What is the difference between a mobile broad band connection and a wireless LAN connection?
Added (1). Access connections ask me to choose, it is not really working so maybe I'm choosing the wrong one which one should I be choosing for my Lenovo laptop win 7 if that matters.
A mobile broadband connection gets the broadband over the cellular (mobile) phone network, and will require some form of mobile phone type connection including a SIM either on a monthly or Pay-As-You-Go type contract. It will normally require you to install a cellular data dongle into a USB port on the laptop, and the dongle will carry the SIM card. This can have a range of several kilometres from the nearest cellular mast and will connect to any available mast for the chosen network that is within range.
Wireless LAN, normally refers to Wi-Fi, which is provided by a home router, a free Wi-Fi hotspot, a wireless access point, or even a hotspot enabled on a mobile phone. Wi-Fi has a maximum range of around 100 metres. For home use, this requires the home to have an ISP connection over a phone line or cable.
Unless you have a cellular dongle that you are using, then wireless LAN should be the option to choose.
Broadband connects your PC or LAN to the internet using microwave signals. Wireless LAN connects your PCs to a network using radio frequencies.