Speed may vary depending on:

- Coverage area, i.e. the maximum speed which can be attained at your location.
- The distance to the base station.
- If you are indoors, outdoors or in a car.
- Your immediate surroundings. If you're sitting in your basement, you get lower speeds compared to if you're sitting in a room with a window.
- The number of online users in your area.

It is not uncommon that the actual speed is well below advertised maximum speed. The speed you actually get is determined by the coverage available where you are located and on how much traffic other people around you use at the same time as you. The capacity of a so-called "cell" is always limited.

In order for the promised higher speeds to be even theoretically possible, there must first and foremost be 4g coverage in your area. With only access to 3g (turbo-3g), the maximum speed will be considerably lower.

However, there are several things you as a user can do to optimize conditions for good speed. Since the reception can vary in different locations with mobile broadband, it can often be enough just moving a few meters for the signal strength to change.

Since walls interfere with the signal it is recommended to place your computer near a window. Signal reception can also be influenced by surrounding wireless networks and other wireless devices such as other phones.