100-140 Question 30
Select 3A user reports that they are unable to connect to the corporate Wi-Fi network from their laptop, but other devices such as their smartphone connect without any issues. Upon investigation, you find that the laptop connects to other Wi-Fi networks successfully. What could be the probable cause of this failure?
- A
The laptop's Wi-Fi adapter is disabled.
- B
The corporate Wi-Fi network is using an unsupported frequency band for the laptop.
- C
The laptop has incorrect Wi-Fi credentials saved for the corporate network.
- D
The corporate Wi-Fi network is down for all devices.
- E
The laptop's IP configuration is conflicting with another device on the network.
Show answer and explanation
Correct answers: B, C, E
Explanation
The issue is specific to the laptop's connection to the corporate Wi-Fi network, while other devices and networks function normally. This rules out network-wide issues or a disabled adapter. Probable causes include the laptop's Wi-Fi adapter not supporting the frequency band used by the network, incorrect Wi-Fi credentials, or an IP conflict specific to the corporate network.
- A. Incorrect.
The laptop's Wi-Fi adapter being disabled would prevent it from connecting to any Wi-Fi network, but the laptop can connect to other networks, so this is not the cause.
- B. Correct.
If the corporate Wi-Fi network uses a frequency band (e.g., 5 GHz) that the laptop's Wi-Fi adapter does not support, it could prevent the laptop from connecting.
- C. Correct.
Incorrect credentials saved on the laptop for the corporate network could cause a connection failure, even if the network is functioning properly.
- D. Incorrect.
If the corporate Wi-Fi network were down for all devices, the user would not be able to connect to it using their smartphone, which contradicts the scenario described.
- E. Correct.
An IP configuration conflict on the laptop could prevent it from successfully connecting to the corporate network but not impact its ability to connect to other networks.