Steve,

That figure sounds high. I would expect no DOAs on enterprise APs. We are an 
Aruba shop and do not remember any APs failing that early. We currently have 
over 1500 802.11n APs deployed.

Bruce Osborne
Network Engineer - Wireless Team
IT Network Services

(434) 592-4229

LIBERTY UNIVERSITY
Training Champions for Christ since 1971

-----Original Message-----
From: Steve Bohrer [mailto:[email protected]] 
Sent: Thursday, January 30, 2014 10:49 PM
Subject: Typical new AP failure rates?

Is ~2% early failures in a batch of APs typical, or should I be concerned about 
a manufacturing defect or some unknown external factor?

We're small enough that we've never before bought more than 15 or 20 new APs at 
once, so haven't previously had any early failures. However, we've just 
upgraded our full wifi system, and I have two dead out of 105 APs after a 
couple weeks. Not DOA, but they ran each ran for several days, and then went of 
line.

They're obviously still under warranty, so all I can do is wait and see how 
widespread this problem will be, but I'm not sure how much to worry! 
Hopefully after failures during initial burn-in, the rest of the APs will all 
last a long time.

A few basic Google attempts didn't yield stats for initial and longer-term 
enterprise AP failure rates, so I'm curious about what you bigger schools 
experience, and how much variation there is by model and vendor. Are 3x3 and ac 
radios more failure prone than simpler, perhaps cooler running, gear? I 
generally expect some APs to fail every once in a while, but as far as I know, 
no vendor has a reputation of being much better or worse than the rest.

If those of you who've been buying thousands of APs for years have data you can 
share, we may get at least an anecdotal feel for typical failure rates, and 
perhaps a sense of variation by vendor and product.

Thanks,
Steve Bohrer
Network Admin, ITS
Bard College at Simon's Rock

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