I've been looking for one myself to replace my piece of shit Ubiquiti Edgerouter X that crashes all the time, what is everyone's opinion on using used enterprise UTM firewalls from manufacturers like SonicWALL or Fortinet?
I absolutely hate sonicwall. I had to manage a bunch of those at various sites for a long time and they never seemed to work "right". First chance I had I replaced them all with MikroTek (only thing they would be willing to spend money on since they were so cheap but actually worked).
Personally, my primary concerns, and there are many, would be stuff like power usage, noise, security (still getting patches?), size, price, and availability. If those things all check out I would consider it.
An issue with those I found is that they usually need a paid subscription if you want to use any of the UTM selling points, or they are often still registered to an organization or msp with no possibility of transferring licensing ownership, they can be used as regular firewall appliances otherwise.
I've used Asus routers running AsusWRT-Merlin for years. The uptimes are as long as it is between firmware updates. The range is incredible compared to shit routers. I'm in a suburban environment with a dozen or more APs visible from my home and still get about 200 feet of range in 2.4 GHz. The best Asus router right now is the RT-AX86U. It is years newer than the larger RT-AX88U.
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