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31 Days Before Your CCENT Certification by Scott Bennett

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CCNA Discovery 1, Chapter 9

9.3.4 and 9.3.5: Connectivity problems on a WLAN can occur because of authentication issues, interference, signal strength, standards mismatches, and bandwidth issues. Consider the following points when troubleshooting a WLAN:

Standards: The client or AP may be using incompatible standards such as 802.11a on the 5-GHz frequency and 802.11b on the 2.4-GHz frequency.

Channels: Overlapping channels for conversations between devices may be affecting connectivity.

Signal: A lower-strength signal may cause a connection to periodically drop and/or become unreliable. In addition, outside sources such as wireless devices not associated with the WLAN may be interfering with the signal.

Bandwidth: An increase in users ...

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