Member Avatar for Member #23858

I have been trying to do a remote assistance with my brother in law but have not been successful. We both have followed all the steps that it requires and get close to having an established connection but it says remote assistance connection could not be established because the remote host name could not be resolved. What can we do about that?
I have gone into my router and am using remote assistance exceptions. I tried turning of the windows firewall but have it listed as an exception also. What could be the problem. I need some step by step explanation as to what I need to do.
Thanks.

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Dani AI

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The phrase "remote host name could not be resolved" is literal: the helper side cannot turn the remote machine name in the invitation/broker into an IP address. That points to name-resolution or NAT/broker traversal problems rather than a simple local setting. Given 's error and 's Messenger idea, focus on verifying name resolution, reachability, and whether the session is being brokered through a service or must traverse a router.

Start with quick checks from both machines:

ipconfig /all
nslookup www.google.com
nslookup <host-name-from-invitation>
ping <remote-public-IP>

If nslookup <host-name-from-invitation> fails and the name looks like a local machine name (example: JOHN-PC), it will not resolve on the public Internet. If the invitation contains a hostname that is private or behind NAT, the helper cannot resolve it without either a broker or port forwarding. To test access to the RDP/RA port, try:

telnet <public-IP> 3389

(or on modern Windows)

Test-NetConnection -ComputerName <public-IP> -Port 3389

If the port is closed or the host fails to resolve, either enable proper port forwarding (TCP 3389) to the remote PC and test carefully, or use a brokered/relay tool (Quick Assist, TeamViewer, AnyDesk) or a VPN. Forwarding 3389 to the Internet has security risks—prefer a VPN or a secure third‑party relay if a direct brokered connection cannot be established.

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Member Avatar for UrbanKhoja

hi mate,i struggled with that as well, the easiest way i have found is to do it through msn messenger or windows live! messenger, under actions it will have `request remote assistance` - hope this helps

Member Avatar for Member #23858

I have used windows live messenger but it was still the same.

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