84. A network administrator recently upgraded a wireless infrastructure with new APs. Users are reporting that, when stationary, the wireless connection drops and reconnects after 20 to 30 seconds. While reviewing the logs, the administrator notices that the APs are changing channels. Which of the following is the most likely reason for the service interruptions?
Answer: A
Channel interference is the most likely reason for the service interruptions.
The users are experiencing drops in their wireless connection due to channel interference, which is causing the access points (APs) to frequently change channels. This interruption leads to disconnections that last for about 20 to 30 seconds as the network attempts to stabilize.
A) Channel interference
Channel interference occurs when multiple wireless devices operate on the same or overlapping channels, leading to signal disruption. In this scenario, the frequent channel changes logged by the APs indicate that the network is attempting to avoid interference from other devices, which could be causing the users' connections to drop intermittently.
B) Roaming misconfiguration
Roaming misconfiguration typically refers to issues that arise when devices do not switch between APs smoothly. While this could lead to connectivity issues, the specific nature of the problem described—users dropping connections while stationary—suggests that the interference is more likely the cause rather than a misconfiguration in roaming settings.
C) Network congestion
Network congestion can lead to slow speeds and connectivity issues, but it is less likely to result in the specific symptoms described. The logs indicating channel changes point more directly to interference rather than an overload of the network, making this option less relevant to the users' reported issues.
D) Insufficient wireless coverage
Insufficient wireless coverage would generally result in weak signals or complete inability to connect, rather than intermittent drops in connection. The fact that users can connect but experience drops suggests that coverage is adequate, thus making this option an unlikely cause for the interruptions.
Conclusion
In conclusion, channel interference is the most probable reason for the reported service interruptions as it directly correlates with the APs changing channels to mitigate disruptions. The other options, while plausible in different contexts, do not adequately explain the specific scenario of stationary users experiencing connection drops for 20 to 30 seconds.