hi

i was about finishing new installation for Exchange 2013

server1 : cas1

server 2 : cas2

server3 : cas + mailbox

for server 3: everything is ok and working with no issues

with server1,2 the owa and ecp not working properly ( after authentication it is showing internal error with 501 )

powershell not working properly with alot of errors as the below

The below some errors shown in the installation logs :

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Failed to load dependency Microsoft.Exchange.InstantMessaging of assembly Microsoft.Exchange.Monitoring.ActiveMonitoring.Local.Components, Version=15.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35 because of the following error : The system cannot find the file specified. (Exception from HRESULT: 0x80070002)

Hi Yasser,

I recommend you check if there is any exchange services not started on these 3 servers.

In addition, I recommend you restart all servers and check if any helps.

Best regards,

Hi Yasser,

I recommend you check if there is any exchange services not started on these 3 servers.

In addition, I recommend you restart all servers and check if any helps.

Best re

Seems communication error. Please check ping response, windows firewall settings(don't disable but allow ICMP), Services status. Also review or please share event logs.

Reboot servers in proper sequence like first mailbox ( let it comeup, verify services) then 1st CAS and then last one.

Patients and then give a check.

Thanks.

I disable the firewall on the  the mailbox and cas servers

reboot is ok

it doesn't make sense .