Re: Remote Assistance not working

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From: Robin Walker (rdhw_at_cam.ac.uk)
Date: 10/15/04 

Date: Fri, 15 Oct 2004 11:37:07 +0100

"Jeff" <Jeff@discussions.microsoft.com> wrote in message
news:D413EDDD-DAB1-4D52-8FE5-B02A68F5FC0B@microsoft.com...
>
> I am unable to connect via Remote Assistance. The PC initiating the
> request
> is on a LAN behind a NAT Router (A Prolink Hurricane 9000 ADSL
> modem/routher). I am running Windows XP SP2 and have made the necessary
> exceptions for UPnP and Remote Assistance. On the initiating PC we have
> turned off the firewall but still doesn't work. The Router manufacturer
> claims that this model is not UPnP capable and suggested enabling port
> fowarding to port 3389 which we did and also enabling DMZ which we did but
> it
> still doesn't work.

Correct: forwarding to 3389 or placing the PC in the DMZ is not sufficient
to enable Remote Assistance to work if the requester is behind a NAT router.
Remote Assistance *requires* UPnP support in the NAT router, so as to
discover the WAN IP address to write into the request ticket for the expert
to connect to. If UPnP is present, then Remote Assistance will sort out the
port-forwarding automatically.

> We also tried editing the invitation files but that didn't work either.

Unsure why that did not work for you, if you edited the correct WAN address
in place of the LAN address. But you would also have needed to port-forward
3389 in the NAT router at the same time.

> Any suggestions ??

If you wish to support Remote Assiatnce, scrap the NAT router and replace it
with one that supports UPnP. 

-- 
Robin Walker
rdhw@cam.ac.uk

Relevant Pages

  • Re: Is DMZ enough for Remote Assistance
    ... Google for "remote assistance" nat: ... The problem is with the NAT router at the "Novice" end (the person who ... At the Novice end, any NAT router in use must support UPnP, and UPnP must be ... Novice's internet connection (i.e. the WAN IP address of the Novice's NAT ...
    (microsoft.public.windowsxp.work_remotely)
  • Re: Remote Assistance Error
    ... I was also behind a linksys router which I had all the ... failed message when trying to accept a remote assistance invite. ... However, I can send a request for assistance myself, and the other ... > - what is the make and model of NAT router? ...
    (microsoft.public.windowsxp.work_remotely)
  • Re: Remote Assistance
    ... The problem is with the NAT router at the "Novice" end (the person who ... At the Novice end, any NAT router in use must support UPnP, and UPnP must be ... "Remote Assistance",. ... internet connection, to be written into the help request ticket. ...
    (microsoft.public.windowsxp.work_remotely)
  • Re: Remote Assistance not working
    ... I tried one more time using the edit the request file ... I set prot forwarding in the router to 3389 and then ... >> I am unable to connect via Remote Assistance. ... >> exceptions for UPnP and Remote Assistance. ...
    (microsoft.public.windowsxp.work_remotely)
  • Re: Remote Assistance
    ... In the configuration pages of the NAT router at the novice end. ... >>> "Remote Assistance connection could not be established because the ... >> - the NAT router must support UPnP; ...
    (microsoft.public.windowsxp.work_remotely)