IMac 24" Causing Interference?

Currently have a 24" iMac 2.33ghz Core 2 Duo\2gb\750gb\10.4.8.
As well as suffering poor wireless performance (slow transfer, unsteady connection), it appears to be interfering with other equipment in the house.
Whenever my external hard drive is plugged in, all radios in the house become unlistenable and my ADSL connection drops out. I have eliminated all other possibilities and it is down to the iMac-External HDD combination.
With the hard drive plugged into my iBook, no interference or drop outs occur.
I'm thinking perhaps something is amiss inside and the wireless antenna is broadcasting interference from the USB port/HDD? Its a strange phenomenon.
Anybody else experienced anything like this?
Cheers,
james.
12" iBook G4 : 1.2GHZ/768MB/60GB/APX/Combo Mac OS X (10.4.8) 1G iPod 5GB, 5G iPod 30GB (white); PowerMac G4 DP Server (Tiger)

Folks who have downloaded and installed the 802.11n Enabler for the Core 2 Duos have reported dramatically increased wireless range and usability.
Airport 802.11n Enabler for Mac
I realize this may not help with the external HDD interference, but it should make your wireless experience better. A question for troubleshooting this issue. Have you turned off the AirPort card in you Mac and still experienced thi radio interference?

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TV causes interference with powerline adapter

I just had infinity installed and I have a problem with my powerline adapters, which is next to the TV (it is for the sky+ box for sky go). The powerline adapters are TP-Link tl-pa211 and the TV is a Panasonic th-37px70b.
When the TV is on, the maximum I can get through the ethernet powerline is 14mb/s, but if the TV is off or on standby I can get close 40mb/s (i.e. the maximum on the broadband line). The TV is on a wall bracket so it is difficult to move.
I have tried:
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TV in room 1 connected to socket in room 2 and powerline in room 2 - 40mb/s constantly.
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It seems it is the actual TV that is directly causing the interference with the powerline adapater, not the TV causing interference in the electricity line. I'm not sure how it can interfere directly.
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Thanks for you reply. I have tried the TV connected directly to the socket and the powerline connected to a seperate twin socket about 1 meter away and I still get the problem when the TV is on. Also, I have connected the TV to a power socket on the other side of the house with a extension cord while not actually moving the TV and the powerline adapter connected to a socket near the TV and this still gives the same problem when the TV is on. And then, with the TV still on the extension cord to the otherside of the house, I connected the powerline to the same twin socket as the extension cord and this produced no problems.
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I actually use a wireless powerline adapter (TP-Link TL-WPA281) in the socket, but for testing this problem I use the non-wireless version (TP-Link TK-PA211). And according to this thread, the BT Hub 3B isn't compatible with wireless extenders. Why is upgrading to infinity so annoying?

Does a sports camera positioned beside the top right corner of iPhone4 cause interference to GPS?

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Since buying my HRM2 (for iPhone 4) I no longer run the myriad other GPS tracking apps on my iPhone. However, while out on a ride I discovered ST was not tracking well, so decided to simultaneously run a couple of apps. Another also experienced tracking problems.
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IMac hanging caused by Safari (I think)

