OS X :: External Hdd Randomly Disconnects?

May 18, 2009

I own a few external harddrives, however one in particular (western digital 2tb) will randomly disconnect and a window will show about "device removal with the red little stop sign shape" then it will randomly connect again (and sometimes i have to physically unplug it and plug it back in), does anyone know what is going on here? None of the cables are being touched, it's really strange, the only thing i can think of, is maybe i have a loose usb cable and need to replace it? or maybe a faulty usb port?

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IMac :: External USB Drive Disconnects Randomly

Jun 12, 2010

I have had my new iMac 21.5" for about 2 weeks now. Yesterday I picked up a 500 GB LaCie USB Drive to be used for my Time Machine drive. I have the drive connected directly to a usb port on the iMac. Sometimes when the iMac goes to sleep, when I wake up the iMac I get the dreaded "This Drive Has Not Been Disconnected Properly" warning.

I have made sure that the "Put Hard Disk(s) to Sleep Whenever Possible" option is not selected under the Energy Preferences. I have tried multiple usb ports, same issue. This isn't a constant issue, it just happens sometimes. Is there anyway to tell Time Machine to mount and unmount my drive when needed?

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MacBook Pro :: OS X Mavericks (10.9.4) External Drive Randomly Disconnects

Aug 24, 2014

I have a external SATA drive that was used on my old Windows laptop. The interface for the drive is USB 3.0. Whenever i try to view my files on the drive, the drive randomly disconnects, and notifications pop up saying that the drive was not ejected properly.

Also the drive has been reformatted to a Mac format, but it still continues to do this.

MacBook Pro with Retina display, OS X Mavericks (10.9.4)

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OS X :: Airport Randomly Disconnects - How To Repair

Jul 22, 2009

I recently purchased the $1699 Macbook Pro a couple of weeks back and now it seems that my airport randomly turns off. I can't even get it to turn back on; I have to restart my macbook to get it working again.

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OS X V10.7 Lion :: Disconnects IMac Randomly From WiFi?

Apr 29, 2012

Randomly, my computer seems to be disconnected from my wi-fi network. It is not a routeur problem since every other devices still work when the computer doesn't.

iMac late 2009 (first 21.5" generation) OS X Lion 10.7.3

iMac (21.5-inch Late 2009), Mac OS X (10.7.3)

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OS X V10.7 Lion :: IMac Randomly Disconnects From Internet (WiFi Via BT Hub)

May 26, 2012

My brand new imac randomly disconnects from the internet. We have a BT hub - wifi. I have googled this issue and see that it is relatively common and it is incredibly frustrating. It is fairly simple to reconnect each time but it is driving me mad having to. It generally happens when the computer is asleep but sometimes in the middle of doing something.


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PowerPC :: Airport Disconnects Randomly - Reconnect Attempts Time Out

Aug 27, 2010

So, after getting it hooked up and connected to my router, which is set to only allow only 4 devices to have access to it (my comp, iphone, wii, and gf's laptop), i find that my gf's laptop (which is the only device using a corded connection) is the only machine able to get online without problems now.

I can pick up my WiFi network occasionally after a restart, but then it usually goes out after a random amount of time... anywhere between 10 minutes to an hour or 2.

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PowerPC :: Ethernet Not Working Properly - Randomly Connects / Disconnects

Oct 11, 2006

I've been having problems staying connected on my Powerbook G4. The wireless works perfectly but the ethernet does not. I've been using the dorm ethernet jack to connect. The problem is that my computer can't maintain a consistent connection through ethernet so it randomly connects and disconnects. I called my campus' IT department and they told me that it must be my computer because they're system said that it didn't detect my computers IP address. I called Applecare and the person told me that it must be something wrong with either the network card or the ethernet port. Anyway, he gives me a case number so I can go get a repair. Unfortunately an Apple Store is far away from where my school is so I went to my school's bookstore instead.

The bookstore is an authorized service place. I drop the computer off to them and they sent it to Apple. I got a call today from the bookstore guy saying that the Apple technicians discovered that "liquid" had gotten into the motherboard and refused to service my computer. I was really angry when I heard this because I keep absolute care of my laptop. I know for a fact that no water has ever been around my laptop. I'm guessing it must have been negligence on the bookstore's part. I declined the $1300+ repair estimate so now its on its way back to me. I have a brother that works at the Apple Store and he just suggested going directly to an Apple Store this time. Will they just refuse warranty repair again?

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MacBook Pro :: System Randomly Disconnects Usb Device / Port Fails To Recognize IPhone

Dec 15, 2010

I have had several issues with the USB on my brand-new Core i5 macbook pro. It randomly disconnects USB devices. I've had the issue with multiple USB devices - same story with each one. Further, iTunes will only recognize my iPhone if it is in the port nearest the magsafe connector. The other port fails to recognize my iPhone entirely. Anyone else having a USB issue on their base 15" that was released today?

