Hi,

Today I planned to install CU2 update On my Exchange Server 2013. I already have CU 1 installed.

Everything was running perfect before running installation. Suddenly, installation of CU2 has failed and mail flow has stopped. I restarted the exchange server several time even restarted all the exchange services manually but no luck.

Now, Even Exchange transport service is not starting. I have tried it to set "Delay Restart" and restarted the server but no luck.

Everything is stopped now and I am afraid how to restore it back. I think installing CU2 has messed up everything.

I need very urgent help as nothing is working.

Looking for a quick answer...

Thanks in Adv

I Checked the Event Logs and found this error related to Transport Service

I get managed to start Transport service but Mail flow still not restarted..

Any suggestion Please..

getting this error while trying to reinstall CU2

Hi,
Pls confirm that all compontens are in an active state.
Example:
Get-ServerComponentState -id SERVERNAME

I also had problems with Transport after I installed CU2-V2 and had to change the state of the components with the below commands.

Set-ServerComponentState -id SERVERNAME -Component Hubtransport -State Active -Requester Maintenance
Set-ServerComponentState -id SERVERNAME -Component FrontendTransport -State Active -Requester Maintenance

Hi,

Thanks for your response..

I checked the component status, it is showing inactive while services are running. 

I tried to set active but no luck. The command is executing successfully but again when I check the status it shows inactive.

Pleas

Hey Sorry for my previous answer, it is showing all the components inactive, you may see the screenshot above.

I tried to activate, command running without any error but again it show inactive in status.

Any suggestion please

Hi,

I have tried this 

Set-ServerComponentState -ID MYSERVERNAME -Component ServerWideOffline -State Active -Requester Maintenance

The command is executing without any error but again showing all the component inactive.See the screenshot below..

Any other suggestion please as my mail flow is totally stuck now.

Hi,
You might need to specify another requester than maintenance as I wrote above.
Pls see the below blog post on how to find out which one to use (registry setting)
http://michaelvh.wordpress.com/tag/maintenance-mode/

Example:
Set-ServerComponentState -ID SERVERNAME -Component ServerWideOffline -State Active -Requester Depl

Hi,

Thanks a ton. All the components are active now, but still mail flow has not started.

I have restarted the services manually and even Server too but no luck.

Now, I have noticed one more thing, When I am trying to change DNS Lookup, I am getting this error..

Any Idea Please?

or any other suggestion..

Hi Martina,

I have fixed the issue.. Now mail flow is working perfect.

I just restarted the Microsoft Exchange Active Directory Topology..

Well, Thanks a ton for your wonderful support.