A user of the wireless network is unable to gain access to the network.
The symptoms are: 1.) Unable to connect to both internal and Internet resources 2.) The wireless icon shows connectivity but has no network access The wireless network is WPA2 Enterprise and users must be a member of the wireless security group to authenticate.
Which of the following is the MOST likely cause of the connectivity issues?
Click on the arrows to vote for the correct answer
A. B. C. D. E.C.
Based on the given symptoms, the most likely cause of the connectivity issues is related to authentication or authorization issues.
Option A, that the wireless signal is not strong enough, could cause connectivity issues, but it is not the most likely cause as the wireless icon shows connectivity. This indicates that the laptop is connected to the wireless network, but there is some issue preventing it from accessing network resources.
Option B, that a remote DDoS attack against the RADIUS server is taking place, is unlikely as this would affect all users trying to authenticate through the RADIUS server, not just a single user.
Option C, that the user's laptop only supports WPA and WEP, is also unlikely as WPA and WEP are less secure protocols and are not commonly used in enterprise environments that require users to be a member of a wireless security group to authenticate.
Option D, that the DHCP scope is full, could cause connectivity issues, but it is unlikely to be the root cause of the problem since the symptoms suggest an authentication issue.
Therefore, the most likely cause is Option E, that the dynamic encryption key did not update while the user was offline. WPA2 Enterprise uses 802.1X authentication, which uses a RADIUS server to authenticate users and generate a unique encryption key for each session. If the encryption key did not update while the user was offline, it would cause connectivity issues when the user tries to access network resources.
In this scenario, the user should try to reconnect to the network to get a new encryption key generated by the RADIUS server. If the issue persists, the user should contact the IT department to check if there are any issues with the RADIUS server or the user's account.