Hi all: I've installed Exchange 2013 with CU1 for a hybrid deployment. I'm currently running Exchange 2007 on premise. Yesterday I was configuring the Internal/External URLs for OWA and ECP. After that ECP stopped working and even the PowerShell console is giving errors. No matter what command I type I get the following error: An attempt was made to access a socket in a way forbidden by its access permissions. Any ideas will be greatly appreciated. Oh, the server is Windows 2008 R2.

Any chance that another applications is trying to listen on tcp 80,443Dean Sesko

Hi the symptom could occur if the replication service tries to use the ports that occupied by others, or by a malfunction NIC Please restart the windows firewall service Please reboot the problematic machine Please run the ExBPA against the exchange server for health checkTerence Yu TechNet Community Support

HI guys: I stopped IIS and did a netstat -onab I found something listening on port 443: TCP 0.0.0.0:443 0.0.0.0:0 LISTENING 4 Can not obtain ownership information I can't figure out what service is using 443. Any ideas on how to proceed ? The PID 4 shows up as NT Kernel & System.

Anything else installed on the server besides Exchange and the prerequisites?Dean Sesko

Yes only Exchange.

Will ExBPA work for Exchange 2013 ?

I've opened a case with MS.. I'll keep everybody posted to the results.

Did you check to make sure that your default website and your backend website are not using the same ports? Default should be on 80 and 443 Backend should be on 81 and 444Dean Sesko