Hi,
I thought I would complete the thread. I wrote Marriott a comment via their web site and was very impressed with their response. I listed all of the hotels where I had problems and received an individual reply form each. 3 of 4 said they found a problem. One was a cut wire, another a known wireless bandwidth issue tehy claimed was being corrected and the last was not specific. The fourth said they would investigate but I never hear anything else. All that found something offered reward points as compensation. I replied to each thanking them for their response.

I wasted a lot of time on these problems but it's appreciated that they truly looked into this at multiple properties. As expected Marriott was very professional which is my past experience and is one reason why they are my first choice.