In my expieriance it is defiinitly good advice to use this tip. It seems to me like whenever there is even the slightest 'hiccup' with the ISP's service the modem seems to have a memory and after a while i'm assuming that this could build up. Whenever my cable connection seems a bit sluggish i'll pull the plug on it and wait for a couple minutes and then plug it back in. It's always worked, absolutly 100% of the time. I'm sure doing this on a regular basis would be a very good idea.