Problems with RPC server and scanning

[ceko]

Some computers have different IP addresses using firewall and have problems with the RPC serve. What ports exactly should be opened between lasnweeper serve and klinet computers?


Remote WMI test
\root\cimv2 Remote WMI access test FAILED
The RPC server is unavailable. (Exception from HRESULT: 0x800706BA)

Remote Registry test using WMI
\root\default Remote WMI access test FAILED
The RPC server is unavailable. (Exception from HRESULT: 0x800706BA)

[SUB]

Thanks, now we know what the problem is and what we have to do!
SUB

[Hemoco]

Please read this : http://msdn.microsoft.com/en-us/library/bb219447(VS.85).aspx

[SUB]

But we have to know the ports that WMI uses or how else can we open up in our firewall? As it is now we can se that they get stuck there but as you say they are random.
SUB

[Hemoco]

The lansweeper service connects first on the dcom port on the client (135 TCP) then WMI uses random ports.