VNC works over local network, not internet

Thanks for that suggestion, but it doesn't work
(mydomain.dyndns.org:5900 does work, though).

CompB is a newer computer than CompA. Did MS
change XP in any way? I wonder. It seems like
CompB is blocking remote access, but Internet
Connection Firewall is not enabled on it (I must
have check 5 times).


"Bill Sanderson"
<Bill_Sanderson.TakeThisOut@msn.com.plugh.org> wrote in
message
news:uIxsopX0DHA.2460@TK2MSFTNGP10.phx.gbl...
> Try mydomain.dyndns.org:5901
>
> "Nick" <nmarino.TakeThisOut@DELETETHISyahoo.com> wrote in
message
>
news:kajJb.3572585$be.555172@news.easynews.com...
> >I have 2 XP pcs connected by a netgear wireless
> > router. CompA is configured w. VNC at the
default
> > Display Number. CompB is at Display Number 1.
My
> > router is configured to pass 5900 to CompA,
and
> > 5901 to CompB.
> >
> > I can use VNCViewer to connect to CompA by
> > entering mydomain.dyndns.org (details
withheld),
> > but entering mydomain.dyndns.org:1 does not
> > connect to CompB. Error msg is 'Failed to
connect
> > to server'.
> >
> > However, I can run VNCViewer on CompA and
> > successfully connect to CompB:1, so I know
that
> > VNC is working on CompB.
> >
> > Neither computers have ICF enabled.
> >
> > Any suggestions would be appreciated.
> >
> >
> >
>
>

XP hasn't changed, except as happens with patch or SP application. I don't
know of anything that would block port 5901 except a firewall.

Is there any third-party software running on B that might include firewall
functionality?

Have you double-checked that the forwarding address on the router is still
correct?

"Nick" <nmarino RemoveThis @DELETETHISyahoo.com> wrote in message
news:hArJb.3611510$be.562285@news.easynews.com...
> Thanks for that suggestion, but it doesn't work
> (mydomain.dyndns.org:5900 does work, though).
>
> CompB is a newer computer than CompA. Did MS
> change XP in any way? I wonder. It seems like
> CompB is blocking remote access, but Internet
> Connection Firewall is not enabled on it (I must
> have check 5 times).
>
>
> "Bill Sanderson"
> <Bill_Sanderson RemoveThis @msn.com.plugh.org> wrote in
> message
> news:uIxsopX0DHA.2460@TK2MSFTNGP10.phx.gbl...
>> Try mydomain.dyndns.org:5901
>>
>> "Nick" <nmarino RemoveThis @DELETETHISyahoo.com> wrote in
> message
>>
> news:kajJb.3572585$be.555172@news.easynews.com...
>> >I have 2 XP pcs connected by a netgear wireless
>> > router. CompA is configured w. VNC at the
> default
>> > Display Number. CompB is at Display Number 1.
> My
>> > router is configured to pass 5900 to CompA,
> and
>> > 5901 to CompB.
>> >
>> > I can use VNCViewer to connect to CompA by
>> > entering mydomain.dyndns.org (details
> withheld),
>> > but entering mydomain.dyndns.org:1 does not
>> > connect to CompB. Error msg is 'Failed to
> connect
>> > to server'.
>> >
>> > However, I can run VNCViewer on CompA and
>> > successfully connect to CompB:1, so I know
> that
>> > VNC is working on CompB.
>> >
>> > Neither computers have ICF enabled.
>> >
>> > Any suggestions would be appreciated.
>> >
>> >
>> >
>>
>>
>
>

Perhaps ISP blocking of VNC now? (not that I am surprised)

On Sat, 3 Jan 2004 18:13:53 -0500, "Bill Sanderson"
<Bill_Sanderson.DeleteThis@msn.com.plugh.org> wrote:

