Trouble connecting to clients with VNC

mikeplastic
mikeplastic used Ask the Experts™
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I have two symptoms on my server:  I cannot sent e-mail between internal clients and i cannot VNC to clients from the server or from one another.  
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Bryon HSenior Technical Support Analyst
Top Expert 2010

Commented:
we're going to need a lot more info here...

like, what mail server software are you using at a minimum, and how are you trying to send that email. is this an exchange server, or a member server without exchange?  are the workstations and servers connected on the same lan, or a vpn?

sounds a lot like a windows firewall problem on the server, you might try disabling the firewall.

Author

Commented:
No exchange server! Use Outlook 2003 and Outlook 2007.  Tried disabling the firewall - no affect.  Also tried to clear DNS as Follow:
IN SERVICES:
Stop NetLogon
Stop DNS Server

THEN

Command Screen:

/ipconfig /flushdns

THEN:
Start NetLogon
Start DNS Server

THEN

Command Screen:

/ipconfig /registerdns

NO help!!

Author

Commented:
Clients and Server on the LAN!
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Bryon HSenior Technical Support Analyst
Top Expert 2010

Commented:
ok so we need to see a few things here

what is the name of one of the clients you can't vnc into?

then, do this from the server:
start > run > cmd
ping NAME
(where NAME is the name of the client, for example:  ping computer2)

tell me if it replies or does not reply.

are your machines (servers and workstations) on a DOMAIN network, or just kind of there?

from the server, do this too:
start > run > cmd
ping www.google.com
(tell me if it says reply from or request timed out, or unknown host)

Author

Commented:
The workstations are on the domain.  I can ping to the workststions by name - i cannot ping to www.google.com or www.msn.com
Senior Technical Support Analyst
Top Expert 2010
Commented:
ok so if your VNC connection is lan to lan, you're going to have to verify some more things:

on the client/workstation, make sure the vnc service is started (start > run > services.msc)
also, temporarily disable the windows firewall on the client workstation, and try your vnc connection again.

we'll deal with your internet connection issues in a bit

Author

Commented:
It is not a firewall and the VNC Service is on!
Bryon HSenior Technical Support Analyst
Top Expert 2010

Commented:
windows has a built in firewall, that's what i was asking about - on the client workstations, start > run > services.msc
is the "windows firewall/internet connection sharing" service started?  if so, stop it, and try your vnc again.

if the windows firewall service was already stopped, do this on the client and post me the results:

start > run > cmd
netstat -a -p tcp > netstat.txt
notepad netstat.txt

Author

Commented:
windows firewall/internet connection sharing is disabled on the Server.  I cannot get to the Client but there appears to be more than one problem - i am trying something with hardware (the switch) as some clients i can get to some i cannot get to and some i cannot even ping to.  I will finish this on Tuesday when the offices are open again.

Author

Commented:
I want to assign points - how!

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