Re: Can't Connect Remote Desktop From Outside Network -- DSL Modem

Tech-Archive recommends: Repair Windows Errors & Optimize Windows Performance



"fzfrank" wrote:



"Sooner Al [MVP]" wrote:

"fzfrank" <fzfrank@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:211E8459-C357-47D0-A646-CACD28EB5547@xxxxxxxxxxxxxxxx
I apologize if this is a double-post. I just submitted a similar post but
I'm
not sure it made it -- I searched for it and it wasn't there.

I have spent the last couple of days trying to set up remote desktop and
I'm
wondering if my DSL Modem or DSL provider is preventing me from doing it.

I know I have everything working on me local network because I can do a
remote web-based (and standard) connection to my host from another
computer
on my local network. I'm also pretty sure I have the correct settings on
my
routers. My router configuration is:

DSL Modem --> VOIP Router --> Wireless Router --> 2 computers

I have the VOIP Router DMZ-ing to the Wireless Router and the proper ports
on the Wireless Router forwarded to the host computer.

I just can't connect to the host computer from outside my network. I try
to
connect to the web site http://xx.xx.xxx.xx:xx/tsweb and I get a "can't
connect" error message.

Any thoughts? FYI, my DSL modem is "Microsoft DSL 1000".

Thanks.

You need both TCP Port 80 (IIS) and TCP Port 3389 (Remote Desktop aka RDP)
open/forwarded through any firewall or router the PC you want to connect to
is behind. So, if you go to the http://www.canyouseeme.org site while on
that PC does the test pass? Meaning can you pass both the IIS and RDP port
tests? If not, can you at least pass the RDP port test? Be aware some DSL
modems are also routers and either you need to open/forward the appropriate
ports or configure the modem into a bridge mode, ie. disabling its NAT
function. Check the users manual for help with that.

Also make sure your calling the correct public IP. Note that with most
current consumer grade routers it is *NOT* a valid test to call the PC from
another PC on your local network using the public IP of the modem and/or
router.

http://theillustratednetwork.mvps.org/RemoteDesktop/TroubleshootingDiagrams/Basic.html

Also note that some ISPs block TCP Port 80 incoming because running a web
server (ie. IIS) that is publicly available is a violation of a residential
account terms of service. Check with your ISP about that...

--

Al Jarvi (MS-MVP Windows Networking)

Please post *ALL* questions and replies to the news group for the
mutual benefit of all of us...
The MS-MVP Program - http://mvp.support.microsoft.com
This posting is provided "AS IS" with no warranties, and confers no
rights...

I tried canyousee.org and neither passed the test. I also tried DMZ-ing both
routers and it still didn't pass the test. I previously opened the ports on
the host computer's firewall and I was able to connect with another computer
on the local network, so I assume that means the firewall is configured
correctly.

I'm going to try plugging the host computer directly in to the DSL modem.
Will that at least isolate the problem?

Re: calling the computer from a local network computer, I had someone else
try from across the country and they got the same error message.

OK, I tried connecting the host computer directly to the DSL Modem and
canyousee.org still couldn't see either port.
.

Relevant Pages

  • Re: Wanting to place my hosted web on my server
    ... Or My son is on that network where the server ... >> the router setup page. ... From outside the local network there may be some ... >> one with port 80 open. ...
    (microsoft.public.windows.server.dns)
  • Re: could a series of wireless routers be hindering remote access??
    ... We have set up a host computer in my office which is connected to a ... that is associated with that computer through the router by using ... my office but not from other remote locations. ... the proper port in my router firewall. ...
    (microsoft.public.windowsxp.work_remotely)
  • Re: LInksys WAG354G Router Woes
    ... my local network, one is my main computer and the other is my web ... The router is set to forward ports 80 and 443 to the machine with the ... web server on it. ... WEP and trouble free port forwarding? ...
    (uk.comp.sys.mac)
  • Re: LInksys WAG354G Router Woes
    ... my local network, one is my main computer and the other is my web server. ... The router is set to forward ports 80 and 443 to the machine with the ... WEP and trouble free port forwarding? ...
    (uk.comp.sys.mac)
  • Re: Need Port open
    ... > I need to have the other computers in the local network connect to this ... > "HP" is the server and it's in the local network in the home. ... You only need to forward ports through a router if you intend to permit ... you won't have a port open. ...
    (microsoft.public.windowsxp.network_web)