Have been having problems with my iMac hanging which I think is caused by Safari.
Safari (5.1.7 )will be working OK and then hang with the spinning wheel. Am then unable to quit and finder hangs in turn and I end up doing a restart with the power button.
Have 1 external hard drive attached which is partitioned for Time Machine backup and iTunes library.
In attemt to address problem I have previously erased my iMac and reinstalled all software (from new rather than from Time Machine backup) and then reinstalled user files (but not application library files in case any of these were corrupted.
Problem is common to all users.
Last log looks like this:
01/07/2012 16:39:31          SecurityAgent[1525]          User info context values set for ian
01/07/2012 16:39:31          SecurityAgent[1525]          Login Window Showing Progress
01/07/2012 16:39:31          SecurityAgent[1525]          Login Window done
01/07/2012 16:39:31          /System/Library/CoreServices/loginwindow.app/Contents/MacOS/loginwindow[15 30]          Login Window Application Started
01/07/2012 16:39:31          com.apple.SecurityServer[30]          Session 0x42d71d created
01/07/2012 16:39:31          com.apple.SecurityServer[30]          Session 0x42d71d attributes 0x30
01/07/2012 16:39:32          loginwindow[1530]          Login Window Started Security Agent
01/07/2012 16:39:34          SecurityAgent[1542]          User info context values set for ian
01/07/2012 16:39:34          SecurityAgent[1542]          Login Window login proceeding
01/07/2012 16:39:34          SecurityAgent[1542]          Login Window done
01/07/2012 16:39:34          loginwindow[1530]          Login Window - Returned from Security Agent
01/07/2012 16:39:34          loginwindow[1530]          USER_PROCESS: 1530 console
01/07/2012 16:39:34          com.apple.launchd.peruser.501[1543]          (com.divx.agent.postinstall) Unknown key: LimitToSessionType
01/07/2012 16:39:34          com.apple.launchd.peruser.501[1543]          (com.apple.ReportCrash) Falling back to default Mach exception handler. Could not find: com.apple.ReportCrash.Self
01/07/2012 16:39:42          com.apple.launchd.peruser.501[1543]          (com.apple.Kerberos.renew.plist[1571]) Exited with exit code: 1
01/07/2012 16:39:43          com.apple.launchd.peruser.501[1543]          ([email protected][1578]) Exited with exit code: 1
01/07/2012 16:40:07          com.apple.Finder[1549]          Dropbox: Entered INJECT_pthread_entry
01/07/2012 16:40:07          com.apple.Finder[1549]          Dropbox: Installing event loop timer
01/07/2012 16:40:07          com.apple.Finder[1549]          Dropbox: proc: 0x10074be5b
01/07/2012 16:40:07          com.apple.Finder[1549]          Dropbox: upp: 0x10074be5b
01/07/2012 16:40:07          com.apple.Finder[1549]          Dropbox: InstallEventLoopTimer: 0x7fff8509fdd8
01/07/2012 16:40:07          com.apple.Finder[1549]          Dropbox: GetMainEventLoop: 0x7fff8509fc41
01/07/2012 16:40:07          com.apple.Finder[1549]          Dropbox: timer installed!
01/07/2012 16:40:07          com.apple.Finder[1549]          Dropbox: Loading /Library/DropboxHelperTools/Dropbox_u501/DropboxBundle.bundle/Contents/MacOS/Dr opboxBundle
01/07/2012 16:40:07          com.apple.Finder[1549]          Dropbox: dlopen returned: 0x10129c180
01/07/2012 16:40:07          com.apple.Finder[1549]          module initializer in main thread?: 1
01/07/2012 16:49:42          /System/Library/CoreServices/CCacheServer.app/Contents/MacOS/CCacheServer[ 1581]          No valid tickets, timing out
01/07/2012 17:01:05          kernel          CODE SIGNING: cs_invalid_page(0x1000): p=1747[GoogleSoftwareUp] clearing CS_VALID
