http://www.emperorwifi.com/2015/08/an-explanation-of-channel-and-transmit.html The use of 40 MHz channels at 5 GHz with 802.11n is fairly common practice. In most SMB deployments, unless the design...

this also a good lecture: https://www.scivision.co/wifi-channel-ssid-power-best-practices/ He recommend 40mhz on 5ghz and use only 1/4 of 2.4ghz of all AP

Yes it's what I did, created a special VLAN with own subnet. Created 2 zerotier network, one for admin the network and one just for access the server (in bridge mode could not access the server from...

Thanks, Yes The switch T1600G-PS28 Don’t forget to save the config when you finish to make setup or you will lose at reboot all the config. I mean you have to click on the safe config on the left...

Concerning hardware choice. I had to install this in Thailand where weather is hot and humidity is high. Customer always try to get the best for their bucks. So after having install 5 POE switch...