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MP 7,1 2.4ghz interference

L

LEOMODE

macrumors 6502a
Original poster
Jun 14, 2009
565
57
Southern California
I'm using Logitech G604 and G915 Lightspeed wireless technology and noticed when I put the USB adapters on the back of the Mac Pro, it was having some issues. I put both USB adapters on the top of the unit and now it's fine.

But the distance is only about 3ft and I thought newer 7,1 would have better technology hardware. I also currently have 5,1 and never had issues with these two devices, in the same location (well 5,1 wifi/BT module built in was really bad, even the upgraded handoff capable ones too, so I had to buy separate external wifi/BT).

Any ideas?
 
Did you try just changing the channel?

There's really no improved technology in any computer that can compensate for issues with external hardware that's not made for a newer standard. Issues here could be:

1) Material inside or as part of the new design of the Mac Pro is harder to penetrate for the signal.
2) You placed it differently?
3) The Wi-Fi on the new Mac Pro is so much stronger or has made your router switch to another channel for some reason that is causing interference.
What frequency does your Wi-Fi run at? Also 2.4GHz or 5GHz. Try changing the channel
 
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casperes1996 said:
Did you try just changing the channel?

There's really no improved technology in any computer that can compensate for issues with external hardware that's not made for a newer standard. Issues here could be:

1) Material inside or as part of the new design of the Mac Pro is harder to penetrate for the signal.
2) You placed it differently?
3) The Wi-Fi on the new Mac Pro is so much stronger or has made your router switch to another channel for some reason that is causing interference.
What frequency does your Wi-Fi run at? Also 2.4GHz or 5GHz. Try changing the channel
Click to expand...

Thanks. I should've re-worded my statement to avoid confusion. I don't think Logitech's Lightspeed is a 2.4ghz technology, so I'm not sure if it'll interfere with 2.4ghz or 5ghz wifi signal.

But to answer your question, no I didn't place it any differently.
 
I’ve had endless issues with my Logitech peripherals for a while now, both with my hackintosh and now Mac Pro.

I’ve found them to be more reliable connected via Bluetooth than to the unifying dongle. Only way I can get it to work properly is to have it on an extension USB cable sitting on the desk. Hopeless.
 
DFP1989 said:
I’ve had endless issues with my Logitech peripherals for a while now, both with my hackintosh and now Mac Pro.

I’ve found them to be more reliable connected via Bluetooth than to the unifying dongle. Only way I can get it to work properly is to have it on an extension USB cable sitting on the desk. Hopeless.
Click to expand...

I haven't had any issues just until when I plugged those dongles in the back of 7,1. Above next to the power button is fine now and it does work better than bluetooth at all times.
 
Mine works ok plugged into the top (not perfect, but ok), but I use both those ports all the time so taking one up for a mouse keyboard dongle is out for me.
 
Placement of the antennas is important, esp. as distance increases or if there are obstacles in the direct signal path. Moreover there are all sort of secondary paths reflected off of things that can create all sorts of weirdness.
The MP7,1 is a huge block of aluminium for the purpose of an EM signal and that's not going to allow signals to go through it (no metal allows that), as well as that it might well reflect such signals, and that reflection will create all sorts of additional paths that will only interfere more than that they help.
Best choice: use an extension cord and put the receiver as close and in direct line of sight to the devices it communicates with.
BTW: the MP7.1's antennas for Bluetooth and WiFi are on top of the case AFAIK.
There's nothing Apple or any other computer maker can do to help you place it better in all possible positions a machine might get used in all environments. Before you know it somebody would put the antenna in a faraday cage and then complain it doesn't work.
 
Last edited:
DFP1989 said:
Mine works ok plugged into the top (not perfect, but ok), but I use both those ports all the time so taking one up for a mouse keyboard dongle is out for me.
Click to expand...

yeah like what s66 said above, i think i should just buy a amazon usb 3port hubs or something and put it below my monitor for a better read or something.

s66 said:
Placement of the antennas is important, esp. as distance increases or if there are obstacles in the direct signal path. Moreover there are all sort of secondary paths reflected off of things that can create all sorts of weirdness.
The MP7,1 is a huge block of aluminium for the purpose of an EM signal and that's not going to allow signals to go through it (no metal allows that), as well as that it might well reflect such signals, and that reflection will create all sorts of additional paths that will only interfere more than that they help.
Best choice: use an extension cord and put the receiver as close and in direct line of sight to the devices it communicates with.
BTW: the MP7.1's antennas for Bluetooth and WiFi are on top of the case AFAIK.
There's nothing Apple or any other computer maker can do to help you place it better in all possible positions a machine might get used in all environments. Before you know it somebody would put the antenna in a faraday cage and then complain it doesn't work.
Click to expand...

It just sucks to see that the only obstacle (visible one that is) is a desk platform in between Mac Pro and my peripherals.
 
I fixed my logitech connectivity issues by getting their dongle extender which allows the dongle to be just inches away from the devices:

www.amazon.com

Logitech Receiver Extender Cable

Original Logitech Part
www.amazon.com
 
As an Amazon Associate, MacRumors earns a commission from qualifying purchases made through links in this post.
HDFan said:
I fixed my logitech connectivity issues by getting their dongle extender which allows the dongle to be just inches away from the devices:

www.amazon.com

Logitech Receiver Extender Cable

Original Logitech Part
www.amazon.com
Click to expand...

Yeah, and Lightspeed peripherals actually do come with extension cables also.
 
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As an Amazon Associate, MacRumors earns a commission from qualifying purchases made through links in this post.
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