Hi,My modem (Huawei MT882) has had it, I think. Every time I start it, for the first four or five minutes, it works erratically: the connection keeps breaking a lot. Then it sort of warms up, and then the connection is stable, and after this the modem works perfectly alright, like it used to. All this happened after power fluctuations, I think.Anyway, I'd like to buy a new modem, and I have a few questions:[1] What's a modem, and what's a router, and what's the difference between the two? [2] Is wired better, or wireless? Will a wireless one work all the time, in all seasons (because the telephone line often goes down during monsoon).[3] What are all these features, like NAT, and DMZ, and stuff? If the question is too long to answer, just give me some links from where I can find the information.Thanks.