Code 1016 on MacBook

can’t log in, code 1016. I’m playing on Mac. can you help me??

FYI, there is a support forum for Mac: Mac Technical Support

1016 is a generic code for connection issues.
You may try troubleshooting first: Diablo III Disconnection Problems

You may run WinMTR to diagnose network: Running WinMTR
Paste the result between two “~~~” lines, like this:

~~~
paste report here
~~~