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ProSafe Dual WAN Gigabit Firewall with SSL & IPsec VPN FVS336G Reference Manual
Troubleshooting 10-3
v1.2, June 2008
Troubleshooting the Web Configuration Interface
If you are unable to access the VPN firewall’s Web Configuration interface from a PC on your
local network, check the following:
• Check the Ethernet connection between the PC and the VPN firewall as described in the
previous section.
• Make sure your PC’s IP address is on the same subnet as the VPN firewall. If you are using the
recommended addressing scheme, your PC’s address should be in the range of 192.168.1.2 to
192.168.1.254.
• If your VPN firewall’s IP address has been changed and you don’t know the current IP
address, clear the VPN firewall’s configuration to factory defaults. This will set the VPN
firewall’s IP address to 192.168.1.1. This procedure is explained in “Restoring the Default
Configuration and Password” on page 10-7.
• Make sure you are using the SSL https://address login rather than http://address.
• Make sure your browser has Java, JavaScript, or ActiveX enabled. If you are using Internet
Explorer, click Refresh to be sure the Java applet is loaded.
• Try quitting the browser and launching it again.
• Make sure you are using the correct login information. The factory default login name is
admin and the password is password. Make sure that CAPS LOCK is off when entering this
information.
If the VPN firewall does not save changes you have made in the Web Configuration Interface,
check the following:
Note: If your PC’s IP address is shown as 169.254.x.x: Windows and MacOS will
generate and assign an IP address if the computer cannot reach a DHCP
server. 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 VPN
firewall and reboot your PC.
Tip: If you don’t want to revert to the factory default settings and lose your
configuration settings, you can reboot the VPN firewall and use a sniffer to
capture packets sent during the reboot. Look at the ARP packets to locate the
VPN firewall’s LAN interface address.