D-Link DFL-CPG310 Product Manual - Page 456
My network seems extremely slow. What should I do?
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Connectivity • Check your TCP/IP configuration according to Installing and Setting up T the NetDefend firewall on page 15. T • Restart your NetDefend firewall and your broadband modem by disconnecting the power and reconnecting after 5 seconds. • If your Web browser is configured to use an HTTP proxy to access the Internet, add "my.firewall" or "my.vpn" to your proxy exceptions list. My network seems extremely slow. What should I do? • The Ethernet cables may be faulty. For proper operation, the NetDefend firewall requires STP CAT5 (Shielded Twisted Pair Category 5) Ethernet cables. Make sure that this specification is printed on your cables. • Your Ethernet card may be faulty or incorrectly configured. Try replacing your Ethernet card. • There may be an IP address conflict in your network. Check that the TCP/IP settings of all your computers are configured to obtain an IP address automatically. I changed the network settings to incorrect values and am unable to correct my error. What should I do? Reset the network to its default settings using the button on the back of the NetDefend firewall unit. See Resetting the NetDefend firewall to Defaults on page T T 418. I am using the NetDefend firewall behind another NAT device, and I am having problems with some applications. What should I do? By default, the NetDefend firewall performs Network Address Translation (NAT). It is possible to use the NetDefend firewall behind another device that performs NAT, such as a DSL router or Wireless router, but the device will block all incoming connections from reaching your NetDefend firewall. To fix this problem, do ONE of the following. (The solutions are listed in order of preference.) 440 D-Link NetDefend firewall User Guide