THE BAD-FI

DIY PoE!

From the, “I’m Gonna Kill Myself”, Files:
 

WTF???? pic.twitter.com/be36cN96L0

— Frǝdo (@0x9900)

June 23, 2015

 


What did whoever made this CABLE OF DEATH think was gonna happen when he/she plugged it in? “Oh, I get it: POWER. OVER ETHERNET!”

 

“One of the examples of the high quality installation work encountered when auditing a public wifi network at a large student accommodation facility recently.”SUBMITTED BY: @TheEvertBopp—RF device in metal box.How. Does. This. Keep. Happening?

“One of the examples of the high quality installation work encountered when auditing a public wifi network at a large student accommodation facility recently.”

SUBMITTED BY: @TheEvertBopp

—

RF device in metal box.

How. Does. This. Keep. Happening?

Help Keep the BAD-FI Away!

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Aerohive Networks is offering this free WLAN Troubleshooting and Design Guide authored by CWNE #4 David Coleman and CWNE #7 David Westcott. This is actually chapter 12 of the Certified Wireless Network Administrator Guide (CWNA). 

We would recommend buying the CWNA Study Guide to anyone who interested in, or has the responsibility of managing, WLAN. Put it on your shelf next to your copy of “Microsoft Exchange for Dummies” 😬. Read a chapter a day and you’ll be amazed how much you’ll learn and come to understand about how wireless works.

Either way, take advantage of this free download and the generosity of Aerohive Networks. Way to go guys! 👍

DOWNLOAD NOW!

Short and SWEET. Just the way I like it. Why wireless access points are not “WAP"s. They’re just "AP"s. — CHECK OUT http://banwaps.com

Short and SWEET. Just the way I like it. Why wireless access points are not “WAP"s. They’re just "AP"s. — CHECK OUT http://banwaps.com

Here is one reason not to believe someone when they say the wall is “just drywall” pic.twitter.com/IVlqLRPD2V— Aaron Scott (@wifidownunder) July 13, 2015 If you’re doing “Predictive Surveys” (really “Predictive Models”) then you owe it to yourself t…

If you’re doing “Predictive Surveys” (really “Predictive Models”) then you owe it to yourself to survey your location and make sure your walls are what you think they are.

If someone is “designing” you a WLAN and they don’t take the time to gather as much real data from the deployment site - you more than likely not going to like the results.

For a good primer on how to survey for wall attenuation (loss) to provide accurate data for predictive models check out @DevinAkin’s​ blog.

This coffeeshop has  Airport which is fine. Having the admin password be the same as the PSK? Not so much. 👎😱

This coffeeshop has  Airport which is fine.

Having the admin password be the same as the PSK?

Not so much. 👎😱

So, if you’re wondering why your hotel wi-fi sucks it’s probably because of this. By the numbering scheme it looks like each of these is an individual AP broadcasting its own SSID. I can’t even imagine how bad the Wi-Fi is, and I…

So, if you’re wondering why your hotel wi-fi sucks it’s probably because of this.

By the numbering scheme it looks like each of these is an individual AP broadcasting its own SSID. I can’t even imagine how bad the Wi-Fi is, and I don’t even want to think about having to manage all these individual access points! 😱

via Twitter from @RevolutionWiFi

Went to enjoy a ball game. Overheard someone complaining that their ticket scanners weren’t working right…..*sigh*

Went to enjoy a ball game. Overheard someone complaining that their ticket scanners weren’t working right…..*sigh*

@HeyEddie Howdy Neighbour! (Repeated every 15m down the corridor) pic.twitter.com/vnBGSiesed— Will Jones (@wjcomms) May 31, 2015 — Again with the APs in hallways? EVEN WORSE they are on the walls (incorrectly installed because of the antenna …



—

Again with the APs in hallways?

EVEN WORSE they are on the walls (incorrectly installed because of the antenna pattern) and THEY ARE FACING EACHOTHER! Even if CCI weren’t an issue (it is) ACI (Adjacent Channel Interfernce) is more than likely gonna be an issue.

This is repeated about every 50ft down the halls.

Can you imagine having someone screaming in your face EVERY SINGLE MINUTE OF EVERY SINGLE DAY?

All one can do at this point is ¯\_(ツ)_/¯.

Insert ridicule below pic.twitter.com/aRtI7qEPhr— Primoz (@jazzycow81) May 30, 2015 — It’s the little things, really. Like, knowing how to properly align your antennas. Yes, it MATTERS how the antennas are positioned. In this case,…

— It’s the little things, really.

Like, knowing how to properly align your antennas.

Yes, it MATTERS how the antennas are positioned. In this case, dipole-omnis, they should all have the same polarization, and be facing the same direction - down.

Dipole-Omnis have a doughnut shaped pattern. So, if your antennas are horizontal with the ceiling, you essentialy have a doughnut-shape up and down (narrow). Set them down (perpendicular to the ceiling) the doughnut is now flat and wide, giving you much larger coverage area.

Check out Antenna-Theory.com

BONUS: Learn the Macarana!

Xirrus v2? 5G+5G+5G+2.4G tied into one antenna, indoors, no HD areas. #ACI but no adv that I can think of. @Blackbox pic.twitter.com/xLJuzMdxgO— Devin Akin (@DevinAkin) May 28, 2015 — This lovely install (brought to you by the geniuses at B…

— This lovely install (brought to you by the geniuses at BlackBox) was at a hospital complaining about the horrible, unusable Wi-Fi.

Three APs on ONE antenna.

Do. Not. Do. This!

This isn’t even a DAS (Distributed Antenna System)! It’s right there! There’s nothing distributed!

You’re not gonna get more capacity!

All you’re gonna get is $$$$ out of your checking account to the salesperson hat sold this.

Oy.