VNC connection problem

July 30, 2010 at 10:18:20
Specs: Windows XP
Please help. I can't connect to my company's VNC server. Here's the setup.

Qwest DSL modem <--> Belkin Router <--> PC : VNC works great

Motorola Cable Modem <--> Belkin Router <--> PC : VNC can not connect

Motorola Cable Modem <--> PC : VNC works great

Interestingly, I can even do SSH, telnet and browse all websites. Just VNC doesn't work with the cable modem when using router. Tried forwarding ports in the router, no help. Thanks for your help.


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#1
July 30, 2010 at 11:25:17
I assume you're trying to connect from home or any other location to the company's vnc server.

I further assume, that the Motorola Cable Modem and the Belkin Router are at your side, not at the company's side.

When you try to connect from home to the company's vnc server, you don't need any port forwarding at your side because normally all traffic from inside your network to the internet is allowed. Only the incomming traffic is blocked.
So you only need port forwarding, if you'd like to provide services from your computer to the internet.

The original poster should always write the last response !!!
Let us know, if the problem is solved !!!


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#2
July 30, 2010 at 13:40:35
Paul,
You are right. I'm connecting to my company's network from home thru VPN. Then I try to connect to company's VNC server.

At home, I have internet connection from both Qwest (DSL) and Cox (cable modem). VNC works great with Qwest connection but not with Cox. Getting "connection timed out (10060)" error.

I'm using the same router for both, therefore router should not be the issue. I can ping the VNC server and connect thru SSH. Can you please help?
Thanks again,
DN


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#3
July 30, 2010 at 17:26:08
When I'm right, the cox cable modem has a coax connector, a LAN connector and a USB port, right.

The connection of the coaxial cable is a must and can't get wrong.
But what about the Ethernet connector and the USB connector?
You hopefully use only one of then either USB or LAN.

In addition, how is your computer connected to the router, or how many LAN cards are installed to your computer.

Is there another cable (maybe USB) running directly to the modem?

And last but not least, what does ipconfig /all show on both types of connection, via Quest (DSL) and via COX (cable connection)?

Best is to post both ipconfig /all outputs here.

The original poster should always write the last response !!!
Let us know, if the problem is solved !!!


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Related Solutions

#4
August 1, 2010 at 21:16:32
Paul,

Here is the ipconfig/all output when connected thru router. VNC does not connect in this mode.

=============

C:\Documents and Settings\dnayak>ipconfig/all

Windows IP Configuration

Host Name . . . . . . . . . . . . : dnayak-MOBL6
Primary Dns Suffix . . . . . . . : amr.corp.intel.com
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : amr.corp.intel.com
amr.corp.intel.com
om.cox.net

Ethernet adapter Wireless Network Connection:

Connection-specific DNS Suffix . : om.cox.net
Description . . . . . . . . . . . : Intel(R) WiFi Link 5300 AGN
Physical Address. . . . . . . . . : 00-21-6A-31-62-A4
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : No
IP Address. . . . . . . . . . . . : 192.168.1.3
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . :
DHCP Server . . . . . . . . . . . : 192.168.1.1
DNS Servers . . . . . . . . . . . : 192.168.1.1
Lease Obtained. . . . . . . . . . : Sunday, August 01, 2010 4:17:47 PM
Lease Expires . . . . . . . . . . : Monday, August 02, 2010 4:17:47 PM

Ethernet adapter Local Area Connection:

Media State . . . . . . . . . . . : Media disconnected
Description . . . . . . . . . . . : Intel(R) 82567LM Gigabit Network Con
nection
Physical Address. . . . . . . . . : 00-24-81-B1-9D-A1

Ethernet adapter Cisco AnyConnect VPN Client Connection:

Connection-specific DNS Suffix . : amr.corp.intel.com
Description . . . . . . . . . . . : Cisco AnyConnect VPN Virtual Minipor
t Adapter for Windows
Physical Address. . . . . . . . . : 00-05-9A-3C-7A-00
Dhcp Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 10.254.56.59
Subnet Mask . . . . . . . . . . . : 255.255.224.0
Default Gateway . . . . . . . . . : 10.254.32.1
DNS Servers . . . . . . . . . . . : 132.233.251.50
132.233.250.50
Primary WINS Server . . . . . . . : 143.182.250.105
Secondary WINS Server . . . . . . : 132.233.251.70

C:\Documents and Settings\dnayak>
============


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#5
August 1, 2010 at 21:18:42
Unfortunately, I lost my Qwest connection. Here's the IPconfig information when connected at local starbucks. VNC works fine there.
=================

C:\Documents and Settings\dnayak>ipconfig/all

Windows IP Configuration

Host Name . . . . . . . . . . . . : dnayak-MOBL6
Primary Dns Suffix . . . . . . . : amr.corp.intel.com
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : amr.corp.intel.com
amr.corp.intel.com
sbx08612.omahane.wayport.net
corp.intel.com
intel.com

Ethernet adapter Wireless Network Connection:

