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Blinking power light (I searched!!!)

Discussion in 'Cisco/Linksys Wireless Routers' started by odessit, Jan 24, 2006.

  1. odessit

    odessit Network Guru Member

    I did searched the entire forum and could not find the answer.
    I have wrt54gs v1.1 with Alchemy Public 1.0 for almost a year now. Alchemy installation was good without any issues. Router works good.

    But there is a problem every now and than. Every time there is a short power loss and the router theoretically should just reboot – the power light starts blinking and I am loosing all router functionality. After that I need to make hard reset: pressing and holding reset button and unplugging the power and plugging it again. And even that will not always work the first time. Sometimes it takes me 10 – 15 attempts like that in order to bring the router to life.

    Yes, I do have UPS now for those who will suggest that. But still it should not behave like this. I did searched the forum, found good articles how to bring the router to life. But not even one post explaining the reason behind this behavior. It seems that it is very sensitive to the power loss.

    Anyone can explain that and maybe recommend a way to fix this?

  2. odessit

    odessit Network Guru Member

    Amazing. Since I joined this forum I asked only 2 (two) technical questions, and no one could answer any of them. So many experts here… or “experts”…
  3. vincentfox

    vincentfox Network Guru Member

    And what if none of us have ever encountered your particular problem?

    Without a UPS, there is something called a "brownout" where the voltage sags enough to cause problems but not to zero, nor for long enough, to trigger a reset. Brownouts are bad for electronics because it may end up in indeterminate state.

    I have never experienced similar problems with a UPS attached, but I usually use the better APC models. Does your UPS report power-events in it's logs at the time?

    A dodgy voltage regulator or capacitor on the WRT itself would be my last suspects on the list. If you have a defective unit, then replace it.

    And next time, consider calling Linksys. They actually get PAID to answer questions. Those of us who do it for fun, tend to pick what questions we feel like answering. And we may not like being called "experts" either.
  4. odessit

    odessit Network Guru Member

    My apologies for offending you. I suspected this reaction, which is absolutely fair.

    Ever since I started to use UPS (APC) I never had that problem. But recently we had a power outage that lasted for about 8 hours (very unusual in my area), so I simply powered down all of my equipment including router until power was restored. And sure enough after I powered everything up the router again was screwed up. Took me at least 15 reboot attempts until it came back to life. So, simply powering down and turning it back on is causing this problem. I just wanted to know if it is an isolated case or problem is known. Again I apologize for offending you. I was totally out of line.

    P.S. Calling Linksys support is useless. When I called about my first problem they even denied the files belong to their product.
  5. vincentfox

    vincentfox Network Guru Member

    And we are back to the point that you may simply have a defective unit. If it's under warranty, get it replaced. If not, buy a new one.

    A few years ago there was a problem with computer motherboards. Quite a lot of them were developing bad caps after a few years of operation. You could tell easily by looking because the top of the capacitor would be bulging or actually burst open. Caused increasingly unstable (although not dead) operation as the first few burnt out. In our operation it was judged cheaper to replace the motherboards than fix the capacitor.

    Modern low-end consumer electronics device, statistically speaking, just do not last forever. Many of the components used have a limited lifetime.

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