I have only two Meraki Go installs and both of them are super flaky and intermittent with the 'test connection' feature. I have GX20, GR10 and GS110 and two different customer's sites and sometimes the test connection works and most of the time it doesn't. I guess I just want to vent here because it makes troubleshooting much more difficult when you can't trust the test feature. I have had the same results with cable tests from the switch ports too. I can run the test 10 times and maybe 1 or 2 times it works and the rest say it is having trouble reaching Meraki Go? WTF??
It definitely helps to vent, and we're here to listen and help as best we can. These failures are certainly not the experience I or any of my team want for you and your customers using Meraki Go. This behavior most certainly deserves more attention with a support case. Definitely open up a ticket so we can better help you:
Another facet of this problem is the vague error "having trouble reaching Meraki Go". To partially resolve this issue, we'll be including a new feature to submit error reports when these vague errors occur. This will help our support team, and yourself, pin down the exact nature of these problems in a more rapid timeframe. The functionality is in place and we're actively working to implement the tool in situations much like these.