I'm using Exchange 2013 and after we restart the server the ECP page is not fully loading.

I tried restart again and keeps the same. Can someone help me how to fix it?

Hi,

According to your description, I can understand that you can access EAC in exchange 2013 successfully, but there is an issue with incomplete page display. Have you tried it in other browsers?

Please make sure you are using supported browsers for EAC access. If the issue also happens in IE, I suggest we can try to add this website into compatibility list to check whether the issue persists. To do it, we can try:

Press Alt + T, and then click on Compatibility view settings, add this URL into compatibility list. For detailed information about this setting, please refer to:

http://windows.microsoft.com/en-us/internet-explorer/use-compatibility-view#ie=ie-11-win-7

Thanks,