Your first paragraph. No, I did not reboot modem. Yes, I remember the internet tech mentioning that; forgot all about it.
Your second paragraph. The modem was provided by my internet provider, the wifi box is a Netgear. DO NOT plug directly into modem, is that correct? So, it appears it does not good unplugging from the wifi since doing that exposes me.
Your third paragraph. Yes, decent download considering I have over a dozen gadgets on wifi; although all are not operating at the same time. My speed next to the wifi is 12M's and in the living room it is 10. I've read I need at least 30M to stream effectively.
Your last paragraph. Just a modem, wifi box is separate as I stated above.
Conclusion, since it appears I cannot disconnect the wifi without exposing myself I'm stuck with what I've got. I've purchased a wifi booster to see if that will solve the problem. The one option I was considering is to run another line from my internet provider, pay the extra $65 a month, hook up a wifi box and run out three IPTV boxes of of that. I pay for 150M service so 3 boxes should give me about 50M for each box which is well above what is required.