Furthermore, any suggestions of what to do about it? I'm having a hell of a time restoring my iPhone with this issue... And the Apple Store is over an hour away-I planned a special trip to buy this laptop.

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Mac Pro :: External SATA Drive Spontaneously Disconnects

Oct 2, 2009

Machine is an early 2008 Mac Pro. I'm connecting two external SATA desktop hard drives via eSATA (NewerTech Voyager S2 enclosures) and a Newer Technology eSATA Extender Cable (connected to the 5th and 6th internal SATA headers). One of the drives is used as a Time Machine backup disk. This TM disk has been periodically disconnecting and generating warning messages about improper ejection. It reconnects with a restart, but usually will disconnect again within a day. I swapped the drives in the docks, so each was connected via the other dock, cable, and internal header. The same problem persists - the TM disk disconnects periodically despite having switched docks.

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Intel Mac :: External USB Hard Drive Disconnects During Large File Transfers

May 9, 2012

I have a Western Digital 2TB USB Hard Drive that Ive been using perfectly for a couple of years on my MacBook Pro. A couple of months ago I bought a 27inch iMac and started using it as my main computer. So I had that hard drive connected to my iMac.  

I started to notice that during large transfers (be it many files or 1 big one), usually into the Gigs, I suddenly got a warning message saying that the Hard Drive was inappropriately disconnected. It doesnt appear in Disk Utility so I have to manually connect and disconnect the drive in order for it to show up again on the iMac. I tested it again on my MacBook and the same thing happened.  

Another problem:

Sometimes it will dissappear from the iMac without a warning message, it just doesnt show up. (Usually after long periods of inactivity). I then have to manually disconnect and connect for it to show up.  

iMac, Mac OS X (10.7.2)

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Hardware :: External HD Randomly Ejecting?

Apr 4, 2010

I have a 1 TB WD external hard drive I store my music and videos on. I have noticed that the hard drive will randomly eject itself causing me to have to turn the external hard drive off and back on for the iMac to mount it again. I have a new iMac i5 and had a 24" 2.4 GHz iMac previously. I was using the firewire port on my previous iMac before and would occasionally experience this problem. However, having to use the USB port on the new iMac it is occurring on a daily basis. I have tried different ports on the back of the iMac thinking it was a USB problem, but that didn't seem to help. I have run disk utility and it says the drive is in good health.

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OS X :: Randomly Spins Up External Hard Drive?

Aug 4, 2009

So I have an external hard drive hooked up to my MBP via USB. I've noticed that every now and then (maybe every half hour or hour?) the drive spins up. It's actually really annoying, as the drive makes a loud sound as it spins up.

I can't figure out why it does this; the drive spins up and then goes back idle. Time machine is DISABLED, spotlight index on the drive is DISABLED as well. I use the drive solely for storing movies/music. There are NO applications installed on it. The only apps I have open are finder/preview/safari/firefox/adium/itunes. My guess is that some process is trying to access the drive for whatever reason now and then.

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MacBook :: WD External Drive Randomly Ejecting?

Apr 19, 2012

I've seen several discussions on external drives randomly ejecting, but didn't see any concise resolution. I have a Western Digital Passport, P/N WD320ME-01 2209A, using the OEM USB (2.0 I think) cable (~12 inches long). My ~4 year old mac book is running OSX 10.7.3. I use this drive for Time Machine B/U. Seemed to work ok (no ejects) when Leopard was the OS, but, after going to Snow Leopard, and now Lion, I get 'disk improperly ejected' errors when trying to run TM, or ever Repair under Disk Utilities. I did get one good TM back up, under Lion, after reformating the drive [extended (journaled)], but the next time I tried to run TM I started getting the 'improperly ejected' errors. Don't know if there is an issue with Lion (and earlier SL), or with WD drives. The fact that it originally worked leads

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Hardware :: External Firewire 800 Hard Drives Randomly Unmounting?

Feb 21, 2009

Macbook Pro 17" Core 2 Duo 2.33GHz. Following a logic board replacement for a separate issue. I have two external Firewire 800 Hard drives (two separate brands and sizes) which have suddenly started unmounting randomly and giving the 'hardware removal error'. A few seconds after unmounting they mount again, only to unmount a minute later with the error again. It is now doing this in a loop.I have done the following things:

1. rebooted and checked all cable connections

2. I have tried this with the two disks plugged in separately and daisychained.

3. I have tried two separate Firewire 800 cables.

4. running the Disk Utility.

