You can get the latest beta test version from Google Play by clicking on the link.https://play.google.com/apps/testing/com.heleron.wifiroamingfix
When you click on the link you get a web page which gives you the option to "become a tester". After you become a tester, open Google Play on your device, select "My apps" then do "Update". The version should then be updated to the beta version.
you get a "404" page error, check whether you have joined this Google
group (Wifi Strongest Signal). You need to do this to get the beta
version and also post messages in this forum.
Note: you must be logged into the same Google account that you use on your Android device for Google Play.
If this beta solves problems, please give feedback in the topic where the problem is discussed.
You can get the alpha version instead of the beta version by joining this group:https://groups.google.com/forum/?hl=en&fromgroups=#!forum/heleron-alpha