User Manual

Psion Teklogix 9160 Wireless Gateway User Manual D-3
Appendix D: Troubleshooting
Wireless Distribution System (WDS) Problems And Solutions
This section provides information about how to solve common problems you might
encounter in the course of updating network configurations on networks served by
multiple, clustered access points.
D.1 Wireless Distribution System (WDS) Problems And
Solutions
If you are having trouble configuring a WDS link, be sure you have read the notes
and cautions in “Configuring WDS Settings” on page 190. These notes are reprinted
here for your convenience. The most common problem Administrators encounter
with WDS setups is forgetting to set both access points in the link to the same radio
channel and IEEE 802.11 mode. That prerequisite, as well as others, is listed in the
notes below.
Notes:
• The only security mode available on the WDS link is Static WEP, which
is not particularly secure. Therefore, we recommend using WDS to
bridge the Guest network only for this release. Do not use WDS to
bridge access points on the Internal network unless you are not con-
cerned about the security risk for data traffic on that network.
• When using WDS, be sure to configure WDS settings on both access
points participating in the WDS link.
• You can have only one WDS link between any pair of access points. That
is, a remote MAC address may appear only once on the WDS page for a
particular access point.
• Both access points participating in a WDS link must be on the same
Radio channel and using the same IEEE 802.11 mode. (See “Configur-
ing Radio Settings” on page 157 for information on configuring the
Radio mode and channel.)
• Do not create loops with either WDS bridges or combinations of Wired
(Ethernet) connections and WDS bridges. Spanning Tree Protocol
(STP), which manages path redundancy and prevents unwanted loops, is
not enabled for this release. Keep the following rules in mind when
working with WDS on this release of the 9160 Wireless Gateway: