Wireless Network Connectivity Issues
Question
An employee, who is using a laptop connected to the wireless network, is able to connect to the Internet but not to internal company resources.
A systems administrator reviews the following information from the laptop: IP: 192.168.1.100 - MASK: 255.255.255.0 - ROUTER: 192.168.1.1 - The administrator was expecting to see a network address within 10.100.0.0/23, which is consistent with the company's wireless network.
The network administrator verifies the company's wireless network is configured and working properly.
Which of the following is the MOST likely cause of this issue?
A.
Interference B.
Security type mismatch C.
Wrong SSID D.
Channel overlap.
C.
Explanations
An employee, who is using a laptop connected to the wireless network, is able to connect to the Internet but not to internal company resources.
A systems administrator reviews the following information from the laptop: IP: 192.168.1.100 - MASK: 255.255.255.0 - ROUTER: 192.168.1.1 - The administrator was expecting to see a network address within 10.100.0.0/23, which is consistent with the company's wireless network.
The network administrator verifies the company's wireless network is configured and working properly.
Which of the following is the MOST likely cause of this issue?
A.
Interference
B.
Security type mismatch
C.
Wrong SSID
D.
Channel overlap.
C.
The most likely cause of the issue described is that the laptop is not connected to the company's wireless network, but instead is connected to a different wireless network.
This can happen if the laptop user has manually connected to a different wireless network, or if there are multiple wireless networks in the area with the same SSID (network name) and the laptop has connected to the wrong one.
The IP address of the laptop (192.168.1.100) is from a different network than the one the company is using (10.100.0.0/23). The subnet mask (255.255.255.0) indicates that the laptop is on a different subnet than the company's network, further supporting the theory that the laptop is connected to a different wireless network.
The fact that the laptop can connect to the Internet but not internal company resources suggests that the laptop is able to access resources outside the company's network, but is unable to access resources on the company's network.
Therefore, the most likely cause of the issue is that the laptop is connected to a different wireless network with a different IP address range and subnet mask, which is preventing it from accessing the company's internal resources.
Option C (Wrong SSID) is the best answer since it suggests that the laptop user has accidentally connected to a different wireless network with a similar name to the company's wireless network. Option A (Interference), B (Security type mismatch), and D (Channel overlap) are less likely causes of the issue and are not supported by the information provided.
