USB hub dropping out

I have a Belkin Ultra-slim hub (http://store.apple.com/uk/product/H7187B/A/belkin-ultra-slim-7-port-usb-2-0-hub), to which I have connected a 4TB USB drive, my iPhone, iPad and various other devices "as and when" needed. The hub is powered, and connected to my late 2012 MBP using the cable that came with the hub.
I have the problem that the hub just randomly drops out - it happens whether there are any number (even just one) of devices connected, and to me seems totally random. Sometimes it'll be after being connected hours, other times after a few minutes. This is so annoying - particuarly as the USB drive is my time machine, so it can drop out mid backup.
I've also tried this with a variety of other hubs - all have the same problem.
Any ideas what's causing this?
Thanks.

I have a slightly different set up (d-link powered hubs & new MBP) but the problem is the same. I do not have this problem when I hook the hubs up to my 2007 MBP. Both systems are running 10.8.2. I'm beginning to wonder about the backward compatibility of the USB 3.0 connections in the new MBP.

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BT Home Hub dropping out & turning itself off, Is ...

For the last 24 hours I've been losing connection in the house and have had to do a reset a few times,
This morning I woke up to my home hub having no lights on however the power was plugged in and on/of button pressed down, I then tested the speed and that seemed to cause the home hub to drop out once again showing no lights and needing reseting......sounds like it's about to die, might be wrong though??

if factory resets does not bring it back to life ( depressing small recessed button on back) then does sound as if hub is dying and you need to phone CS 08001114567 and if you are still in contract then they should replace it
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USB Audio dropping out frequently

Several times a day I lose all audio output on my computer (I'm using USB Sound Sticks speakers).
It seems to happen when viewing video content in Flash Player. Not sure if it actually related to Flash, or if that is just when I notice it.
Sometimes audio will come back on its own.
If not, a reliable way to bring the audio back is to quit the 'coreaudiod' process in the Activity Monitor.
It is usually (not always) accompanied by a message in the Console that says:
'WARNING: AppleUSBAudio has detected that clockgetuptime () value changed radically from previous values"
Has anyone else experienced this issue?
Does anyone know what that message means?

I think I solved this by switching the USB port I was using for the Sound Sticks.
It hasn't happened for several days now.
Both ports are the powered ones on the back of the computer, so it's not a USB hub issue. There must be a problem with that first port.
I hope this information can help someone else...

Home Hub Drops Out

Hello. Tech idiot here. I see others have had this issue and like others I've no idea why my HH4 worked well but my HH5 drops out.
Data posted below. Have had line tested via Rays suggestion to someone else. No problems. Line quite quiet.
Help me..........
1. Product Name: HomeHub5
2. Serial number: +076284+1448007987
3. Firmware version: v0.07.03.0814-BT (Type B) Last updated [Unknown]
4. Board version: 01
5. VDSL uptime: 0 days, 03:46:42
6. Data Rate: 6116 / 24258
7. Maximum Data Rate: 6175 / 31018
8. Noise Margin: 6.1 / 6.3
9. Line Attenuation: 0.0 / 26.1
10. Signal Attenuation: 0.0 / 0.0
11. Data sent/received: 11.8 MB / 157.8 MB
12. Broadband username: [email protected]
13. BT Wi-fi: Yes
14. 2.4GHz wireless network/SSID: BTHub5-H23H
15. 2.4GHz wireless connections: Enabled (802.11 b/g/n (up to 144 Mb/s))
16. 2.4GHz wireless security: WPA2 Only (Recommended)
17. 2.4GHz wireless channel: Automatic (Smart Wireless)
18. 5GHz wireless network/SSID: BTHub5-H23H
19. 5GHz wireless connections: Enabled (802.11 a/n/ac (up to 1300 Mb/s))
20. 5GHz wireless security: WPA2 Only (Recommended)
21. 5GHz wireless channel: Automatic (Smart Wireless)
22. Firewall: Default
23. MAC Address: 4c:09:d4:42:4f:ab
24. Software variant: -
25. Boot loader: 0.5.0-BT (Tue Jun 17 18:52:56 2014)

