Lightning SA MultiCom, User Manual

Page: 101 / 172

MultiCom Firewall User’s Manual 101
There is another device on your network with the same IP address as your
network
If you are sure that your workstations are configured as DHCP clients and
they are receiving IP configuration information check the LAN DHCP
server leases page to see if those computer names or IP addresses show up
there. If they do not then you may have another DHCP server on your
network giving out configurations. Check with your Computer
Administrator to see if this is the case.
Only one DHCP server is allowed on your local network. If there is another
one in place you need to decide to use the built-in one of the MultiCom
Firewall or your other server.
There is another device on your network with
the same IP address as your firewall
Your MultiCom Firewall has a default IP address of 10.0.0.1 on the LAN
interface. You cannot have another ethernet device on your network with
this same IP address. Consider changing the other devices IP address or
change the IP address of your MultiCom Firewall.
You changed the time on your firewall but did
not reboot.
The default date of your MultiCom Firewall is January 1970. DHCP works
on a lease system where IP configurations are good for a specified amount
of time. When the original lease runs out your MultiCom Firewall will
attempt to renew its IP configuration information but will erroneously report
that the IP configuration has expired (since the current date is now more
then 30 years in the future.) The easiest fix for this is to reboot the
MultiCom Firewall and it will make a fresh request using the new time.
PPPoE Troubleshooting
If you are using a PPPoE connection there are a few specific troubleshooting
steps for you to try. These require using the web server diagnostic pages found at
“Web Server Status Reports” on page 74. Common problems that can block your
Internet connection include...
• incorrect password