A network technician is troubleshooting poor wireless performance, excessive frame retransmissions, and intermittent connectivity dropouts across an office floor using three access points operating on the 2.4 GHz band. A site survey reveals that adjacent access points are currently assigned to Channel 1, Channel 3, and Channel 5. Which TWO actions should the technician take to resolve the radio frequency interference and stabilize the wireless network?
- Reconfigure the access points to operate on non-overlapping channels 1, 6, and 11.Answer
- Adjust and reduce the transmission power levels on adjacent access points to limit cell coverage overlap.Answer
- CIncrease the channel bonding width from 20 MHz to 40 MHz across all 2.4 GHz access points.
- DAssign consecutive channel numbers such as 1, 2, and 3 to ensure smooth frequency transitions for roaming devices.
Answer
The technician should reconfigure access point channel assignments to use non-overlapping channels (1, 6, and 11) and adjust transmission power levels to limit cell coverage overlap.
Reconfiguring the wireless access points to use channels 1, 6, and 11 eliminates adjacent-channel interference because these three channels have sufficient frequency separation. Decreasing transmission power resizes the coverage cells, minimizing co-channel interference and facilitating effective client roaming.
Step-by-Step Solution
Key Concept
2.4 GHz Channel Overlap and RF Cell Tuning