I went to United Networks workshop (Showtime workshop) at Al-Thajeej area this morning and it's official, they have numerous Tornado modems that have the same malfunction. It looks like it has an overheating problem that causes it to disconnect. They offered to replace my Tornado modem with a new one of the same brand but I insisted they give me another brand so they gave me Linksys Wireless-G (WAG200G) ADSL home gateway. Now I'm not going to rush on anything, but at least this one's smaller in size, has better signal coverage around the house and it doesn't make much noises when you lift the phone like the Tornado did.
Happy? Hell yes I am.
Satisfied? Not yet because I want to make sure I won't have to pay them another visit. Ohh and one last thing, hoping someone of United Networks would see this message...
One phone line for testing internet connectivity in your workshop?! Pffffftttt... Even my house has three phone lines and your workshop doesn't. =/