Recently I got this error: “Operations Manager cannot connect to the Web service” when trying to connect to the management pack catalog in System Center 2012 Operations Manager.
First of all, Sysinternals Process monitor is a great tool to troubleshoot this. Filter out the SCOM console process and you will be able to see where it connects.
I did not find any good information on this, so I did some investigation and figured out where it tries to connect.
First it connects to ip: 22.214.171.124 over the http protocol next is 126.96.36.199 https. Put these ip adresses in your browser from the SCOM server and see if you are able to connect. If not, talk to your networking guys 🙂
Update: Seems like might also connect to other IP adresses. So far i’ve found these: 188.8.131.52 and 184.108.40.206.