A key using self-powered USB causes the base station go "off-line".

I found that by using a USB drive self-powered, as the WD My Passport, without a USB powered, hub attached to the base of the station USB port has caused the base station go "off-line". In fact, using a powered hub does not always remedy the situation, but it is more reproducible without one.

This is true for the AirPort Extreme and Time Capsule 802.11ac. The problem does not occur immediately, but it may happen over several days. The symptom is that the player is no longer lies in the Finder, or the base station appears in AirPort Utility.

My question is if others have had the same results? ... and did you find permanent solutions?

USB key "seems" less reliable on the airports of AC model than on previous versions.

I tend to not use USB attached to routers because I think it's convenient mediocre and poor speeds. But I tested with previous models, and it seems ok...

KT those a few posts here a me trial there. These are not self powered readers... who I have long recommended people avoid the use (without a powered hub)...

Re: External backup drive down regularly

In fact, the wire is different from what I remember... Age don't you know.

But I did the test on an AC TC. The result has been very reliable. He did not cause the TC to close... but I lost the connection of the USB almost every day... except for a trial where I kept the USB drive mounted in the Finder... so that the USB drive wouldn't turn it down. He then worked for a few weeks... until what the noise of rotation of disk (sitting next to me) drove me crazy... as soon as he was mounted is more, he would pass the same existence as before.

The previous model TC was barely big enough for the internal use of the power supply units. So powered car running disc was impossible.

Provide EI (GEN 1-5) at 1. 8A and 12v was adequate, but the standard USB port is estimated at 500 my wrong to manage disks free power.

You would certainly think AC 12v 5A power supply models would have a lot of power. Yet, power problems are a major problem still. Supply is extremely sensitive and stop easily for reasons I'm still to understand.

Where the long threads on power issues to the AE.

Now, I'm going to speculate... I think that SOME problems are associated with power.

What is the USB port side in airports of AC? Is it still 500ma? Apple never seem to give easy to find info on these details.

Do you know? I haven't measured it, but I can try timing the time it takes to charge a phone.  Assuming that it will immediately trigger.

Then he will have problems with a self-powered drive. Even if the drive has less energy than quotes, current during starting is much higher. The restriction of the power on the USB port is managed by a self regulator recovery... Once you triggered it, you must stop the power... then reboot the machine to restore power.

Then, I also did the test with hub powered... and like your results... It was better. Longer time between the drive disappears from the network. But it was not enough to stop it.

There is another interesting effect using self-powered hubs... I discovered this on a computer running Mac OS lets say! The computer would not start with a powered hub connected to the front USB. Hubs self-powered cheap, showing a defect in their design. They can refer to the USB port. In this computer, it was enough to stumble on the good power circuit and prevent the supply, commissioning... As long as the computer is running, everything was fine... but if I turned off it would not start. I finally woke up I had to exit the USB every time. At one point, I made a "special" Cup USB cable 5v line so the hub can stay connected. You can probably just to isolate the 5v of contact in the USB. Regardless of the configuration of power USB in the AE or TC is as you can assume she's sensitive enough... and at any time when the 5V on USB hub exceeds the 5V in AE it could trigger.

The symptom is that the player is no longer lies in the Finder, or the base station appears in AirPort Utility.

Endangered of AU base station is not uncommon.

It responds to the pings? I guess he still has lights but is he blocked? You still get internet through it?

Try to open it manually in to THE... use of the file / configure from others and put the IP address of EI.

Talk with me by e-mail... It is open in the profile.

Tags: Wireless

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