01/07/2012 17:07:22          com.apple.backupd[1773]          Starting standard backup
01/07/2012 17:07:22          com.apple.backupd[1773]          Backing up to: /Volumes/TM/Backups.backupdb
01/07/2012 17:07:32          com.apple.backupd[1773]          No pre-backup thinning needed: 2.27 GB requested (including padding), 65.57 GB available
01/07/2012 17:07:53          com.apple.backupd[1773]          Copied 2942 files (34.7 MB) from volume IAN'S.
01/07/2012 17:07:53          com.apple.backupd[1773]          No pre-backup thinning needed: 2.23 GB requested (including padding), 65.53 GB available
01/07/2012 17:07:56          com.apple.backupd[1773]          Copied 538 files (1.3 MB) from volume IAN'S.
01/07/2012 17:07:58          com.apple.backupd[1773]          Starting post-backup thinning
01/07/2012 17:07:58          com.apple.backupd[1773]          No post-back up thinning needed: no expired backups exist
01/07/2012 17:07:58          com.apple.backupd[1773]          Backup completed successfully.
01/07/2012 17:09:59          Safari[1563]          unknown error code: invalid drawable
01/07/2012 17:09:59          Safari[1563]          kCGErrorFailure: Set a breakpoint @ CGErrorBreakpoint() to catch errors as they are logged.
01/07/2012 17:09:59          [0x0-0xd30d3].com.apple.Safari[1563]          Sun Jul 1 17:09:59 IANS.local Safari[1563] <Error>: unknown error code: invalid drawable
01/07/2012 17:28:51          kernel          npvhash=4095
01/07/2012 17:09:59          [0x0-0xd30d3].com.apple.Safari[1563]          Sun Jul 1 17:09:59 IANS.local Safari[1563] <Error>: kCGErrorFailure: Set a breakpoint @ CGErrorBreakpoint() to catch errors as they are logged.
01/07/2012 17:28:51          kernel          PAE enabled
01/07/2012 17:28:51          kernel          64 bit mode enabled
01/07/2012 17:28:51          kernel          Darwin Kernel Version 10.8.0: Tue Jun 7 16:33:36 PDT 2011; root:xnu-1504.15.3~1/RELEASE_I386
01/07/2012 17:28:51          kernel          vm_page_bootstrap: 1016399 free pages and 23985 wired pages
01/07/2012 17:28:51          kernel          standard timeslicing quantum is 10000 us
01/07/2012 17:28:51          kernel          mig_table_max_displ = 73
01/07/2012 17:28:51          kernel          AppleACPICPU: ProcessorId=0 LocalApicId=0 Enabled
01/07/2012 17:28:51          kernel          AppleACPICPU: ProcessorId=1 LocalApicId=1 Enabled
01/07/2012 17:28:51          kernel          calling mpo_policy_init for TMSafetyNet
01/07/2012 17:28:51          kernel          Security policy loaded: Safety net for Time Machine (TMSafetyNet)
01/07/2012 17:28:51          kernel          calling mpo_policy_init for Quarantine
01/07/2012 17:28:51          kernel          Security policy loaded: Quarantine policy (Quarantine)
01/07/2012 17:28:51          kernel          calling mpo_policy_init for Sandbox
01/07/2012 17:28:51          kernel          Security policy loaded: Seatbelt sandbox policy (Sandbox)
01/07/2012 17:28:51          kernel          Copyright (c) 1982, 1986, 1989, 1991, 1993
01/07/2012 17:28:51          kernel          The Regents of the University of California. All rights reserved.
01/07/2012 17:28:51          kernel          MAC Framework successfully initialized
01/07/2012 17:28:51          kernel          using 16384 buffer headers and 4096 cluster IO buffer headers
01/07/2012 17:28:51          kernel          IOAPIC: Version 0x20 Vectors 64:87
01/07/2012 17:28:51          kernel          ACPI: System State [S0 S3 S4 S5] (S3)
01/07/2012 17:28:51          kernel          PFM64 0xf10000000, 0xf0000000
01/07/2012 17:28:51          kernel          [ PCI configuration begin ]
