I find the my.tablotv.com website through the Chrome browser the most problematic recently. I can connect to the Tablo with no issues on 2 desktops, 1 laptop, 2 iPads, iPhone, 1 Android tablet, and 1 Galaxy S8.
But I have one desktop where I couldn't connect to the Tablo in the Chrome browser. I cleared all browsing data, no go. I uninstalled Chrome and re-installed, no go. I have to format my computer and do a clean install of Windows before it'd connect.
Why? No idea.