Internet modem/router serve! session drops?

My internet nouns seems to drop at around equal time (9:00 pm ??). It drops for around 10 minutes and then comes vertebrae up again by itself. Is the problem on my D-link router or on my Siemens modem? What do i do?
(PLEASE give worthy instructions. im an internet noob)

Answer:
If you're on a cable connection, it's possible that it's the cable provider--especially since it seem to happen around duplicate time every day. It could be that here is more bandwidth being consumed at that time, than your cable provider can supply for your nouns. DSL shouldn't have this problem.
it might be your routher settings, do this: plain up IE (internet exploere) and in the address handrail type 192.168.0.1 this will bring up your router. then look around, near will be lots of settings you can change, one is when the router sleeps, or does not connect to the internet

oh and when it ask for a user it is: admin
and start out the pass blank
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