Worst case scenario boot (with DHCP) takes up to 35 seconds.
Login as root on HDMI / serial console or via SSH and use password 1234.
You will be prompted to change this password at first login.
Next you will be asked to create a normal user account that is sudo enabled (beware of default QWERTY keyboard settings at this stage).
So if you have a Dell, go to com, find your model and download the driver for the wireless card.
Go ahead and right-click on your wireless network connection and choose Properties.
To check the settings, go to Network Connections like mentioned above and then right-click on the network connection and choose Properties.
Now select Internet Protocol (TCP/IP) in the list box and click on Properties.
Firstly, the more common wireless issue is when the computer will continuously drop from the Wi-Fi network and then suddenly reconnect for no apparent reason.
The main culprit behind this type of problem is usually software, not hardware.
So if updating the driver, resetting the configuration, and repairing the network connection don’t work, then try to unplug the wireless router and plug it back in after about a minute.