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Ports

posted by mikemorf on Feb 10, 2008


I have in the past have run remote assistance until I installed a new 2wire
modem\router. The computer that I try and connect to also has a new
siemens gigset se567.I can connect to computers in my network using
remote assistance.So I would believe it is a port issue . here are the errors
I recieve when attempting to use remote
Remote Assistance connection could not be established because the remote host name could not be resolved. Please try again.
A Remote Assistance connection could not be established. You may want to check for network issues or determine if the invitation expired or was cancelled by the person who sent it. Hope you can help
Mike

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Best Solution
posted on Feb 10, 2008
Helpful (85)

XBRMann


Rank:Wiz Wiz
Rating: 87%, 35 votes
Just to verify, you are trying to connect from a computer external to your network to a computer on your internal network, right?

The error you mention is thrown if the name in the remote asstiance file cannot be resolved by DNS. Open the remote assistance file you generate in a text editor like notepad and then look for the value next to "RCTICKET=". This is name name & IP of the computer requesting remote assistance. If you're trying to connect from an external computer, make sure of the following:
  1. On your router, forward TCP 3389 to whatever IP you're trying to access
  2. That the hostname listed is able to resolved externally (it needs to have a fully qualified domain name list somehost.somedomain.com not just somehost'
  3. The IP address is not a private (192.168.x.x or 10.x.x.x) address but a publicly accessible IP address.

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