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Why Sys-Admins Are Disabling The Lights on WiFi Access Points (networkworld.com)

More than a dozen IT professionals said they've disabled the LEDs on wireless access points, according to a Network World article shared by Slashdot reader alphadogg: Some users don't want a beacon shining in their eyes as they try to get to sleep and others worry about the health effects of a blue light glowing all night. Some even resort to unplugging the gear when they're not using it.... "It seems when you are sick and laying in a hospital bed and have trouble sleeping, the single LED shining in your eyes is an issue," [says the wireless network staff specialist for Penn State College of Medicine]. "I get it and understand it..."

Network pros say they have begun asking vendors such as Cisco if they can provide an easier way to dim, rather than turn off the lights on the access points entirely, via wireless controllers. And some would like to see more granular control, such that the power light could be left on to comfort end users that the device is working, but blinking lights could be turned off or dimmed to avoid bothering them.

End users have tried "all sorts of makeshift fixes -- from Post-it notes to bandages to condom wrappers," but one network architect complains that when they disable the LEDs altogether, "I invariably get a ticket (or more) that the access point is offline and wireless is broken because there are no lights on..." On the plus side, when they then re-enable the LED lghts, "magically the wireless performance and coverage is perfect!"

17 of 294 comments (clear)

  1. Old school reflective lcd by jellomizer · · Score: 5, Insightful

    Why can't we get a strip ok old school lcd like in the digital watch of the 1980.
    It can show the info without the light.

    --
    If something is so important that you feel the need to post it on the internet... It probably isn't that important.
    1. Re: Old school reflective lcd by jellomizer · · Score: 3, Interesting

      There is a problem. You can solve it or ignore it.
      The light bothers some people however the light indicated useful info. Switching from led lights to an lcd strip can be an affordable solution to fix both problems.
      You can ignore the problem but the problem still exists. Sure it doesn't bother people enough to speak so if they are at the hospital and filling mizerable that blue LED may be annoying but they are experiencing far more annoying things. However it absence will just help the person out a little more get that extra 20 minutes of sleep.

      --
      If something is so important that you feel the need to post it on the internet... It probably isn't that important.
    2. Re: Old school reflective lcd by Rockets84 · · Score: 5, Informative

      I'm one of those sys-admins who's asked for dimming to be added to the Cisco WLC software. About 18 months ago I had a brain tumour about the size of a small orange removed. I've had a number of stays in hospital rooms since with Cisco WAP's in them. I can assure you that the LED's on those WAP's when you're trying to get to sleep are annoying as hell as they light up the whole damn room.

    3. Re:Old school reflective lcd by wolrahnaes · · Score: 3, Informative

      Make it e-paper, not LCD, then it will be readable under any light. If e-paper displays are cheap enough to put on store shelves as price tags, then they should be cheap enough to serve as a status display on a router.

      E-paper would be a terrible display for this purpose. It can't change fast enough to work as an activity light, and since it maintains an image effectively forever until updated it's not trustworthy for lower rate status monitoring like power on. If the device crashed or even powered off entirely without resetting the display first it'd look normal at a glance.

      --
      I used to get high on life, but I developed a tolerance. Now I need something stronger.
    4. Re: Old school reflective lcd by cruff · · Score: 3, Informative

      ... or mounted with LEDs facing away from people: not in a location where the LEDs will be visible from a sleeping area.

      I've been bothered by the LED on my cordless toothbrush flashing during its charge cycle, even while the (green) LED was facing away from my bed directed at a light colored wall. My master bath has an outlet that is only energized when the light fixture is on, so I either have to charge it in the bedroom during the day or take it into another room if it needs to be charged overnight. The blue lights from my workstation in another room are clearly visible at night in my bedroom if the doors to the rooms are open. Like others have mentioned, I've resorted to using colored vinyl tape to cover the overly bright LEDs on things to reduce the intensity to something reasonable.

    5. Re: Old school reflective lcd by Hognoxious · · Score: 3, Interesting

      Have you actually tried this? I've got a case fan with them and I tried multiple layers of different kinds of tape and they're still shining through.

      The darn things aren't recessed either so there's not much clearance to stick a big blob over them without fouling the fan. Plus they glow on both sides, which is an issue because the case is one of those 733t ones with a window in it. I suppose I could fit it with blinds.

      I will add that I can't actually find one of the side panels now. I was installing a new HDD and toying with changing the heatsink. How I can lose something that's half a yard square is a mystery. Should probably tidy up the lab...

      --
      Confucius say, "Find worm in apple - bad. Find half a worm - worse."
    6. Re: Old school reflective lcd by drinkypoo · · Score: 4, Funny

      being able to tell people you've had a fruit-sized chunk of brain removed...must be great in conversation.
      Glad you came out the other end.

      Holy shit! That's one crappy way to go in for brain surgery.

      --
      "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
    7. Re:Old school reflective lcd by clovis · · Score: 4, Funny

      Why can't we get a strip ok old school lcd like in the digital watch of the 1980.
      It can show the info without the light.

      Nope.
      What these devices need are nixie tubes to show you the contents of the instruction counter so you'll know if the router is running correctly or not.

