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My ZyXEL Device can not get an IP address from the ISP to connect to the Internet, what
can I do?
Currently, there are various ways that ISPs control their users. That is, the WAN IP is provided only when the
user is checked as an authorized user. The ISPs currently use three ways:
1. Check if the 'MAC address' is valid
2. Check if the 'Host Name' is valid, e.g., @home
3. Check if the 'User ID' is valid, e.g., RR-Toshiba Authentication Service, RR-Manager Authentication
Service
If you are not able to get the Internet IP from the ISP, check which authentication method your ISP uses and
troubleshoot the problem as described below.
1. Your ISP checks the 'MAC address'
Some ISPs only provide an IP address to the user with an authorized MAC address. This authorized MAC can
be the PC's MAC which is used by the ISP for the authentication. So, if a new network card is used or the
ZyXEL Device is attached to the cable modem directly, the ISP will reject the DHCP discovery from this MAC,
thus no IP is assigned by the ISP.
The ZyXEL Device supports to clone the MAC from the first PC the ISP installed to be its WAN MAC. To
clone the MAC from the PC you need to enter that PC's IP in menu 2. Once the MAC is received by the
ZyXEL Device, the WAN MAC in menu 24.1 will be updated and used for the ISP's authentication.
Key settings:
a. Assigned By, Choose 'IP address attached on LAN'.
b. IP Address, Enter the IP address of the PC which is installed by the ISP at the first installation.
2. Your ISP checks the 'Host Name'
MAC Address:
Assigned By=
IP address attached on LAN
IP Address=
192.168.1.33
All contents Copyright 2007 ZyXEL Communications Corporation.
P2302RL-P1 Support Notes
111
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