After spending hours with ESPN technical support, it appears that the issue is that I purchased my ESPN+ subscription from Roku instead of ESPN. When you purchase through Roku, you can't manage your subscription through the ESPN website, you can't watch ESPN+ on you laptop, it doesn't work on your android, but it does work on iOS. And ironically, it doesn't even work on your Roku TV because you get the disabled message discussed in this thread.
It looks like I will need to wait a month until my ESPN+ subscription from Roku expires, so I can then purchase directly from ESPN and hopefully resolve all these issues. I have purchased direct from ESPN many times before in the past and have never had any of these issues.
In the mean time, I guess I'll have to steal my kids iPad to watch any games.
