|I do have a router to which I connect my laptop wirelessly. |
However, at present owing to some circumstances wired connection is not possible. The distance is too far and there are obstacles in between. The router is not movable as it is connected to some fixed terminal from outside the building. Since such situation is not permanent I do not want to re-arrange the network to fit in with the current circumstances.
I have just tried with other wireless laptops, Windows 7 Ultimate and XP Home, and both worked fine. So there is something peculiar to my work laptop which is Windows 7 Professional and which does not work in such scenario.