5.installing the system from scratch on a freshly formatted internal disk.

6. reinstalling again with an archive and install.

Everything seems to work fine with a Firewire 400 connection.The only software setting that I changed is to disable the "Put Hard Disks to Sleep when possible" option in the Energy Saver system prefs. Any connection? I have enabled this again and so far (a couple of hours) so good.Should I be looking at a hardware issue

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MacBook Pro :: Randomly Loses Retina Display And Showing Pixels On Top Menu Randomly?

Sep 4, 2014

My mid-2014 15" Macbook Pro randomly "loses" its retina display at the top menu (becomes pixel-y), where the battery, sound, and wifi logos are (on the top right side of the screen). A restart fixes the issue, but I want to know if this is an issue that can be fixed? 

MacBook Pro with Retina display

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Applications :: Msn And AIM Disconnects

Nov 16, 2010

The last couple of days have my Aim and Msn kept disconnecting! I`m online on Adium, Microsoft Messenger and Aim and the same time. All disconnects at the same time! when it disconnects im surfing or playing games or surfing at facebook.

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OS X :: Comcast Disconnects With Mac - Not Windows

Jun 12, 2009

We have Comcast internet hooked up to a Linksys router. When only Windows machines are using the connection, everything works fine. When I use my Macbook Pro on the connection, it works for a while, then eventually the connection dies for everyone, and usually restarting the modem makes it work again. I am now trying to use the connection on Windows XP on my Macbook Pro using Boot Camp, and it seems to be working, so it seems like the modem doesn't like something about Mac OS X.

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OS X :: XP - Leopard VNC Disconnects As Soon As Connect

Nov 25, 2009

I'd like to be able to VNC to my Mac at home. Here are the steps I followed (on my Mac - latest version of Leopard)

1) In the "sharing" control panel options I turned on Screen Sharing

2) In the screen sharing options I set "allow VNC access with password" (or something like that) and set my password

3) On my airport extreme I entered "manual setup" and in the port forwarding menu (I forget what it's called) I selected "remote desktop access" from the dropdown menu. That seemed to add the correct ports (5900 was one of them), and I entered my local IP address for my mac in the dialog as well.

NOW, here are my symptoms:.........................

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Software :: Random Disconnects While Using The Net

Feb 7, 2009

I didn't know where to put this question, so I thought this would be the most appropriate. My computer (A macbook pro, with mac OS X, version 10.4.11) will randomly disconnect from the internet, mostly when I'm playing online games. Sometimes I can play for hours, other times only minutes before the next DC. I can restart and it will work for a few more minutes. The funny thing is it only does this when using the wired connection at my apartment, when i'm using the wireless at college it works fine. Part of my inquiry is checking if it's my computer or the ISP. None of my roommates have similar problems (though they all use PC's). One interesting thing I found when a tech from the ISP was trying to fix things is when I try to renew my IP it gives the same address after it "renews". I know I threw alot of jumbled info out there, but I'd like input from someone who knows macs.

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MacBook :: Internet Automatically Disconnects On Other OS X?

Nov 24, 2010

I've got a MacBook 3,1 (White, late 08 model) which is happily connecting to the wireless network but refusing to use the internet. Other computers on the network use it fine.

What's more, when I restart to my bootcamp partition, the internet works fine. It's only in Mac OS that I have a problem.

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OS X :: Frequent Wireless Disconnects - How To Repair

Mar 31, 2007

When I turn my computer on or wake it up, I am 'connected' or so it says, but I am never able to reach the internet until I (wait a long, seemingly random amount of time or) disable my wireless adapter, re-enable it, and select my wireless network.

I did not experience this problem prior to:

-Trying out a new AirPort Extreme, returning it and going back to my old G router. The AirPort worked great for this computer, but it had problems with the PCs and the xbox 360 (yes.. i know there is a workaround now...)

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MacBook Air :: AMSN Disconnects Regularly

Aug 3, 2008

AMSN messenger gets disconnected of and on,regular basis Help?

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Hardware :: Wireless Network Disconnects Itself From The Net?

Feb 27, 2010

I have the Samsung SCX 4500w and its IMPOSSIBLE on wireless network.

Once I have paired it, which I?ve done four times now, after some time, for some reason - it disconnects itself from the net.

So I cant access the IP adress, even though the configuration-report says that its still connected and has the same IP. So it wont print, unless I turn it off, and pair it with my router again.

Samsungs customer service refuse to help me. They dont have a clue on how to resolve the problem when it comes to Macs. They dont even know OSX, they dont know the interface. They are just guessing what I have to do, and its shocking and awkward.

Samsung really sucks with customer service for Mac!

