I am running Indigo7 on a headless Mac Mini running OS 10.12.6 (16G29) and it has been stable for a long time now with no connection problems.
The issue showed up a few weeks ago when I could connect on local network but not from the internet at what seemed random and then not from either source.
Finally had time to dig in and found the Mini firewall was the issue, the stock Apple one. It had been set during the original set up to allow all of the Indigo programs full access and those settings worked fine up to a few weeks ago.
Now I have to turn off the Mini firewall to get things working again. I can't seem to find any further programs to 'allow' and keep it on.
I know I must be overlooking some simple setting or 'allow' setting.
Any ideas?
TIA for any ideas.
Ken