I do not think that this has anything to do with the ISP. You have people in the US, Canada, and me in the Middle East all with similiar problem but yet all with different ISPs. In my opinion it is with Ubi-Soft and their servers. Mine started after I left my 360 off for a few days, too many to be truthfull and I guess I lost message chess games, but I can't verify if I did loose because I can't get into my message chess inbox.
Did any of you experience this after leaving your 360 off for an extended period of time? Possibly forfeiting/losing games? I'm trying to determine a common cause to how my issue started and possibly to how all of our problems started.
Another peculiar fact to my scenario is that I can play a ranked classic chess games on-line over Live and this obviously goes to the Ubi-Soft servers. It would be nice to know how many servers Ubi-Soft has servicing Chessmaster Live and if it is more then one, do they each handle differnet types of games variants, i.e one for message chess, and another for regular ranked games...etc.
I would like to contact Ubi-Soft myself and ask more specific quetions. Can you please provide me with the contact numbers and/or email you have since you were in touch with them.
I work for a comms company as a systems control officer in the largest network operations center in the middle east and have 18 years of experince troubleshooting comms issues. It would also help if everyone who is in this thread put their focus on Ubi-Soft and call them to report this issue. The more voices there are the better our chances of being heard.
I also don't think that this would be a MS problem. I doubt that MS would somehow have only one variant of a game not work on their Live network. It would be more likely that if this were a MS issue that the entire game would not be working on Live not only a certain portion of the game.
Look forward to hearing you. As soon as I the contact details for Ubi-Soft from you I contact them and post any and all answers that I might get.