Hi. Could you please give me more details? As of now, it won't work on newer phones because unity doesn't want to compile newer API for some reason. Also you might want to check if you have 64bit or 32bit version if you're on PC.(If you use Linux, honestly - god help you, for me Linux equals to magic) Or you may be having trouble with connecting, there might be issues with Photon engine that I use for networking, or with your connection specifically. That's pretty much all I can tell you without knowing more.
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That explains it.
The gams currently does not have an ios build at all, so of course it won't work. When you download there should be a list of files, and every one of them is for a specific platform. Excluding the beta version that was used for play testing during frequent updates. Currently you can play on PC with Windows and Linux or on Android. Hope this helps.