You can try fixing wireless problems by turning off Smart Wireless and splitting the 2.4 GHz and 5 GHz bands. To do this:
1. Go into your advanced settings on the HH5 and select the wireless tab.
2. Then select the 5GHz tab and select NO to "Sync with 2.4 GHz:".
3. Then choose a new SSID by adding "5" to the existing one, so you can tell the difference between 2.4GHz and 5GHz bands.
4. While you're there change "Channel selection:" from "Smart wireless" to the current channel.
5. Then press the "Apply" button.
6. Then choose the 2.4GHz tab and change "Channel selection:" from "Smart wireless" to the current channel on 2.4GHz.
7. Then press the "Apply" button again.
Now on your devices you can select which SSID (which band, 2.4GHz or 5GHz) to connect to.
If you found this post helpful, please click on the star on the left
If not, I'll try again

Usb audio drop-out and problems on 2010 Mac Mini

Hello! I recently purchased an Apogee Symphony USB audio interface for my Mac mini. I have been trying for over a month to get it fully functional without having any dropouts. The interface runs fine for about 15-20 minutes before I hear static (using my DAW, using iTunes, streaming movies on Netflix, etc). Sometimes the DAW (reaper to be specific) can't play back because the computer lost the connection to the USB Audio interface. I know this because I launch Audio Midi setup and it does not recognize the Apogee Symphony interface. I restart the interface and it works fine. There is intermittent loss at times, inconsistent latency, etc. I have worked with Apogee support and we've tried everything - newest drivers, firmware update, etc. I used to run Snow Leopard 10.6.8 and had the same issues; I upgraded to 10.7.5 but had major kernel panics due to the display (or something, couldn't quite figure it out) but I reverted to 10.7.4 and everything runs smoothly... except the audio interface.
This led me to doing some research online and I think the problem is with USB audio dropouts. I've tried disabling Bluetooth, Airport, not putting my HD to sleep, etc and still has the same issues. I've tried two different USB ports: the one closest to the display and the the one next-to-last.
My question is: what causes the USB audio dropouts and is there a fix for it??

This happened a bunch of times; I only copied the main gist of the error message:
Jun 1 19:01:31 Franks-Mac-mini com.SymphonyIOUSBDaemon.plist[63]: kIOReturnNotResponding
Jun 1 19:01:31 Franks-Mac-mini com.SymphonyIOUSBDaemon.plist[63]: System          : 0x38
Jun 1 19:01:31 Franks-Mac-mini com.SymphonyIOUSBDaemon.plist[63]: Sub          : 0x0
Jun 1 19:01:31 Franks-Mac-mini com.SymphonyIOUSBDaemon.plist[63]: Code          : 0x2ed
Jun 1 19:01:31 Franks-Mac-mini com.SymphonyIOUSBDaemon.plist[63]: sys_iokit error
Jun 1 19:01:31 Franks-Mac-mini com.SymphonyIOUSBDaemon.plist[63]: sub_iokit_common
Jun 1 19:01:31 Franks-Mac-mini com.SymphonyIOUSBDaemon.plist[63]: kIOReturnNotResponding
Jun 1 19:01:31 Franks-Mac-mini com.SymphonyIOUSBDaemon.plist[63]: System          : 0x38
Jun 1 19:01:31 Franks-Mac-mini com.SymphonyIOUSBDaemon.plist[63]: Sub          : 0x0
Jun 1 19:01:31 Franks-Mac-mini com.SymphonyIOUSBDaemon.plist[63]: Code          : 0x2ed
Jun 1 19:01:31 Franks-Mac-mini com.SymphonyIOUSBDaemon.plist[63]: sys_iokit error
Jun 1 19:01:31 Franks-Mac-mini com.SymphonyIOUSBDaemon.plist[63]: sub_iokit_common
Jun 1 19:01:31 Franks-Mac-mini com.SymphonyIOUSBDaemon.plist[63]: kIOReturnNotResponding
Jun 1 19:01:31 Franks-Mac-mini com.SymphonyIOUSBDaemon.plist[63]: System          : 0x38
Jun 1 19:01:31 Franks-Mac-mini com.SymphonyIOUSBDaemon.plist[63]: *** process 63 exceeded 500 log message per second limit - remaining messages this second discarded ***

Re: BT Hume Hub dropping out Wi-Fi

My broadband has been dropping now for 3 months, between 10 and 20 times a day, and after many hour long calls to BT the problem still hasn't been resolved. I am extremely frustrated with the service i am receiving, i keep getting passed from one person to another. No one seems to want to own this complaint. I have just been told by one of BT's colleagues in India, it is something i have to put up with.

sw7 wrote:
My broadband has been dropping now for 3 months, between 10 and 20 times a day, and after many hour long calls to BT the problem still hasn't been resolved. I am extremely frustrated with the service i am receiving, i keep getting passed from one person to another. No one seems to want to own this complaint. I have just been told by one of BT's colleagues in India, it is something i have to put up with.
Does your connection drop if you use an Ethernet connection to the home hub?
There are some useful help pages here, for BT Broadband customers only, on my personal website.
BT Broadband customers - help with broadband, WiFi, networking, e-mail and phones.

