ZyXEL Communications P-2900-4HB User Manual
Page 90
Chapter 12 Troubleshooting
P-2900-4HB User’s Guide
90
• If you want your computer to get a dynamic IP address assigned by a DHCP
server provided by your cable service provider, make sure your computer is
able to receive a dynamic IP address. You have to also disable the DHCP
Server function on the ZyXEL Device (select None in the DHCP field in the
Advanced Setup > LAN > LAN Setup screen, see
The USB LED is off.
• Check the USB cable connection. Unplug and plug in the USB cable.
• Check that your computer operating system is supported by the USB driver and
that it has been properly installed. Try installing the USB software again.
Cannot make a VoIP call.
• You should have applied for at least one phone number from your VoIP service
provider and the number(s) should be activated.
• Make sure you connect your telephone to the right port. Each PHONE port
maps to a unique number.
• Check the phone connection. Disconnect and connect the phone cable. The
PHONE LED for the connected port should light. Contact your VoIP service
provider if the PHONE LED still keeps off. If it is not, check that the phone wire
is not broken, the telephone is turned on and working and that the ZyXEL
Device is turned on and working.
• If the PHONE LED is on but you still cannot make a call, check that the DS, US,
and ONLINE LEDs are on. If they are not, you have an Internet access
problem. See Cannot access the Internet on