01/07/2012 17:28:51          kernel          console relocated to 0xf10010000
01/07/2012 17:28:51          kernel          PCI configuration changed (bridge=4 device=2 cardbus=0)
01/07/2012 17:28:51          kernel          [ PCI configuration end, bridges 7 devices 17 ]
01/07/2012 17:28:51          kernel          Sleep failure code 0x00000000 0x12000000
01/07/2012 17:28:51          kernel          AppleIntelCPUPowerManagement: (built 16:44:45 Jun 7 2011) initialization complete
01/07/2012 17:28:51          kernel          mbinit: done (64 MB memory set for mbuf pool)
01/07/2012 17:28:51          kernel          rooting via boot-uuid from /chosen: 7E1CC127-1C90-3C0C-BD4E-346467DFE5B2
01/07/2012 17:28:51          kernel          Waiting on <dict ID="0"><key>IOProviderClass</key><string ID="1">IOResources</string><key>IOResourceMatch</key><string ID="2">boot-uuid-media</string></dict>
01/07/2012 17:28:51          kernel          com.apple.AppleFSCompressionTypeZlib kmod start
01/07/2012 17:28:51          kernel          com.apple.AppleFSCompressionTypeZlib load succeeded
01/07/2012 17:28:51          kernel          AppleIntelCPUPowerManagementClient: ready
01/07/2012 17:28:51          kernel          BTCOEXIST off
01/07/2012 17:28:51          kernel          wl0: Broadcom BCM4328 802.11 Wireless Controller
01/07/2012 17:28:51          kernel          5.10.131.42
01/07/2012 17:28:51          kernel          FireWire (OHCI) Lucent ID 5901 built-in now active, GUID 001cb3fffe804d26; max speed s800.
01/07/2012 17:28:51          kernel          Got boot device = IOService:/AppleACPIPlatformExpert/PCI0/AppleACPIPCI/SATA@1F,2/AppleICH8AHCI/PR T0@0/IOAHCIDevice@0/AppleAHCIDiskDriver/IOAHCIBlockStorageDevice/IOBlockStorageD river/ST3500418ASQ Media/IOGUIDPartitionScheme/IAN'S@2
01/07/2012 17:28:51          kernel          BSD root: disk0s2, major 14, minor 2
01/07/2012 17:28:51          kernel          jnl: unknown-dev: replay_journal: from: 2430464 to: 5580288 (joffset 0xe8e000)
01/07/2012 17:28:51          kernel          [Bluetooth::CSRHIDTransition] switchToHCIMode (legacy)
01/07/2012 17:28:51          kernel          jnl: unknown-dev: journal replay done.
01/07/2012 17:28:51          kernel          [Bluetooth::CSRHIDTransition] transition complete.
01/07/2012 17:28:51          kernel          CSRUSBBluetoothHCIController::setupHardware super returned 0
01/07/2012 17:28:51          kernel          USBMSC Identifier (non-unique): 574341565936303730353931 0x1058 0x1110 0x2018
01/07/2012 17:28:51          kernel          hfs: Removed 23 orphaned / unlinked files and 0 directories
01/07/2012 17:28:51          kernel          SAM Multimedia: READ or WRITE failed, SENSE_KEY = 0x05, ASC = 0x24, ASCQ = 0x00
01/07/2012 17:28:51          kernel          SAM Multimedia: READ or WRITE failed, SENSE_KEY = 0x05, ASC = 0x24, ASCQ = 0x00
01/07/2012 17:28:51          kernel          SAM Multimedia: READ or WRITE failed, SENSE_KEY = 0x05, ASC = 0x24, ASCQ = 0x00
01/07/2012 17:28:51          kernel          SAM Multimedia: READ or WRITE failed, SENSE_KEY = 0x05, ASC = 0x24, ASCQ = 0x00
01/07/2012 17:28:51          kernel          SAM Multimedia: READ or WRITE failed, SENSE_KEY = 0x05, ASC = 0x24, ASCQ = 0x00
01/07/2012 17:28:51          kernel          AppleYukon2: Marvell Yukon Gigabit Adapter 88E8055 Singleport Copper SA
01/07/2012 17:28:51          kernel          AppleYukon2: RxRingSize <= 1024, TxRingSize 256, RX_MAX_LE 1024, TX_MAX_LE 768, ST_MAX_LE 3328
01/07/2012 17:28:46          com.apple.launchd[1]          *** launchd[1] has started up. ***
Can anybody spot an aoffending item? Any help gratefully received.

