Hi there
I'm using a BT Business Hub 5 (Type A) and have a setup with a number of machines running in the local network.
I'm using the router's DHCP for all machines and have set a reserved local IP for each. Every time the machines are restarted, they are assigned the same IP according to the Business Network screen on the router's admin UI.
I set up a port forward some time ago for making RDP connections to a specific machine (let's call it Machine A). This takes all connections on port 3389 and forwards them to Machine A. This worked fine for quite a while. After restarting the machine on one occasion (not the first time it had been restarted), the remote connection ceased to work. I checked numerous things (firewall, remote setup, etc.) and determined that everything was fine on Machine A. I was able to connect to it from other machines within the network, using its IP address.
What I noticed when trying to connect from outside the network, is that the router's log is forwarding the packeds to the wrong IP (one that, in fact does not exist). Machine A is set to 192.168.1.82, but the forward is sending the connection to 192.168.1.101.
Everywhere the router lists the computer (along with name/MAC address) it is listed as 192.168.1.82 and there are no entries anywhere for 192.168.1.101. In keeping with this, the 'phantom' IP cannot be connected to or pinged.
I have attempted the following:
- Check DHCP settings (router and machine - all fine)
- Restart Machine A
- Restart Router
- Remove and replace 'application' on router
- Remove and replace port forward rule on router
Has anyone else experienced anything similar? No matter what I try, the log keeps showing my attempted connections have been forwarded to this non-extistent IP.
Any assistance would be appreciated.
Many thanks.