Buffalo WLI-PCM-L11GP User Manual page 10

ESS-ID
The ESS-ID is an identification code required for communi-
cation in a wireless LAN.
The same ESS-ID must be set to the AirStation and the
wireless LAN PC to enable communication. (ESS-ID is not
valid when communicating between wireless LAN comput-
ers)
of up to 32 alphanumeric characters including the under bar (_).
Wireless Channel
If you have several wireless LAN networks with different
ESS-IDs on one floor, the transfer speed may be affected
when communicating with other wireless LAN networks.
This is because radio waves with the same frequency are
being used. To avoid this problem, set a different frequency
(wireless channel) for each wireless LAN network.
However, close frequencies used on adjacent channels
may interfere with each other. If you use more than one
channel, make sure that you do not use adjacent channels.
* When connecting between wireless LAN computers, the
* If you change the wireless channel, it may cause radio
8 WLI-PCM-L11 User's Manual
The ESS-ID is upper/lower case sensitive and can consist
same wireless channel must be used in all the wireless
LAN computers involved.
wave interference with other wireless devices.