Please read this whole message before doing anything.
This procedure is a test, not a solution. Don’t be disappointed when you find that nothing has changed after you complete it.
Step 1
The purpose of this step is to determine whether the problem is localized to your user account.
Enable guest logins* and log in as Guest. For instructions, launch the System Preferences application, select Help from the menu bar, and enter “Set up a guest account” (without the quotes) in the search box. Don't use the Safari-only Guest login created by Find My Mac.
While logged in as Guest, you won’t have access to any of your personal files or settings. Applications will behave as if you were running them for the first time. Don’t be alarmed by this; it’s normal. If you need any passwords or other personal data in order to complete the test, memorize, print, or write them down before you begin.
Test while logged in as Guest. Same problem(s)?
After testing, log out of the guest account and, in your own account, disable it if you wish. Any files you created in the guest account will be deleted automatically when you log out of it.
*Note: If you’ve activated “Find My Mac” or FileVault in Mac OS X 10.7 or later, then you can’t enable the Guest account. The Guest login created by “Find My Mac” is not the same. Create a new account in which to test, and delete it, including its home folder, after testing.
Step 2
The purpose of this step is to determine whether the problem is caused by third-party system modifications that load automatically at startup or login.
Disconnect all wired peripherals except those needed for the test, and remove all aftermarket expansion cards. Boot in safe mode* and log in to the account with the problem. The instructions provided by Apple are as follows:
Be sure your Mac is shut down.
Press the power button.
Immediately after you hear the startup tone, hold the Shift key. The Shift key should be held as soon as possible after the startup tone, but not before the tone.
Release the Shift key when you see the gray Apple icon and the progress indicator (looks like a spinning gear).
Safe mode is much slower to boot and run than normal, and some things won’t work at all, including wireless networking on certain Macs.
The login screen appears even if you usually log in automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
*Note: If FileVault is enabled under Mac OS X 10.7 or later, or if a firmware password is set, you can’t boot in safe mode.
Test while in safe mode. Same problem(s)?
After testing, reboot as usual (i.e., not in safe mode) and verify that you still have the problem. Post the results of steps 1 and 2.