Does anyone have this printer? This is driving me completely insane, and I dont know what to do. Im considering returning it, and never buying a Samsung printer again.

This is too bad, because the function is great, quality and design is great too. The few times it works, its great.

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OS X :: MacBook Disconnects Every Other Device To Internet

Mar 3, 2010

I just bought a MacBook. So far I am loving it. Unfortunately a very strange thing happens. Whenever I download something with the Macbook every other device at my house becomes unable to connect to the internet until the download is finished. It doesn't matter if it is a WiFi device or not. The connected devices are: a WinXP Netbook, an ubuntu9.10 desktop PC (please notice this is connected with an Ethernet cable, it's not wifi), a WiFi and a Samsung Bluray reader. To complicate things even further, I noticed that even the MacBook itself cannot do anything else (such as browsing the web w/ Safari and/or Firefox). I tried to download large files such as a movie from iTunes store and the iPhone SDK. The download rate is about 600Kb/sec.

I have a 6Mb/sec DSL w/ AT&T and the modem is a 2WIRE 1701HG. Granted, it's pretty cool to have a laptop that can hose wireless networks. These are some info from my network:
2WIRE 1701HG Gateway
Channel: 10 (2.457 MHz)
Authentication: WEP-Open
Encryption: WEP (tried also with WPA)
Channel: 10 (2.457 MHz)
Wireless Mode: 802.11b/g
Maximum Connection Rate: 54Mbit/sec
Power Setting: 4
SSID Broadcast: Enabled

Broadband Link
Connection Speed:
- Incoming: 6016 kbps
- Outgoing: 768 kbps

SL Connection Details
DSL Line (Wire Pair): Line 1 (inner pair)
Protocol: G.DMT Annex A
Downstream Rate: 6016 kbps
Upstream Rate: 768 kbps
Channel: Fast
Current Noise Margin: 14.0 dB (Downstream), 17.0 db (Upstream)
Current Attenuation: 31.3 dB (Downstream), 18.0 db (Upstream)
Current Output Power: 15.7 dB (Downstream), 11.9 db (Upstream)
DSLAM Vendor Information: Country: {0x00} Vendor: {ALCB} Specific: {0x00}
PVC Info: 0/35
Internet Connection Details
Connection Type: PPPoE
Maximum Transmission Unit (MTU): 1492
Gateway Ping: Successful
DNS Communication: Successful
Configuration Server Post: Successful

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Safari :: Stop Using Disconnects From The Network?

May 5, 2012

This is a problem in Safari only (maybe it is too good for real connections) it can disconnect as often as every 5 minutes. No other browser has ever had this problem.

The ONLY way I know to make it reconnect is to kill it and launch it again. 

I´m just opening this here so that I force myself NEVER to use Safari again as I´m pretty confident this is not a bug but "a feature"  ... 

Of course, I´m typing this from Firefox.

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MacBook :: Internet Sharing Through AirPort Disconnects

Sep 30, 2010

I've recently moved into student accommodation, which only has wired internet access in the rooms. This is fine for my MacBook, but causes problems for the iPad! So I've been attempting to share the MacBook's internet connection through AirPort using the "Internet Sharing" option in System Prefs->Sharing. This works great, but after a while it disconnects for no apparent reason.

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MacBook :: Internet Disconnects In Sleep Mode

Jan 9, 2009

Every time my macbook is in sleep mode the internet disconnects (msn messenger shuts down, download stops etc.). I am not talking about closing the lid sleep mode because I am in desktop mode with an external display. Once I woke up my macbook it reconnects. Does anyone know how to stop this because I think it happened after 10.5.6.

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OS X :: Airport Suddenly Disconnects - How To Prevent From Disconnection

May 6, 2009

I recently bought a late 08 aluminum macbook and have been quite happy with it but from quite some time I've noticed that while I'm on internet and on adium (where I noticed the most) the signal goes off for a couple of seconds and then it comes back. First i thought it was ok but it's been happening really often and is quite annoying since it happens several times a day and only happens to me and not anyone on my network (everyone else has pc`s and are also on wifi). So I wanted to ask.. is it possible my Airport card is failing? or is my router the one failing.

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MacBook :: Bluetooth - Keyboard & Mouse Disconnects?

Oct 22, 2009

I've found many different explanations to why bluetooth on my Macbook would 'overheat' and then disconnect from all devices, only to show 'Bluetooth Not Responding'.

I was wondering if anyone has found a fix to this problem. I'm current on all updates running Snow Leopard. Normally, the bluetooth keyboard and mouse works for up to 5 minutes or so, but then loses its connection until it 'cools down' and then this process just repeats. The laptop is currently on a cooling fan and rarely needs the internal fan to even kick on so not sure what else to do.

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