Hi
I just installed CCTV and it works except internet. This is business Talk Talk, router Technicolor TG 582n. Ethernet cable is good, laptop connected works, I set port forwarding on the router, but I cannot ping DVR. Message is: Destination host unreachable. the router has dvr on the network devices list, correct interface, IP address, MAC address, but there is no full connectivity between dvr and router. Day before same DVR was tested and connected to Virgin Media router, worked fine. Now while connected to Talk Talk router does not connect to the router. Subnet mask, default gateway, DNS were set correctly on DVR.
I don't understand why I can't ping DVR, but it is on the network device list
Who can help? Perhaps Talk Talk uses different ports, or firewall issue, or DMZ?????