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This could be an indicator of a wireless carrier failure (affecting many users at once) a RIM service failure a network failure causing an SRP connect failure between the BES Server and RIM a problem with the BES SQL Server database or hung worker thread(s) causing delays in message delivery and eventually a BES Messaging Agent restart on the BES Server. This can be seen in the case study in which 52% of networks were operating on the same channel.Ĭritical The total message pending for is regularly above the critical threshold of ].
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Whilst those with advanced knowledge can examine networks in the vicinity, the average user will not be able to examine those that withhold the SSID and so collisions may be rife. Allowing users of wireless networks to identify channels being used and select other channels can reduce interference. The inclusion of the SSID in the standard was to aid management of wireless networks and it really should be used for doing this. Thus, in practice, it does not improve security to stop the SSID broadcast and doing so can cause problems with wireless networks.
#Zero configuration networking pdf notes windows
Using Microsoft Windows XP SP 1-based Wireless Zero Configuration service to manage the wireless network card suffers from what Microsoft calls "behaviour by design." If the wireless network is not set to broadcast the SSID, Microsoft's wireless manager periodically drops the non-broadcasting WiFi connection in response to the presence of a broadcasting SSID-based network. Essentially, disabling SSID broadcast just stops the inclusion of SSID’s in the broadcast beacon frame which is the one of the five SSID broadcast mechanisms. The disabling of an SSID broadcast offers very little increase in security to anyone attempting to access a network, it only stops beacon broadcast on the access point. There are a great deal of information sources that recommend users stop or to disable the SSID broadcast we strongly recommend against this action.