Tidal has been sucky here as well. Doesn't matter--computers, smartphones, etc., it throws a message, something like "no network connection". Search results often don't load, music drops out continuously, etc. I can stream from anywhere else on the Internet with no problems. (On a computer, streaming through a browser is only marginally better; still nowhere near as reliable as it used to be.)
I'll probably just find someone else for streaming lossless at this point. I'm not going to dick around with uninstalling/reinstalling all the time when something doesn't work.