After installing Microsoft Exchange Server 2016, when you login to Exchange admin center in Microsoft Exchange Server 2016, you may get the following error.
Microsoft Exchange Server: localhost currently unable to handle this request. HTTP ERROR 500.
- Turn off the firewall.
- Open control panel -> System and Security -> Windows Firewall -> Turn Windows Firewall on or off.
- Make sure all Exchange Server related services are running.
- Open Run -> type services.msc -> hit enter from the keyboard.