V100 User Guide YML749Rev1
32 www.netcomm.com.au
Appendix B: Troubleshooting
WAN LED is off
Please check whether your V100 is connected to a switch or a broadband router/modem properly
using a category 5 Ethernet cable.
No dial tone
If you cannot hear a dial tone after the V100 has completely booted up, please see Appendix A and
follow the steps to diagnose problems based on the connection type you are using (Cable or DSL).
Fail to register on a SIP server
Symptoms:
■ No dial tone;
■ Unable to make/receive calls;
■ The “Status” page of configuration utility shows “Not Registered”.
Checkpoints:
1) Diagnosing Internet connection
■ If you are using xDSL broadband, check whether your xDSL router/modem has got line
sync.
■ Check whether your router/modem has established PPP connection with your ISP.
■ If your V100 uses PPPoE mode, your xDSL router/modem has to work in bridge mode.
Check whether your V100 can establish PPP connection (refer to the section on Connec-
tion Mode Tab for more information).
2) Diagnosing V100 connection
■ If you choose DHCP, please make sure your V100 has been assigned a valid IP address
from your DHCP server (refer to the section on Status Tab for more information)
■ If you choose FixedIP, please check whether you inputted an unused IP address, correct
subnet mask, default gateway and DNS server IP address.
3) Diagnosing your SIP account
■ You have to make sure all SIP account information is correct including SIP username,
Auth. ID, Auth. Password, SIP server domain name/IP address and SIP server registration
port (refer to the section on SIP Tab for details for more information).
■ Do not change SIP server registration port unless you know what you are doing.
■ If you are unsure about these parameters please call your VoIP service provider.
