A user's smartphone is experiencing an issue where it can connect to Wi-Fi networks but has no Internet access. What is MOST likely the cause of this problem?
The WPA2 key entered for the Wi-Fi network is incorrect
Issues with the DHCP configuration or service
The device's MAC Address has been blocked.
The device is connected to the wrong SSID
The most common reason for a device to connect to Wi-Fi but not have Internet access is due to issues with DHCP. This could be because the device did not obtain an IP address correctly, or the DHCP server is not functioning properly. Checking the DHCP settings and ensuring the device is properly receiving an IP address is a critical step in diagnosing connectivity issues. SSID mismatch refers to the device trying to connect to the wrong network, which would prevent connection entirely. If the subnet mask is incorrect, the device might still get access to the local network but have issues reaching other networks, though it's a less likely scenario. Incorrect WPA2 key would prevent the device from connecting to the Wi-Fi network in the first place, not from accessing the Internet after connecting to the Wi-Fi.
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