I want to share an internet connection that my iMac gets via Ethernet over WiFi, so that I can connect to it with other devices.
I went into System Preferences > Sharing > Internet Sharing on the iMac and turned it on for sharing Ethernet over WiFi, but I'm finding it unreliable.
Particularly, the internet connection of devices connected to the WiFi created by the iMac seem to randomly die, even though the iMac still connects to the internet just fine. Note that the WiFi created by the iMac itself is always visible, it just doesn't seem to provide access to the internet after a while, even though it should, since the iMac sharing the connection can access the internet just fine.
What could be wrong?