I recently bought a used system and the seller threw in a wireless mouse and keyboard. I think they’re considered decent (Logitech K750 keyboard and G602 mouse) and they mostly work fine. However, every once in a while they glitch out and become erratic and ‘laggy’. I’ve also tried a Bluetooth mouse (Logitech M535) and seen similar behavior (mostly OK, glitches out now and then.)
Unfortunately due to space considerations, I have to place the system on the floor adjacent to the desk. So the signal has go through the desk and a drawer to get to the wireless receiver (or Bluetooth module.) Is that probably the issue, or are there other considerations (WiFi interference, other EMI devices)?
One idea I had was to hook a USB hub via extension cable to the back of the system, put it on the desk, and put the wireless receivers in the hub. Is that likely to work?
I could just use wired peripherals, but the keyboard and mouse I got seem pretty nice and it would be a shame to put them on the scrap heap.
Does this system have USB 3 ports in the back near the wireless dongles? Those connectors can create interference on the 2.4GHZ band so that antennae within a few inches can have problems. If the dongle is on the back side of a metal case where it can only receive reflected signals, then these two problems combined can negatively affect performance.
If you have any way to move the dongle to a front USB 2.0 port, into an extension or hub for testing purposes, or even use another machine, then you may be able to confirm whether or not this is your problem.
Using an old school Mac Pro (cheesegrater style) under Windows and OS X Mojave. The lag occurs under both OS’s, particularly when the Mac is under load. Not sure if that’s a result of too much I/O, or something to do with wireless interference. I am using WiFi to connect to my home network, though it’s on a 5 GHz 802.11n band.
Nope, this thing is too old to have USB 3. USB 2.0 only, though I believe there are a few USB 3.0 cards available for it. If you’re unfamiliar with it, the ‘cheesegrater’ Mac Pros have an all metal chassis. The dongles are on the back of the system. The desk and chair are wooden, and laid out like so-
I also have a 27" 1080p 144Hz monitor on the desk. I wouldn’t think that would be a source of interference.
