I am new to Exchange and I installed it for the very first time yesterday. Everything worked fine but when I changed the time of the system I got a blank page after login in to the mailbox through Exchange Admin Center (on the administrator mailbox). I set the time back to its old setting both on the DC and the Exchange server but to no avail. I noticed that when I reboot the Exchange server that all my Exchange services aren't running even though they are set to automatic. When I turn these on however, it still won't work. I also checked the bindings and the certificate is both set to "Exchange". In the EMS I could see that I have the administrator mailbox.
Anyone got any idea what the problem could be?