Question about Western Digital 500GB My Book World Edition 500 GB Hard Drive

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My WD 500GB My book (world edition) keeps going offline

My WD My Book (world Edition) only stays online for less than a day. It is only a month and a half old. To get it to be recognized by the Mionet software (WD's newly aquired company)I must power it down and then back up. When I go to access it later in the night, it is again offline. I have emailed WD twice and have NEVER gotten a reply (Over 1.5 weeks) Thank you

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  • Sparky311 Oct 13, 2007

    to connect to the hard drive (from the local network), I went to the start menu then run and typed \\mybookworld   (which is the default name of the book.  This always worked for me (it was the mionet drive mapping that was inconsistent.  I then ran an extension cord from another household circuit to the drive only and restarted my mionet connection (I didn't have a problem for at least two days).  This told me that it was a power issue (probably a bad choice of power supply for WD).  I then redid how everything was plugged up on the old circuit by trying to put this POS WD drive on a power strip with as few of other low energy consuming things as possible and plugging that power strip directly into a socket.  So far it is working.

  • catfreak Apr 03, 2008


    I have exactly the same problem and got no answer from WD.

    I found this post and changed the socket

    Also I will format the disk. It did cost me a lot off time up to no trouble shouting. I hope your remarks work.


  • Anonymous May 02, 2008

    I have exactly the same problem. I don't think the power supply is the trouble maker in my case, I have my WorldBook II 1Tb plugged to a no break and only stays active for some hours, then I have to switch it off and then on again. So much for "world wide access"! I am very disappointed and confused. I hope the trouble of going through reformatting it an resetting the whole thing fixes the devices.

  • randyWCG Nov 30, 2008

    Ditto, have had mine for less than a month. Have NEVER been able to get an online indication, although the WD Backup indicates it's running. I cannot get into WD anywhere.

  • Anonymous Dec 07, 2008

    having the same problem.

    notified that the device can not be pinged: seems to drop out of the network.

    Bought it. seems to have this problem. Didn't have time.
    Installed it yesterday again (after a year. Immediately did a firmware upgrade. it worked that day

    this morning: no connection, no ping, no connection LED's on the Ethernet adapter. The thing is just dead!

    As it's yet out of warranty (got is for over a year now, just filling the shelf). I can not claim anything.

    ANYONE have a solution??

  • Anonymous Feb 04, 2009

    From day 1 mionet does not stay on line. very frustrating to not be able to access MY files when I want to. I have in the past rebouted my computer and the external hard drive, sometimes that works. I have tried to connect it to my computer directly using the ethernet cable, I have not been successful with this at all. I have called Western Digital and was told they are having problems with Mionet and that I sould connect the hardrive directly to the computer but he could not help me to do this!

  • hand1e May 11, 2010

    I know power supply is not the issue on mine, I also have a 400GB MyBook with the same power supply. I swapped them, and my 400GB powers on, but my 1TB will not power on with either. Randomly it powers on after unplugging and replugging all cables and restarting my computer 3 times, and I get about 1.5 hours of use. This same process does not work the next time. For the love of god how do I use this incredibly expensive hard drive?



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Is your drive warm/hot like mine was/is ?
Mine dropped offline 2 or 3 times a week.
Put a small fan blowing on it.... been up for two weeks now.

Posted on Nov 06, 2008

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My 1TB version was working great up until last week. This was when I moved my computer setup across the room.
After that I was having the hard drive drop off the network quite often, while downloading, watching a movie from it etc.. I would have to unplug and restart it and all would work for a few hours.
I tried upgrading the firmware with no change, in fact I think that caused it to go offline faster.

I decided to spend some time to investigate and noticed that the AC adapter also fits in my cable modem. I swapped them around and my hartd rive has not gone offline since.
I must have mixed the two AC's up during the move. Atleast I don't have to go buy another HD....
Check this before you try anything else.

