User's Manual

9 Installing the EUM
APCD-LM043-4.0 123
Q: DHCP is not available on the network. Is there anything else I can do?
A: DHCP is a tool that allows you to re-use IP addresses and simplifies the procedure for
configuring the end-user PC. If DHCP is not available, the WISP must provide the installer with
the following IP addresses for the end-user’s PC:
• PC IP address
• Subnet mask
• Gateway IP address
• DNS IP address
These addresses can be directly entered into the end user’s PC through the operating system.
Once these addresses are entered and activated (which may require re-booting the PC), the
installation process can proceed as outlined above. To confirm the data link to the WISP
network, use the tests outlined in Testing the Data Link on page 116, or configure and activate
the end-user’s browser, as shown in Configuring the Browser Application on page 119.
Q: The EUM keeps shutting off automatically. How can I prevent this?
A: The EUM may be overheating due to inadequate ventilation. Lightly touch the modem case.
If the case is hot, the solution may be to find a new location for the EUM, where it can stand
upright and away from other objects that may be blocking or interfering with its ventilation. If
these measures have no effect, and the EUM is still running hot, unplug it and return it to the
WISP for a replacement.
Similarly, if the EUM is operating in an environment below 10°C, the EUM may repeatedly shut
down and restart. Moving the EUM to a warmer location resolves this problem.