Question about internet sharing in macOS

hallux

macrumors 68030
Original poster
Apr 25, 2012
2,782
489
Background - I have an Asus router that is dropping the 2.4 Ghz band multiple times a day. This probably wouldn't be an issue for most people except I have two devices that will only work on that band. After some run-around with Asus over the last week it's finally been determined they will take responsibility and take care of the issue - by having me send my router to them for repair, leaving me without wireless/internet for 2 weeks!

OK, 2 weeks without internet? HAHA! I use streaming services for TV, that's not really an option. So, I'm trying to find a stop-gap. The option of internet sharing has bubbled up since I have a Mac Mini I can (and do) hard-wire, but will my 2012 Mac Mini support sharing over both 5 Ghz and 2.4 Ghz? Will I need to pick one or the other? I'm just not thrilled with exposing a computer directly to the internet like that.

Worst-case, I still have my WRT54GL someplace but I think I was having trouble with it when I decided to replace it. Could I use the WRT54GL between the modem and the Mini and use the Mac Mini as my WiFi AP?
 

barbu

macrumors 6502
Jul 8, 2013
489
552
wpg.mb.ca
I think you can safely enable Internet sharing on the mini without any further config changes (no need to hang mini directly off the internet). The thing will be that clients connecting to the mini's AP will be double-NATed. This may or may not be a problem, but certainly worth trying as a stop gap measure.
I am pretty sure minis had dual band wifi by 2012 but I haven't checked. It will certainly support at least 2.4 tho, so you should be OK.
 

barbu

macrumors 6502
Jul 8, 2013
489
552
wpg.mb.ca
Except I'll need to send my Asus router in for service so I'll lose that layer...
ah sorry, of course.
Putting the mini on the net should not be a problem. Just make sure all remote services are disabled (unless you know what you're doing). My iMac has been running services exposed to net 24/7 for years, you should be OK.