Connection-specific DNS Suffix . : sbx08612.omahane.wayport.net
Description . . . . . . . . . . . : Intel(R) WiFi Link 5300 AGN
Physical Address. . . . . . . . . : 00-21-6A-31-62-A4
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : No
IP Address. . . . . . . . . . . . : 192.168.5.90
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . :
DHCP Server . . . . . . . . . . . : 98.98.134.6
DNS Servers . . . . . . . . . . . : 192.168.5.1
Primary WINS Server . . . . . . . : 192.168.5.1
Lease Obtained. . . . . . . . . . : Sunday, August 01, 2010 2:14:55 PM
Lease Expires . . . . . . . . . . : Sunday, August 01, 2010 3:14:55 PM

Ethernet adapter Local Area Connection:

Media State . . . . . . . . . . . : Media disconnected
Description . . . . . . . . . . . : Intel(R) 82567LM Gigabit Network Con
nection
Physical Address. . . . . . . . . : 00-24-81-B1-9D-A1

Ethernet adapter Cisco AnyConnect VPN Client Connection:

Connection-specific DNS Suffix . : amr.corp.intel.com
Description . . . . . . . . . . . : Cisco AnyConnect VPN Virtual Minipor
t Adapter for Windows
Physical Address. . . . . . . . . : 00-05-9A-3C-7A-00
Dhcp Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 10.254.38.197
Subnet Mask . . . . . . . . . . . : 255.255.224.0
Default Gateway . . . . . . . . . : 10.254.32.1
DNS Servers . . . . . . . . . . . : 132.233.251.50
132.233.250.50
Primary WINS Server . . . . . . . : 132.233.251.70
Secondary WINS Server . . . . . . : 143.182.250.105

C:\Documents and Settings\dnayak>


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#6
August 1, 2010 at 21:20:16
Also, VNC works great when my computer is directly connected to the Cox cable modem thru ethernet cable.
==============

C:\Documents and Settings\dnayak>ipconfig/all

Windows IP Configuration

Host Name . . . . . . . . . . . . : dnayak-MOBL6
Primary Dns Suffix . . . . . . . : amr.corp.intel.com
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : amr.corp.intel.com
amr.corp.intel.com
om.cox.net
corp.intel.com
intel.com

Ethernet adapter Wireless Network Connection:

Media State . . . . . . . . . . . : Media disconnected
Description . . . . . . . . . . . : Intel(R) WiFi Link 5300 AGN
Physical Address. . . . . . . . . : 00-21-6A-31-62-A4

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . : om.cox.net
Description . . . . . . . . . . . : Intel(R) 82567LM Gigabit Network Con
nection
Physical Address. . . . . . . . . : 00-24-81-B1-9D-A1
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : No
IP Address. . . . . . . . . . . . : 72.196.8.78
Subnet Mask . . . . . . . . . . . : 255.255.254.0
Default Gateway . . . . . . . . . :
DHCP Server . . . . . . . . . . . : 172.19.81.16
DNS Servers . . . . . . . . . . . : 68.105.28.12
68.105.29.12
68.105.28.11
Lease Obtained. . . . . . . . . . : Saturday, July 31, 2010 7:24:10 PM
Lease Expires . . . . . . . . . . : Sunday, August 01, 2010 7:24:10 PM

Ethernet adapter Cisco AnyConnect VPN Client Connection:

Connection-specific DNS Suffix . : amr.corp.intel.com
Description . . . . . . . . . . . : Cisco AnyConnect VPN Virtual Miniport Adapter for Windows
Physical Address. . . . . . . . . : 00-05-9A-3C-7A-00
Dhcp Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 10.254.51.104
Subnet Mask . . . . . . . . . . . : 255.255.224.0
Default Gateway . . . . . . . . . : 10.254.32.1
DNS Servers . . . . . . . . . . . : 132.233.251.50
132.233.250.50
Primary WINS Server . . . . . . . : 132.233.251.70
Secondary WINS Server . . . . . . : 143.182.250.105

C:\Documents and Settings\dnayak>


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#7
August 1, 2010 at 21:21:55
Everything looks pretty much normal to me. Let me know if you see something unusual. Thanks

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#8
August 1, 2010 at 22:05:04
What's about the different ip addresses for the vpn server?
Is this correct?
I think it isn't.
If you'd like to test the connection, you should connect always to the same vpn server, to avoid differences at the vpn servers configuration.

The original poster should always write the last response !!!
Let us know, if the problem is solved !!!


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#9
August 1, 2010 at 22:08:37
Ah never mind.
That's the ip addresses of the vpn client.
Ok, so I can't see missconfiguration.

Can you do a port scan to the vnc server to the used vnc port, to figure out, whether it's shown as open port on both connections?

The original poster should always write the last response !!!
Let us know, if the problem is solved !!!


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#10
August 2, 2010 at 08:13:38
Paul. It worked. I was using partial address of VNC server, and that was the problem. Somehow, the partial address worked when connected at other places, but at home it needs full address to the VNC server. I was told, it's a limitation of the AnyConnect VPN client. Thank you so much for all your help. You have a great day.

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#11
August 2, 2010 at 10:07:31
Great to hear, that it's working !!!
You are welcome.

The original poster should always write the last response !!!
Let us know, if the problem is solved !!!


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