>XP hasn't changed, except as happens with patch or SP application. I don't
>know of anything that would block port 5901 except a firewall.
>
>Is there any third-party software running on B that might include firewall
>functionality?
>
>Have you double-checked that the forwarding address on the router is still
>correct?
>
>"Nick" <nmarino.DeleteThis@DELETETHISyahoo.com> wrote in message
>news:hArJb.3611510$be.562285@news.easynews.com...
>> Thanks for that suggestion, but it doesn't work
>> (mydomain.dyndns.org:5900 does work, though).
>>
>> CompB is a newer computer than CompA. Did MS
>> change XP in any way? I wonder. It seems like
>> CompB is blocking remote access, but Internet
>> Connection Firewall is not enabled on it (I must
>> have check 5 times).
>>
>>
>> "Bill Sanderson"
>> <Bill_Sanderson.DeleteThis@msn.com.plugh.org> wrote in
>> message
>> news:uIxsopX0DHA.2460@TK2MSFTNGP10.phx.gbl...
>>> Try mydomain.dyndns.org:5901
>>>
>>> "Nick" <nmarino.DeleteThis@DELETETHISyahoo.com> wrote in
>> message
>>>
>> news:kajJb.3572585$be.555172@news.easynews.com...
>>> >I have 2 XP pcs connected by a netgear wireless
>>> > router. CompA is configured w. VNC at the
>> default
>>> > Display Number. CompB is at Display Number 1.
>> My
>>> > router is configured to pass 5900 to CompA,
>> and
>>> > 5901 to CompB.
>>> >
>>> > I can use VNCViewer to connect to CompA by
>>> > entering mydomain.dyndns.org (details
>> withheld),
>>> > but entering mydomain.dyndns.org:1 does not
>>> > connect to CompB. Error msg is 'Failed to
>> connect
>>> > to server'.
>>> >
>>> > However, I can run VNCViewer on CompA and
>>> > successfully connect to CompB:1, so I know
>> that
>>> > VNC is working on CompB.
>>> >
>>> > Neither computers have ICF enabled.
>>> >
>>> > Any suggestions would be appreciated.
>>> >
>>> >
>>> >
>>>
>>>
>>
>>
>

I've not worked with VNC with alternate ports before, so I don't know what
to look for. Here's a possible alternative to try.

If your router supports changing the port as it forwards inbound--many do
this, especially those supporting UPnP forwarding:

1) change the port for PC B back to the standard 5900

2) set the router to forward inbound packets on port 5901 to PC-b on port
5900.

Try connecting to the public IP of the router (from outside the router!) on
port 5901 and see what happens.

Refresh my memory about why you are doing uencrypted communication here?
This isn't safe--a VPN connection or using UltraVNC with an encryption
plugin would be better.

"Bill Sanderson" <Bill_Sanderson.DeleteThis@msn.com.plugh.org> wrote in message
news:OA8B48k0DHA.3140@tk2msftngp13.phx.gbl...
> XP hasn't changed, except as happens with patch or SP application. I
> don't know of anything that would block port 5901 except a firewall.
>
> Is there any third-party software running on B that might include firewall
> functionality?
>
> Have you double-checked that the forwarding address on the router is still
> correct?
>
> "Nick" <nmarino.DeleteThis@DELETETHISyahoo.com> wrote in message
> news:hArJb.3611510$be.562285@news.easynews.com...
>> Thanks for that suggestion, but it doesn't work
>> (mydomain.dyndns.org:5900 does work, though).
>>
>> CompB is a newer computer than CompA. Did MS
>> change XP in any way? I wonder. It seems like
>> CompB is blocking remote access, but Internet
>> Connection Firewall is not enabled on it (I must
>> have check 5 times).
>>
>>
>> "Bill Sanderson"
>> <Bill_Sanderson.DeleteThis@msn.com.plugh.org> wrote in
>> message
>> news:uIxsopX0DHA.2460@TK2MSFTNGP10.phx.gbl...
>>> Try mydomain.dyndns.org:5901
>>>
>>> "Nick" <nmarino.DeleteThis@DELETETHISyahoo.com> wrote in
>> message
>>>
>> news:kajJb.3572585$be.555172@news.easynews.com...
>>> >I have 2 XP pcs connected by a netgear wireless
>>> > router. CompA is configured w. VNC at the
>> default
>>> > Display Number. CompB is at Display Number 1.
>> My
>>> > router is configured to pass 5900 to CompA,
>> and
>>> > 5901 to CompB.
>>> >
>>> > I can use VNCViewer to connect to CompA by
>>> > entering mydomain.dyndns.org (details
>> withheld),
>>> > but entering mydomain.dyndns.org:1 does not
>>> > connect to CompB. Error msg is 'Failed to
>> connect
>>> > to server'.
>>> >
>>> > However, I can run VNCViewer on CompA and
>>> > successfully connect to CompB:1, so I know
>> that
>>> > VNC is working on CompB.
>>> >
>>> > Neither computers have ICF enabled.
>>> >
>>> > Any suggestions would be appreciated.
>>> >
>>> >
>>> >
>>>
>>>
>>
>>
>
>