3/11/2015 Apple/Mac/OS X News, Tips and Tech Articles - xlr8yourmac.com
Archive of March 10th/11th, 2015 News       Go to Current News Page

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More Feedback on USB 3.0 Interference with 2.4GHz WiFi/Bluetooth
"Re: USB 3.0 interference (Mac Mini 2011 server owner)
I saw something pop up in my RSS about USB 3.0 causing interference with 2.4Ghz. (Reminder on potential USB 3.0 interference w/2.4GHz Wifi/BT in Feb 27th news after seeing another report of problems.)
I have one of these on my Mac Mini to get USB 3.0 (Kanex Thunderbolt to eSATA + USB 3.0 Adapter). I'm using it with this USB hub (Anker USB 3.0 SuperSpeed 10-Port Hub - link notes "VIA VL812-B2 Chipset and updated Firmware 9081").
It works remarkably well. However, if I put something really high speed on it, like a hard drive, (and it's only the USB 3.0 side that does this, eSATA doesn't make it malfunction), my Apple Magic Mouse and WiFi both slow to a crawl.

I have scratched my head over and over until I figured out that a mass storage device using high speed mode on that USB 3.0 port was causing the issue. Now that I have the external connector using eSATA (which is just about as fast to me), I can use my Magic Mouse just fine. But, if I connect a portable USB 3.0 drive (like this Seagate Backup Plus 2TB Portable HDD STDR2000100) and try to do a large transfer, guess what? Same issue. Mouse slows down to a crawl. Wired mouse works fine. Yeah, it's kind of frustrating.

Only advice I have is the usual (move USB3 devices as far away as possible, shielding (cables, devices), using 5GHz wifi if you have an 802.11n or ac base). Where possible, I prefer Ethernet.

Apple/products related News/Updates/Tips/PR:

(FYI: If the "mach_kernel" file is visible after the OS X security update, this apple support doc has info on making it invisible again.)

Apple USB-C Adapter Cables (HDMI, USB 3.1, VGA)
Links to US Apple Store items with prices as of March 2015.

Apple also has a 2 meter long USB-C charge cable ($29).

(March 10th/11th) Apple Support Article Updates:

(Page w/Tips, Troubleshooting & How-To articles for Mac/OS X/iOS - Airplay to Thunderbolt.)

Recent Updates, Tips, DIY Upgrades and Repairs:
List of Updates, DIY Repair, Upgrade articles, Tips and more you may have missed. (Topics range from OS/software updates, troubleshooting to hardware upgrades and repairs.)

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Previous News Archive Summary:
    March 9th, 2015 News Archive
  • Apple Security Update 2015-002 for OS X 10.10.2, 10.9.5, 10.8.5 (downloads)
  • mach_kernel file visible after Security Update (and how to make it invisible again)
  • FYI on Nvidia OS X 10.10.2 Drivers and OS X Security Update 2015-002
  • iMovie 10.0.7, Apple TV 7.1, iOS 8.2, Xcode 6.2 Updates
  • Apple Unveils All-New MacBook
  • Apple Updates 13-inch MacBook Pro with Retina Display and MacBook Air
  • Apple Watch Available in Nine Countries on April 24
  • HBO NOW Premiering in April, Directly to Apple Customers
  • Apple Introduces ResearchKit for Medical Studies
  • Apple TV price cut to $69 (US)
  • Borderlands: The Pre-Sequel Claptastic Voyage due March 24
  • Apple Support Article Updates:
    - About Security Update 2015-002
    - About the security content of iOS 8.2
    - About the security content of Apple TV 7.1
    - About the security content of Xcode 6.2
    - Tops for Problems signing in to FaceTime, Messages or Game Center

For links to older news pages, see the Archives.

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