Hi,
Do you mean that when you open http://<servername>/connect, it returns "this page can't be found"?
Did you open it on Windows Client or on the Windows essential server?
If there is no issue to open it on the server, there should be some problem with the Windows client.
If it also returns "this page can't be found" on the server, please check below.
- Are all the following services running?
- Have you done some changes on IIS configuration? Or you can try to restart the IIS Service to see if it helps.
Below is the detailed information of connecting computers to the Windows Server Essentials server.
Get Connected in Windows Server Essentials
https://learn.microsoft.com/en-us/windows-server-essentials/use/get-connected-in-windows-server-essentials#BKMK_3
Thanks,
Eleven