HUB Dropping out

For a while I've had an irritation where Hub will lose connection it did not happen that often and wondered if it was a kettle or something switching on and off. Today it is happening about ever 30 mins! I've changed channels etc with no luck any suggestions where to go next?

Data as requested
ADSL line status
Connection information
Line state
Connected
Connection time
0 days, 0:52:29
Downstream
8,128 Kbps
Upstream
448 Kbps
ADSL settings
VPI/VCI
0/38
Type
PPPoA
Modulation
ITU-T G.992.1
Latency type
Interleaved
Noise margin (Down/Up)
11.8 dB / 21.0 dB
Line attenuation (Down/Up)
21.0 dB / 11.0 dB
Output power (Down/Up)
19.8 dBm / 11.8 dBm
Loss of Framing (Local)
21
Loss of Signal (Local)
6
Loss of Power (Local)
0
FEC Errors (Down/Up)
577 / 0
CRC Errors (Down/Up)
3 / N/A
HEC Errors (Down/Up)
N/A / 0
Error Seconds (Local)
55

Home Hub 4 keeps dropping out

I received my home hub 4 in October 2013 but after numerous calls to the BT Helpdesk I have now had to revert back to my home hub 2 to get a decent reliable signal Im currently paying for BT infinity unlimited but I'm seriously thinking and going to sky they seem to a more reliable product. I've phoned the BT Helpdesk and they are equally useless being on hold for 45 minutes and being transferred to be put on hold for a further 20 minutes with no resolution to the issues I've reported

Hi Dogandnophone,
I'm sorry that you're having problems with your BT home hub dropping out. Have you tried to manually change the wireless channel? Check out this link for help with this and let me know if it works.
Thanks
Neil
BTCare Community Mod
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Satellite Z830 - Wireless adapter drop out/conflict with USB

My Satellite Z830 has a wierd problem. The wireless connectivity works well until I plug a usb flashdrive into the usb 3 port on the side. The wireless then drops out after a period and from then on it cant find any wireless connections available. It effectively kills the wireless adapter, or at least makes it less reliable.
You have to reboot to get the connection back. I've tried with a few different usb storage devices with the same outcome. Both the wireless connection and the usb drive work fine, but not at the same time. This happens regardless of whether using the battery or when plugged in. I checked the power settings to ensure there wasnt some problem there. Everything is just on factory install/settings generally, so I cant imagine it is anything I've changed.
I'm at work, but I'll see if I have the same problem with the usb sockets at the back, and/or with powered usb hard disk, when i get home. This is really annoying, as you cant use the net and leave a usb disk in without risking a drop out. I havent checked messing around with USB root hub settings or IRC issues as this seems unlikely. Any thoughts or is the a "give it back to Toshiba" issue - I'd rather not have the down time. It took me quite a while to work out this was the problem.
The wireless connection itself is very strong where the ultrabook is being used, so isnt a signal strength issue.

I used inSSIDer Office 5 day trial (http://www.metageek.net/support/downloads/)
too identify the same problem with my Z830.
_The results are really astonishing:_
the signal strength measured in dBm increases by > 100 times when the corded mouse is unplugged from the from the side USB port.
(plugging it into any of the USB ports in the back has no impact on the signal strength.)
In my case it jumped from -68 dBm to -41 dBm,: the -27 dBm difference means a 22.4 times improvement in signal strength (from about 100 pW to 2,240 pW).
See wikipedia for signal strength calculations: http://en.wikipedia.org/wiki/DBm
I tested to plug in an external hard disk into the side USB and it had the same -27 dBm effect on the signal strength.
In other words the wifi signal strength jumps from poor to excellent when the side USB is not used.
Toshiba must look into this significant hardware design fault and in the interim, as the very least, must advise their customers against using the side USB port when on a wireless network.

Midi / USB drop out since Lion upgrade!

