D-Link DSR-1000AC User Manual - Page 256

Section 11 - Troubleshooting Testing the LAN path from your PC to a remote device 1. From the PC's Windows toolbar, Click Start and in the search box at the bottom, type cmd and press Enter. 2. Type ping -n 10 where -n 10 specifies a maximum of 10 tries and is the IP address of a remote device such as your ISP's DNS server. Example: ping -n 10 10.1.1.1. 3. Press Enter and then observe the display (see the previous procedure). 4. If the path is not working, do the following: • Check that the PC has the IP address of your firewall listed as the default gateway. (If the IP configuration of your PC is assigned by DHCP, this information is not visible in your PC's Network Control Panel.) • Verify that the network (subnet) address of your PC is different from the network address of the remote device. • Verify that the cable or DSL modem is connected and functioning. • Ask your ISP if it assigned a hostname to your PC. If yes, select Network Configuration > WAN Settings > Ethernet ISP Settings and enter that hostname as the ISP account name. • Ask your ISP if it rejects the Ethernet MAC addresses of all but one of your PCs. Many broadband ISPs restrict access by allowing traffic from the MAC address of only your broadband modem; but some ISPs additionally restrict access to the MAC address of just a single PC connected to that modem. If this is the case, configure your firewall to clone or spoof the MAC address from the authorized PC. D-Link DSR-Series User Manual 243