Firefox 16.02 hardware acceleration osx imac started causing screen corruption

Weird screen corruption with Firefox 16.02 with hardware acceleration switched on.
iMac 11,1 Intel Core i7 2.8 GHz running OSX 10.6.8 with ATI Radeon HD 4850 display hardware.
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I've tried Firefox safe mode and extensions plugins disabled and it definitely seems to be caused by switching hardware acceleration on as problems disappear when switched off.
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Thanks for the link. Has something changed in FF v16.02 hardware acceleration that you are aware of that might have caused this?

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did

Hello and Welcome to Apple Discussions.
Before we make some suggestions could you please confirm whether the iMac actually powers off instantly and then restarts, or
whether the screen wipes down grey and then tells you that you must restart (Kernel Panic).
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Hi,
I bought an EyeTV DTT a while back and it just will not display anything while my MBP is on AC power, the signal quality drops from around 80% to zero. I also noticed by accident, that if there is current running through the magsafe (I accidentally let it touch something metal), the same interference is caused even if it is not connected to the MacBook Pro. Any help would be appreciated. Thanks.
Graham

Thanks but I've tried both USB ports and tried moving the device away with a USB hub and a USB extension, both didn't work.

Too Many Networks Causing Interference

Hi all,
I'm running a PB G4 and Toshiba Tecra laptop on a wireless AEBS + AE network using WDS in a first floor apartment. My signal strength throughout the house is usually full bars with the AEBS running at around 45-65 and the AE at 35-45 signal strength depending on what room I'm in.
Now, sometimes my network just crashes and I receive error messages on the PB and PC telling me that there was an error loggin on to my network or that the connection is incomplete, respectively. My only recourse is to unplug the base station (and AE) and replug it. Usually, this corrects the situation.
I think this is happening because I detect no less than 5 other networks in my area. There are four units in my building, and the building is part of a row of connected apartment buildings. Adding my AEBS and AE, this makes a total of 7 transmitters in this cramped area! I think this might be creating a wireless blitz.
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So, I've been considering boosting my signal by adding an antenna. Is this a solution? I'm also thinking about tweaking the settings for both stations through Admin Utility. Maybe enabling interference robustness on the AEBS, AE, and PB might help?
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Thanks,
FC

I think this is happening because I detect no less
than 5 other networks in my area. There are four
units in my building, and the building is part of a
row of connected apartment buildings. Adding my AEBS
and AE, this makes a total of 7 transmitters in this
cramped area! I think this might be creating a
wireless blitz.
So, I've been considering boosting my signal by
adding an antenna. Is this a solution?
I don't think so. You'll increase your signal
level, and your noise level all together. But
your signal to noise ratio will reach a limit.
Exactly like what happens when you turn your radio
too loud because of the noise of your neighbour's
one.
I'm also
thinking about tweaking the settings for both
stations through Admin Utility. Maybe enabling
interference robustness on the AEBS, AE, and PB might
help?
Yes.
But more generally, like every wireless problem of
interference, you should first analyse it. You
should use a tool like iStumbler to identify all
the channels used by your neighbours.
Once you have identified these channels, and
their level of signal, you have to choose a channel
as far as possible of the most powerful ones.
In an idealistic world, you should choose a channel
3 channels away of all the channels used by your
neighbours. (e.g.: if channels 1, 2, 5 & 6 are used,
you may use channels from 10 to 14, depending on the
regulations were you're using a wireless network).
All interference analysis should first go through
this neighbour's channels hunt.
If you play randomly with your channels, you're
wasting your time, you may be disrupting your
neighbour's networks. And you will have to continue
this silly danse for a long time all together.

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OK, so this is strange. First of all I'm not a mac newbie. I've been using mac devices since the 80s. That being said, I don't know WHY everything works, I just love that Apple products Just Work, until now...
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for some background, my network consists of Cox Cable supplied Docsis 3.0 modem (combined with voice over IP telephone) connected to Apple Airport Extreme (new version). I have the older version Airport Extreme connected via Ethernet being used to extend the network.
I understand there is a beta update pending (10.10.2) that is supposed to address wifi issues but I wanted some input for my situation.
Anybody out there experience this or similar issues?

Please read the warranty paperwork that came w/your computer.
You have 14 days to return the computer w/no questions asked.
You have 90 days of FREE phone tech support on top of your standard 1 year warranty unless you also purchased AppleCare which gives you an additional 2 years of coverage plus FREE phone support.
Strongly suggest that you take FULL advantage of the above before it runs out. Let Apple deal w/the problems & your concerns. It's what you paid them to do.

April 2008 iMac 24" causes my house lights to flicker

I have an April 2008 version 24" iMac with 2.8 GHz processor. When the computer goes into what I call "display sleep" mode, any lights on the same circuit as the computer start flickering. By "display sleep," I mean that the computer is running but the display has shut off. If the computer goes into full sleep mode, no flicker. If the computer is on and running, my lights don't flicker either. This problem occurs with both incandescent and fluorescent bulbs.
I had a program called "Shades" running to dim the display below its lowest setting, but the problem occurs with or without that program.
Has anyone else encountered this problem? Is it a bad power supply, or something else? The temperature levels, including the measurement for the power supply, seem normal. Many thanks.

