Is there any wifi router or device which can provide provide the range of 4-5 kilometer?

Question

high range wifi router

Answer 1

Yes, but those are big boxes, with a crazy antennae.

Answer 2

Generally these kind of ranges are achieved by using laser type connections from one point to another.

these need to have a clear view of each other and are way beyond the budget of mere mortals.

using highly directional antennas such as the parabolic "satellite" dish type can massively increase the range. It is also possible to install now software to increase the output power of routers but this is illegal and might fry the router.

a site with parabolic dishes is hawking's- they make such things affordable

http://www.hawkingtech.com/

Ideally communication between two devices will have no obstacles in the way

Answer 3

no......