Edimax Technology BR-6204WLg - Manual (Page 62)

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Preamble Type Select the preamble type (long or short) for the
network packet. When you’re using this router in a
heavily-loaded network environment, select ‘Short
preamble’ will help to improve network
performance.
However, not every network client works with
short preamble (especially certain 802.11b
only wireless clients). If you found that some
wireless clients can’t connect to this router
when you select ‘Short Preamble’, please
select ‘Long Preamble’.
Broadcast SSID By selecting ‘Enabled’ here, this router will
broadcast its SSID to all wireless clients so they
can connect to this router. However, there will be
some security risk to let everyone know this
router’s SSID.
By selecting ‘Disabled’ here, this router will not
broadcast its SSID, so only client who know this
router’s SSID is able to connect to this router, and
therefore security level is improved.
IAPP IAPP stands for Inter-Access Point Protocol, If
your wireless clients will roam between access
points, you can select ‘Enabled’ here.
802.11g Protection When this wireless router is working in 802.11B +
802.11G mode, it’s high recommended to enable
802.11g protection to prevent data collision, and
this will improve network stability and
performance.
WMM Select ‘Enabled’ to enable support for WMM
(Wireless MultiMedia). This will improve the
performance of video / audio data transmission.