Posted on Nov 23, 2010

  • KaffeMyers Jan 04, 2011

    Seems like we did the same thing, switched the power supply cables which incapacitated the drive. It works perfectly with the original WD cables.


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I have a My World Book II 1 TB
Same issues. I have MAC and PC clients and this piece of **** keeps dropping off the network! i should have just bought some cheap chinese **** - at least i would have expected these headaches. I am probably going to remove the two 500 gig HDs and put them in some enclosures. I can't believe the might WD released such a shoddy product.

Posted on Jul 27, 2008

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Hi to all.
I've found this in .
You may have ssh access to your WD My Book World edition and login (login is all in uppercase) and execute as root (doing a su because root has not password):
umount /dev/md4
tune2fs -O ^has_journal /dev/md4
tune2fs -j /dev/md4
mount /dev/md4 /shares/internal

It will fix the problem with journal (I hope it).
That solved MY problem.

Thanks and sorry for my very bad english, but I'm only trying to help others.

Posted on Jul 05, 2008

For Gods Sake!!!

DOES NO ******* BODY on the internet knows what about the vista X64 Drivers for this ******* WD 500GB thing i bought???? OMG? Mionet. Lazy bastards. GO WORK ON YOUR PRODUCTS AND ACTUALLY START RUNNING A REAL SERVICE & SUPPORT

Posted on Aug 11, 2008

Wot do u do when you are offline and 3/4 full of data and already got mionet on computer xp x64 and cannot access data thru mybookworld because it doesn't recognise my mionet password or is there someother password required?

Posted on Jun 28, 2008

This product is a disgrace. First, because the notion that no-one would want to store more than 1000 files in a directory or subdirectory on a 1TB drive is bizarre. Second because MioNet won't work with Vista x64 which is bundled on all new high end computers. Third because MioNet is infuriating even when used from a PC running Windows XP Pro x86. Like many others around the world, I have found that MioNet in Manage mode just reports the drive as OFFLINE and that's the last you will ever see of your drive or data written with MioNet directories. You can get limited usage out of it with SAMBA access by using your browser to open \\MyBookWorld and running the bult-in drive management utility, BUT and it is a critical BUT, the drive will still not work with most backup software, even though network attached storage is what most home users want to use for backup.

So, in short, unless you just want to use this drive for shared storage of unimportant files on a home network and don't need it for backup purposes, go ahead and use it but don't install MioNet whatever you do - only use the native utility at \\MyBookWorld!!

Posted on Jun 23, 2008

I have come across lots of problems with the WD MyBook range. The bulk of problems are caused by WD being lazy and not informing thier customers properly.
When you buy a WD MyBook it comes pre-formatted by an Apple Mac so both Windows and Mac workstations are supposed to be able to access it.
The reality is that if you are using it on a Windows PC after a while it will start playing up and doing weird things (like sometimes showing up/sometimes not).
What you are supposed to do if you are using a Windows PC (which WD recommend but forgets to tell you on any MyBook packaging/docs) is to do a full format before ever using it.
***If you havent done so and already have data on the MyBook, this will be erased if you format without backing this data up beforehand.***
After formatting it you need to ensure that you always remove the device safely before unplugging it. This is an irritating Windows design flaw, where if you don't remove the device safely it could corrupt the data on part of the drive and it might never be recognised by your PC again.
So I suppose what I'm trying to tell you is if you have any valuable data, like family photos and things that can't be replaced , that you think is safe by saving it on your MyBook. Don't! The same goes for any media, especially USB HDD's. The only thing you can do is do multiple backups, don't just save them in one place. Save you valuable data on cd's and store them somewhere safe.
That being said, WD MyBooks are great value for money and on the whole a good product. As long as you look after it and treat it well it should last you a long time.
I hope this helps you if problems arrise again.

Posted on Oct 28, 2007

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I had the same problem. After contacting e-mail support at WD they suggested an exchange under warranty. The replacement unit was 50% bigger (750gb) and it has worked perfectly from the day it was switched on.

Posted on Oct 03, 2008

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