I get the message: 'Remote Assistance connection could not be established because the remote host name could not be resolved.' - What does that mean?

This don't work, cause if I change the IP address the assistant don't ask me more for a password. I get an error message "There is a problem with the invitation and it cannot be opened." I the ip is protected by hashing the ip address.

OK, this is simple. I'll make this as easy as I can to understand.

1) Open port 3389 on both the firewalls for each user. If there is only 1 firewall on one end and not on the other, then you only have to open the one firewall up.

2) The file that is created for the session invite needs to be edited in 2 ways.

RCTICKET="65538,1,192.168.1.1:3389;host_name:3389

This line needs to be changed in 2 spots:

RCTICKET="65538,1,66.66.66.66:3389;host_name.172.16.1.10:3389

You need to change the internal IP address to the external address, i.e. LAN Address to the WAN address, and you need to ADD the user default gateway to the end of the host_name. So, they should be changed like this:

RCTICKET="65538,1,192.168.1.1:3389;host_name:3389

to

RCTICKET="65538,1,66.245.112.159:3389;sandi.172.16.1.10:3389

I can't make it any more simply than that. Hope that helps you all.

I have been getting this same message "Remote Assistance connection could not be established because the remote host name could not be resolved." What exactly does that mean?:
One night me and a friend was working this for hours and tried many things but nothing worked. I even tried the port exception to 3389 from mt windows firewall. I think its my router but i am not sure how to fix the issue. Does anyone have any suggestions?

hai
this is raju.i want to work with the remote assistance.if my self or my friend access the invitation. we are get the same error. that is "remote assistance connection could not be established because the remote host name could not be resolved.please try again". both systems are work station (XP). no firewall.my ip id 192.168.x.x and the another end is 172.16.x.x. internet is working properly in both side.please answer me.

I try to open Domain security policy and Domain controller security policy in my windows 2003 server both are give the same error Failed to open the group policy object. “You may not have appropriate rights. The specified domain either does not exist or could not be contacted.” .but the gpedit Is open.

I try to open Domain security policy and Domain controller security policy in my windows 2003 server both are give the same error Failed to open the group policy object. “You may not have appropriate rights. The specified domain either does not exist or could not be contacted.” .but the gpedit Is open.

i get the message "Remote Assistance connection could not be established because the remote host name could not be resolved. What can i do to fix problem!! please HELP

This page has good explanations for most of the ways Remote Assistance can go wrong (including port forwarding with NAT, connecting behind firewalls, through routers, etc), and solutions: http://www.petri.co.il/what's_remote_assistanc.htm

I have followed the information given by Steve in August 07. It did not work, posibly because I am using Vista as is the remote computer. Does anybody know how the format of the invitation Ticket varies between XP and Vista?

remote desktop requires 3389 to be open, remote assistance works through upnp...idiots...