cancel
Showing results for 
Show  only  | Search instead for 
Did you mean: 
jasonbrink
Engaged Sweeper III
I created an early thread and thought I figured it out but didn't. It was moved to solved issues.

I still have 16 computers with the The RPC server is unavailable 0x800706BA message on it.

I did the following:

1 - Made sure firewall was turned off
2 - Made sure no 3rd party firewalls were installed
3 - Made sure correct computer name in DNS is resolving correct IP
4 - Made sure PC was turned ON
5 - Made sure all WMI settings are correct

I am able to ping and remote desktop to these computers (windows XP SP2 and SP3) but lansweeper isn't picking them up. Any help is appreciated.
9 REPLIES 9
Hemoco
Lansweeper Alumni
Dcom must be enabled and then port 135 will be open.
jasonbrink
Engaged Sweeper III
Would I be correct in saying port 135 needs to be accessible for Lansweeper to scan a machine? port 135 is for microsoft DCOM access? Would their be a way to manually open port 135 on a remote workstation?
jasonbrink
Engaged Sweeper III
If I type telnet computername on any computer on our domain, I get "Could not open connection to the host, on port 23: Connect failed".

If I type telnet computername 135 it just says "Connecting to computername..." and just sits there with a blinking cursor.

Hmmm
Hemoco
Lansweeper Alumni
You should get a blank screen with a blinking cursor if it works.
If it fails you get "Could not open connection to the host, on port 135"
jasonbrink
Engaged Sweeper III
Would I just type from a telnet prompt "telnet computername 135" ?? If so, it doesn't work.
Hemoco
Lansweeper Alumni
Are you able to manually telnet to port 135 to the machine?
jasonbrink
Engaged Sweeper III
I found the connection tester in the lansweeper program directory.

When I test the computer I'm having issues with, I'm now getting:

\root\cimv2 Remote WMI access test FAILED
The RPC server is unavailable. (Exception from HRSEULT: 0x800706BA)
jasonbrink
Engaged Sweeper III
Where/what is the connectiontester? Do I run that from server or client?

Below is the screenshot of the netsh firewall show state from the client...

I ran that command and saved as firewall.cmd and it didn't fix it. We don't run the firewall on the clients.

Hemoco
Lansweeper Alumni
Could you try the connectiontester for both fqdn,computername and ip address.

Could you post the output of "netsh firewall show state"

run these commands to manually set the firewall:
call netsh firewall set service RemoteAdmin enable
call netsh firewall add portopening protocol=tcp port=135 name=DCOM_TCP135
call netsh firewall add allowedprogram program=%windir%\system32\wbem\unsecapp.exe name=WMI
call netsh firewall add allowedprogram program=%windir%\system32\dllhost.exe name=Dllhost

New to Lansweeper?

Try Lansweeper For Free

Experience Lansweeper with your own data.
Sign up now for a 14-day free trial.

Try Now