Hi all, i have had great responses and success in the past with this forum, i really really hope this will continue.
I have been gigging using mainstage 2 and a M-Audio Oxygen midi keyboard controller for a few years now and until lately it's been fantastic. I will never go back to a stand alone manufactured synth. I am using a macbook pro, 2.93ghz with 8 gb ram. I initially upgraded from snow leopard to lion when it was launched but had to go back as Creative hadn't any lion drivers for use with my emu 0202 audio interface. Last month i found that they had done them and i re-upgraded to Lion. Since the upgrade i am experiencing Midi drop outs. This is to say that whilst performing i get an error message saying something like midi input device no longer available. This has happened a few times now but last night (new years eve!!), not only did i get this message which i sorted with a reboot but a few minutes later i had a midi note hang and i noticed that there was no longer any usb supplied power to my keyboard. The answer again at this stage was a reboot.
I would ideally not like to reinstall snow leopard as there are quite a few great things in lion which i would miss, but obviously if i can't resolve these issues i don't see that i have any other choice.
Any possible suggestions as to what may be causing these problems will be very much appreciated.
Thanking you in advance
Mark
PS Happy New Year

My experience with Lion was great for a while, it was effortless, everything I had attached still worked with no problems aside from needing occasional drivers. Once Lion 10.7.2 was released, I updated my system and again, no problems. If I recall correctly, 10.7.2 was released in October. Suddenly in December, I began having random software and midi issues all around my system. I do not use Mainstage but I have noticed others have had similar problems with various software and USB midi controllers, and have not seen a fix.
I regularly use Pro Tools 8, Ableton Live 8 and occasionally Reason 5. I also have an M-Audio Axiom 61 and Korg padKontrol attached via USB. After about 2 months of trouble-free operation, Live and Reason would not open and the accompanying software for my padKontrol no longer would either. These apps would just "hang" and I would eventually have to force quit them. In addition, Audio Midi Setup would also hang when attempting to switch to the midi preferences page. Pro Tools still worked, but I could no longer receive midi signals. I also use a wireless USB stick to connect to my home wifi signal and that no longer worked and neither did the accompanying software.
It's possible that there are deeper issues in your system as well as mine and the others having similar problems.
At times, I wonder if there is some kernel errors embedded in my computer. I got my MacPro when Snow Leopard was fairly new and had numerous kernel errors resulting in many applications not functioning. I eventually sorted them out but ran into similar USB related issues with the Snow Leopard 10.6.8 update, so I remained on 10.6.7 until Lion was released.
The only successful fix I've had is switching from Lion back to Snow Leopard 10.6.7 after erasing my entire hard drive. I've tried reinstalling Lion through both upgrading from Snow Leopard and a clean install of 10.7.2 after erasing my hard drive again.
I believe my USB and midi problems stem from kernel errors somewhere but cannot find them (I have used Disk Utility many times). I really liked using Lion but I lose so much functionality and my internet connection so I have determined that I will not be using it. I may try Lion again when 10.7.3 is released but am wary. If anyone has ideas on how to fix these issues, I would love to hear them.

BThome hub 2 DHCP drop out

Hi all since last night, 20/01/13. my ipad keeps being dropped the wireless network.. it seems that the bt homehub2 dhcp drops out and I have to go into hub manager to reset the the lease time it was set for 1 day.. QED after 24hrs it duly dropped out. WHY??
I've now set it for 21 days. will this work?? this has only happened since the hub received an upgrade!!! any of you had similar problems ?

franka wrote:
I powered down the hub on several occasions . This did not renew the lease. I turned off the ipad etc and again no automatic reconnect.. Each time I had to manually kickstart the dhcp!!. 2 weeks ago I was roaming in and out of range- mainly to see what range I had, and then it was reconnecting with no issues... So this is a recent issue.. I'll see if it re boots in 20 days...
It should do....
-+-No longer a forum member-+-

Wifi Dropping out & not recognising Hub password.

OS X Yosemite
Version 10.10.2
MacBook Pro
Processor 2.4 GHz Intel Core i5
Memory 4GB 1067 MHz DDR3
Graphics NVIDIA GeForce GT 330M 256 MB
Hi,
On my MacBook Pro the wifi keeps dropping out, and when I click the relevant Hub, in My case its a BT Home Hub 5 (Bt Infinity), It asks for the Hub password again, even though it's suppose to remember it, but I put in the right password, for it and it tells me that it's Invalid. This happened a little bit with 10.10.1 and I know Apple addressed the problem in the update into Yosemite 10.10.2 but since I installed it, it has got worse. In the past hour I've tried to reconnect no less than 40 times, with it telling me the same thing over and over saying that the password is invalid.
Previous steps tried:
Turning wifi off on MacBook for 30 Seconds - 1 Minute
Forgetting the Hub and reconnecting to it.
Resetting the Hub
Restarting MacBook
Punching MacBook
None of Which have worked yet, if anyone has any solutions, could you help me out because I don't know what else to try.
Adam.