I don't know where you are so don't know about your house wiring
regulations but I would not expect anything plugged into a powerpoint
to have an effect on the lights. They should be on totally different
circuits.
Dave

Phone 4 and Shure SE530 causing interference

Hi,
I've been using my Shure SE530 headphones and an iPhone 3GS and iPod Nano for years now with now problems. I recently upgraded to an iPhone 4 and instantly noticed a little interference sound.
As I plug the headphones into an iPhone 4 I can hear a little cracking noise for a few seconds - after the plug is seated. When I'm on the train and we pass another train at speed I hear the cracking noise again.
I've tried my SE530's with other people's iPhone 4's and have the same problem. If I try any other head phones, no problems. If I try my SE530's with any other audio device, no problem.
To the best of my knowledge this is only a problem with an iPhone 4 and my SE530's. Unfortunately I don't know anyone else with SE530's so I can't test theirs.
Has anyone else noticed this ?

This didn't happen by itself. This means VoiceOver is enabled which must be manually enabled at Settings > General > Accessibility.
You can turn this off on the computer used for syncing the iPhone.
With the iPhone connected to iTunes, under the Summary tab for the iPhone sync preferences with iTunes, at the bottom select Configure Universal Access.
Select Neither for "Seeing" and select OK.

Since 2.0, iPhone causes interference in headphones

Since updating to firmware 2.0, speaker interference bleeds though my original iPhone ear buds. This never occurred prior to firmware 2.0, and if it did, it was not noticeable to this extent.

I'm experiencing the same.
I did a Restore as a new iPhone or not from my iPhone's backup which had no effect.
Hopefully this will be addressed with an update that is likely in the works.

PC causing interference with Airport Express 802.11n

Hi there,
My airport extreme base station is operating in WDS mode, with an Airport Express as a remote wds.
When i power on a Dell laptop in the house where the AEBS is, the wireless connectivity for any Macs or Pc's connected to the AEBS grinds to a halt. After a few seconds, the AEBS provides zero connectivity. When I turn the Dell's power off, the AEBS signal builds to where it was prior to the Dell being turned on, which is very strong.
The wireless antenna for the dell is not even powered on, and it is not connected to the AEBS via wire either.
Has anyone experienced this kind of interference with the AEBS? I would like to use this Dell on the AEBS network via wireless. Unfortunately, tossing the Dell out the window is not an option for me. Thanks!

Seems the Dell's docking station was interfering with the ABS. Strange.

Base station causing interference with cable modem

I have a late model apple airport extreme base station with time machine. The unit is placed next to the cable box (that provides phone service) that connects to the modem that connects to the base station. When the base station is turned on and working (we use wifi ) there is a nuisance noise in the phones when making and receiving a call for the first 20 to 30 seconds and then disappears. When the base station is disconnected there are no problems with the phones.
Is there such a thing as shielding for the cable box and/or modem? Or is there a simpler solution?
Thanks in advance!
Luc

Hi thanks for your response.
I use a VOIP phone system provided by the cable company (no phone filters required). The VOIP connects to an analog phone management system called Talkswitch. So I have three VOIP lines connecting to the Talkswitch box and 7 lines leaving the Talkswitch box connecting to analogue phones (wired) throughout the office. So to recap:
Cable company line connects to a VOIP Box (ARIS TM604G).
A modem (Thompson DCM475) connects to the the VOIP Box and to the Apple Extreme Base station (with Time Machine).
Three phone lines connect the VOIP Box directly to the Talkswitch Box. The Talkswitch Box is NOT connected to the Apple Base Station.
The server (Mac Mini) is wired to the Apple Base Station.
When I make or receive a call there is a buzzing sound in the line. Sound disappears after 20 to 30 seconds.
When I turn the Base Station off (disconnect) the buzzing sound disappears.
When I leave the Base Station ON and I connect a phone directly to the VOIP Box, there is no buzzing.
I can only assume that the Base Station is interfering with something. Is it the Talkswitch box or the phone cables?
Should I move the Base Station further from the Talkswitch box? or Use shielded cables (which ones)? Or is there another solution? Or is it a voltage problem?
Thanks!
Luc
PS : I did not have this problem with the older Apple Base Station. Is the new one too powerful?

IMac 24" Causing Interference?

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