Symptom You cannot access the Configuration Utility from a PC on your LAN.
1. Check the Ethernet connection between the PC and the security appliance.
2. Ensure that the IP address of your PC is on the same subnet as the security appliance. If you are using the recommended addressing scheme, your PC’s address should be in the range 192.168.75.100 to 192.168.75.200.
3. Check the IP address of your PC. If the PC cannot reach a DHCP server, some versions of Windows and MacOS generate and assign an IP address. These auto-generated addresses are in the range of 169.254.x.x. If your IP address is in this range, check the connection from the PC to the security appliance and reboot your PC.
4. If your IP address has changed and you don’t know what it is, reset the security appliance to the factory default settings.
If you do not want to reset to factory-default settings and lose your configuration, reboot the security appliance and use a packet sniffer (such as Ethereal™) to capture packets sent during the reboot. Look at the ARP packets to locate the LAN interface address.
5. Launch your web browser and ensure that Java, JavaScript, or ActiveX is enabled. If you are using Internet Explorer, click Refresh to ensure that the Java applet is loaded. Close the browser and launch it again.
6. Ensure that you are using the correct login information. The factory default login name is cisco and the password is cisco. Ensure that CAPS LOCK is off when entering this information.
Symptom The security appliance does not save my configuration changes.
1. When entering configuration settings, click OK or Save before moving to another page or tab; otherwise your changes are lost.
2. Click Refresh or Reload in the browser, which will clear a cached copy of the old configuration.
Symptom The security appliance cannot access the Internet.
Possible Cause If you use dynamic IP addresses, your security appliance is not requesting an IP address from the ISP.
1. Launch your browser and determine if you can connect to an external site such as www.cisco.com.
2. Launch the Configuration Utility and login.
4. In the WAN Interface(s) area, find the WAN1 Address. If 0.0.0.0 is shown, your security appliance has not obtained an IP address from your ISP. See the next symptom.
Symptom The security appliance cannot obtain an IP address from the ISP.
1. Turn off power to the cable or DSL modem.
2. Power off the security appliance.
3. Then reapply power to the cable or DSL modem.
4. When the modem lights indicate that it has resynchronized with the ISP, reapply power to the security appliance. If the security appliance still cannot obtain an ISP address, see the next symptom.
Symptom The security appliance still cannot obtain an IP address from the ISP.
1. Click Networking > WAN > WAN Settings.
2. Click the Edit (pencil) icon to configure the primary WAN port.
The WAN - Add/Edit window opens.
3. Ask your ISP the following questions:
• What type of network addressing mode is required for your Internet connection? In the IPv4 tab, choose the correct ISP connection type in the IP Address Assignment drop-down list, and then enter the account information as specified by the ISP.
• Is your ISP expecting you to login from a particular Ethernet MAC address? If yes, in the IPv4 tab, choose Use the following MAC address from the MAC Address Source drop-down list, and then enter the required MAC address in the MAC Address field.
Symptom The security appliance can obtain an IP address, but PC is unable to load Internet pages.
1. Ask your ISP for the addresses of its designated DNS servers. Configure your PC to recognize those addresses. For details, see your operating system documentation.
2. On your PC, configure the security appliance to be its TCP/IP gateway.