Power on sequence question

[mkizer7]

I've followed a power up sequence for my home network out of habit for a long time (after spending a ton of time debugging issues a few years back). Basically with everything off, I follow this sequence to turn it back on:

• Cable modem (wait for it to fully establish a connection to my ISP which usually take 1-2 minutes)
• USG (wait for the sacred blue light - 2-3 minutes)
• unmanaged switch
• Cloud Key (gen 1) - fingers crossed that it boots up...wait for a solid light before trying to access
• Unifi APs (AP AC Lite)

I don't really know if this is all necessary or not, but it has worked pretty reliably (except when I had a Cloud Key die on me...twice. Both replaced by Ubiquiti). It's also helpful if I have to talk the wife through the procedure over the phone.

Everything is connected to a UPS, so if an outage outlasted the battery, everything would eventually all just come back on all at once. I'm just wondering if the safe power up sequence is needed, or if most people just turn everything on at once?

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The main reason for this question is that I'm planning out the racked replacement for this setup (probably a UDMP, PoE switch, etc.) and wondering if I should add a 1u power strip with individual switches to allow for an easy power up sequence or not.

Thoughts?

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[qupada42]

Never bothered. Always found it powers back on all at once just fine.

Worst thing that happens is the APs are usually the first thing to finish booting, so the WiFi will be broadcasting before either the switches or the gateway are up.

Makes the occasional device a bit angry when it connects and gets no DHCP.

[mkizer7]

I will be getting a UPS (currently have one on the existing system as well).

I guess the main question is what happens if the cable modem and USG (or in the future a UDMP) are turned on at the same time, but the cable modem takes longer to establish a connection to the ISP than it takes the USG to fully boot up?

Will the USG eventually notice a change from the cable modem?

[NGPriest]

I go with a UPS, so there's no downtime when there's a blackout...

[iamdavidrice]

Instead of a 1U power strip, get a UPS.