Lately, i think from past 2 - 3 weeks when i turn on the astro decoder no signal is received and has to wait for 15 - 20 minutes before can receive the sat signal, been using astro for nearly 8 years, same decoder and no such problem except during rain / cloudy. Any one facing same problem ? I'm staying in Kulim area btw.

some bird may knock the dish out.... slight re-allignment would solved it...

Call astro ask for replacement.

opportunity to go byond.

most probably cable aging problem, or may be LNB got rain water damage

I had the similar problem as yours, although not as serious. Mine need to switch on around 5-6 min before I could watch it.
Notice else where take only minute or so. Probably something to do with the decoder.

check out da dish... adjust it a bit... happen 2 me b4, clear weather bt no signal...