    8. Re: Old school reflective lcd by TWX · · Score: 4, Informative

      a WAP is a workspace device, like a computer or TV. It cannot be concealed in wiring closet that may be as much as 300 feet away and still hope to serve the area it's needed for. Hell, I have some buildings where two floors are served by one IDF and there are close to a hundred WAPs patched.

      Modern Cisco WAPs have annoyingly bright LEDs on the workspace-facing side. I have three 3602e WAPs that I use for my home learning lab and home wifi, and I have disabled the LEDs on one and probably will on another. An option to either dim or to disable the blue color when not in a fault state would prevent having to do that.

      --
      Do not look into laser with remaining eye.
    9. Re: Old school reflective lcd by fahrbot-bot · · Score: 3, Informative

      I've had good success using a black Sharpie (permanent marker) to "dim" the output by coloring all over the bulb.

      --
      It must have been something you assimilated. . . .
  2. Good ole ink by Mr+D+from+63 · · Score: 4, Interesting

    I just use a black marker to darken the surface. You can essentially black them out or leave a little light passing through.

  3. Slow news day? by wonkey_monkey · · Score: 4, Informative

    So, it has come to this. An article on Slashdot about covering up blinking lights.

    one network architect complains that when they disable the LEDs altogether, "I invariably get a ticket (or more) that the access point is offline and wireless is broken because there are no lights on..."

    Then cover them with black masking tape. Voila, no lights. Plus, everyone can see why there are no lights, so they won't be psychologically fooled into thinking the thing isn't working. And if there really is a problem, they can peel back the tape and have a look.

    Bloody hell...

    --
    systemd is Roko's Basilisk.
    1. Re:Slow news day? by itsdapead · · Score: 4, Insightful

      So, it has come to this. An article on Slashdot about covering up blinking lights.

      Blinking lights were great before some bright spark invented those bloody ultra-bright blue and white LEDs and electrical equipment designers started indulging their fantasies of making their devices look like the mothership in Close Encounters, right down to the sunburn. Meanwhile, us slashdotters are getting older and starting to feel the effects of decades of staring at flickery screens...

      Seriously guys, if the status light is casting visible shadows then its just out-and-out sloppy design. I've even had this on a HP monitor: ridiculous dazzling blue power light on the front of a monitor, with option to disable the light (so obviously people have complained) ...meaning you can't tell if the monitor is switched on at all.

      And, yeah, I thank god for those little stand-up cards in hotel rooms saying "Here at PlasticHotelCorp we passionately believe that inane motivational slogans are a great substitute for actual quality" which are ideal for standing in front of the various TVs, clocks and other power lights opposite the bed.

      --
      In a survey of 100 programmers, 111111 thought that duck-typing was a good idea.
  4. Dim based on light conditions by Anonymous Coward · · Score: 3, Insightful

    They should add light sensor and dim based on that. iPhone display does that btw.

  5. Has slashdot hit rock bottom? by burtosis · · Score: 5, Funny

    I've been reading slashdot for years and I've never seen a story about blinking lights and not much else.

  6. Re:Does anyone make tinting tape? by Dagger2 · · Score: 3, Informative

    Not quite a roll of tape, but check out LightDims. You get one set of stickers that dim "50-80%" (or rather three sets, in black, silver and white) and another set that, as far as I can tell, are completely opaque.

    They only really stick on flat surfaces, but they look better than using a random bit of tape, and the opaque ones really are opaque.

  7. Re:Um by waveclaw · · Score: 4, Insightful
    Is the problem of cheap blue LEDs News worthy? The conversation certainly is. News can inform but need not always be just current events, particularly on the Internet where nothing is paper.

    Slashdot is a news aggregation site. Ostensibly for 'News for nerds, stuff that matters' at founding. In practice is was a blog for Rob Malda, CmdrTaco. It was also a website with an accidentally really good commenting technology.

    Been around long enough to see the jokes about not reading the article? Then you have probably been around long enough to see the argument that a lot of the people still visiting the site do so for the conversation in the articles. They provide everything from group-think arguments, good counter-arguments and funny jokes about the topic to warnings about click-bait, pay-wall free options and corrected sources.

    If Slashdot had ever depended upon the quality of the articles it would have failed when it was still Chips-n-Dips hosted on a university student account. The commenting system is more than a chance to keep up your HTML skillz. People in the know are really providing the value. (Queue complaints about Facebook's model, etc.) However, getting quality articles is important to attracting the readership that does not know about the site.

    For instance, this article currently doesn't shows up in Google search for annoying LEDs, being a day old. But the top link is for lifehacks.stackexchange.com for whatever reason. Stackechange and Amazon dominate the front page. I almost feel sorry for companies with products on that page. Even with no such thing as bad marketing, being known for having annoying lights on your non-party-joke product is not a good thing.

    The Blue LED backlash article on McConnell's blog is page three. And he discusses a vendor that sells low intensity LEDs for computer products. But I expect - or at least hope - this slashdot article to make it to at least page three with McConnell's blog if not higher.

    --

    "You cannot have a General Will unless you have shared experiences. You cannot be fair to people you don't know."