AX2012 cannot start multi AOS instance

I installed AX2012 multiple AOS instances on the Window Server 2008 R2 x64.

The first AOS instance was running with no problems.

However, the second AOS instance cannot run and it throw errors:

"Window could not start the Microsoft Dynamics AX Object Server 6.0$02-AX2012_AOS_DEV02 on local computer. For more information, review Event lo.  Refer to service specific error code 110" 

Note:

----> The second AOS instance has TCP/IP, Service WSDL and Service endpoint ports different than the first AOS instance.

----> The first and second AOS instance pointed to same Microsoft SQL Server database.

Can someone help and give me some hints?

Many thanks in advance.

-Edwin