you have a coexistence environment setup because this is very basic to an exchange expert I. E. Accessing ecp in coexistence environment.

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<div class="content wysiwyg-content">
Dear All,<br />
<br />
&nbsp;<br />
&nbsp; &nbsp; i have a fresh installed exchange 2019 on server 2019, suddenly after i logged in to ecp , i received below error, i have tried to remove owa from default website and re-added, but still no luck, also try below link and still no luck, any help would be appreciated, Thanks <br />
<br />
<a href="https://blog.ollischer.com/exchange-2016-http-error-500-after-logging-into-ecpowa" rel="ugc">https://blog.ollischer.com/exchange-2016-http-error-500-after-logging-into-ecpowa</a><br />
<br />
<br />
<br />
<br />
<br />
<a href="https://filedb.experts-exchange.com/incoming/2020/02_w07/1443868/2019.jpg" target="_blank" title="1 (57 KB)"><img alt="1" class="file-block lazyload" style="max-width: 780px;" data-src="https://filedb.experts-exchange.com/incoming/2020/02_w07/1443868/2019.jpg" /></a><br />
<br />
<a href="https://filedb.experts-exchange.com/incoming/2020/02_w07/1443869/owa-maintenance-error.jpg" target="_blank" title="2 (68 KB)"><img alt="2" class="file-block lazyload" style="max-width: 800px;" data-src="https://filedb.experts-exchange.com/incoming/2020/02_w07/800_1443869/owa-maintenance-error.jpg" /></a><br />
<br />
Keith
</div>
</div>


2019.jpg

owa-maintenance-error.jpg

Dear All,

 
    i have a fresh installed exchange 2019 on server 2019, suddenly after i logged in to ecp , i received below error, i have tried to remove owa from default website and re-added, but still no luck, also try below link and still no luck, any help would be appreciated, Thanks 

https://blog.ollischer.com/exchange-2016-http-error-500-after-logging-into-ecpowa











Keith

Exchange 2019 – HTTP Error 500 after logging into ECP/OWA

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.