I am using the "Ask for Remote Assistance" within Messenger to try and gain access to a remote PC. Both Messenger Versions are the same. When I accept the invitation, the error message above is displayed. I connect to the Internet via a BT Broadband Router and other end uses a Dial Up Connection. The clients have XP SP2 loaded. I thought it was a firewall problem so I disabled the firewall on all network and dial-up connections but the same message appears. If I connect the PC's to the same LAN, remote assistance works ok, even with firewall enabled. I have checked the router and enabled all traffic on the IP address of the PC, which includes port 3389. Can anybody advise any further steps to get remote assistance working.
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remote assistance connection could not be established because the remo
- Thread starter jasonb007
- Start date
It is possible that the ISP is blocking that port.
It may also be your router's issue, as you may need to open the ports on the router itself, or even have those ports forwarded to your specific IP address (unless you have already put yourself in the DMZ).
Computer/Network Technician
CCNA
It may also be your router's issue, as you may need to open the ports on the router itself, or even have those ports forwarded to your specific IP address (unless you have already put yourself in the DMZ).
Computer/Network Technician
CCNA
- Thread starter
- #3
ISP is BT and they say it is possible to use Windows XP Remote Assistance, so pretty sure they are not blocking. I've opened port 3389 on the router too for the IP address my PC is using. I've looked at the firewall settings and my ip address is in the DMZplus list
- Thread starter
- #5
Try using another software for remote access. look into VNC. You can easily change ports on that and i think it will be better option on dialup.
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mobajwa
After the game ,the king and the pawn , both go in the same box.
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mobajwa
After the game ,the king and the pawn , both go in the same box.
- Thread starter
- #8
Just some more info from tests. If I connect the two PC's to the same LAN - Remote Desktop works OK. If I connect MSN using a dial up connection (UK2), this works fine too. If I take the PC back at the customer who is on BT Broadband (as is the other PC at our office) Remote Desktop fails !! So LAN-LAN works, Dial-Broadband works but Broadband to Broadband does not (even though same ISP and Router both ends). I am going to email BT to see if they know of any issues.
If your LAN is connected to the Internet using NAT (address translation), the external pc will not be able to see the LAN based pc's IP address. If your pc allows ICMP traffic in and you still cannot ping the pc's IP address from the dialup pc, I dont think you will be able to connect.
I think MarkhP is right.
For troubleshooting purposes, use the advance ofption and save the invitation into a file. You can open this file (using notepad) and look at the ip add being sent by your pc. It will contain your LAN IP address, which is not accessible from the dial up pc, unless he is connected via vpn.
For troubleshooting purposes, use the advance ofption and save the invitation into a file. You can open this file (using notepad) and look at the ip add being sent by your pc. It will contain your LAN IP address, which is not accessible from the dial up pc, unless he is connected via vpn.
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