Yes, it could be the home hub 2.
See Reported problems with the Home Hub 2.0
There are some useful help pages here, for BT Broadband customers only, on my personal website.
BT Broadband customers - help with broadband, WiFi, networking, e-mail and phones.

BT Home Hub 3 Problems - Internet drop out

We had BT (and the Hub 4) installed at the end of August. As soon as it was installed, we had issues where the internet would be fantastic and stay connected for all of five minutes before slowing to nothing and then dropping out. We had a technician out to fix the problem, who seemed to have it solved.
Fiften minutes after he left, it went down again. It was not just on one device. It was two phones, a laptop, and a desktop PC. A technician came out a second time, replaced the Hub 4 with a Hub 3, and we still had issues. The technician, on their laptop, ran a number of tests (including the internet speed test) and declared the issue nothing to do with BT as the problems did not occur on his laptop. This was despite us also running the same speed test at the same time stating that we were getting all of 8mb (as opposed to the 30mb he was receiving).
Frustrated, we were informed that, when using the computers, we would need to plug them in via an ethernet cable to receive the speed promised to us and a continuous connection. We received a set of arcnet plugs for the desktop PC (which has solved the problem for the desktop) and that the laptop would have to stay by the modem and plugged in via ethernet cable to receive a continuous connection.
Recently (over the last two months) the internet has slowed dramatically, even when plugged in, and we still cannot receive a continuous connection wirelessly for the internet, and now we have issues of sudden drop-outs.
The connection can be restored by troubleshooting and it comes up with the following message:
This has been the message from the very beginning, and we want the matter to be finally resolved. Can anyone actually help up with this problem? We're feeling very frustrated at the lack of assistance we have received.

As you now have hh3 can you enter 192.168.1.254 into your browser and then post your adsl stats please. Can you run btspeedtester diagnostic test and post results
Are you connected to the test socket?
Have you tried downloading and then running inssider 3 which will show if you are using a congested channel for the wifi and if so other channels which you can move to being less congested
Have you checked that the drivers for your wifi cards are up to date from manufacturers website?
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If someone answers your question correctly please let other members know by clicking on ’Mark as Accepted Solution’.

BT Infinity Hub 3 slow to load pages and drops out...

Hi can anyone help, I have had Infinity option2 for less than a month and it has not work properly since it was installed,
done all the around the houses with help from India and they have thanked me for my patience and acknowledge there
is a fault which they say they have fixed, but it's getting worse.
When I do a speed test I get 36Mb down and 8Mb up, great but when I am loading websites they usually take a long time to load and frequently drop out, when I hit the diagnose connection they usually load. I also cannot send or sometimes receive email from my accounts, with server error fault messages also my webcam does not work I can here them but they cannot here me, never had these problems with my previous ISP on only 8Mb.
Thank you, getting desperate now!

Mate, I feel your pity as, although I've only had Infinity for 4 days, I'm having the exact same problem and NEVER had this issue in the 4 years I was on BT Total Broadband. To summarise:
Day 1 - Everything worked perfectly
Day 2 - Internet would not load one single page
Day 3 - Working perfectly again
Day 4 - Most pages load, albeit VERY slow
BT India have told me that I have a fault in my line and an engineer will call me back in the next 24/48 hours. Apparently I was the first person on my cabinet to have Infinity installed so I'm guessing I'm the guinea pig!!!
You won't get to ride the racehorse...until you've ridden the mule.... - RogerB 13/04/2010

Airport Extreme will not auto connect after poewr out with USB Hub!

Hi all,
I have just purchased the Airport Extreme and have it connected to my ADSL router. All works fine but if the airport looses power (as the household power went off momentarily today) then once it powers back up it will not connect to the internet unless I unplug the USB hub connected to it first.
Anyone with similar experiences?

vtwiz wrote:
Hi all,
I have just purchased the Airport Extreme and have it connected to my ADSL router. All works fine but if the airport looses power (as the household power went off momentarily today) then once it powers back up it will not connect to the internet unless I unplug the USB hub connected to it first.
Anyone with similar experiences?
No
Your issue may have something to do with your ADSL router and/or ISP carrier when you have power interruption.
I would contact Apple to take advantage of your free 90 days of tech support by phone since your product is "new." Let them tell you what the problem is.
There are 2 Airport Extreme forums - http://discussions.apple.com/category.jspa?categoryID=140

USB hub dropping out

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