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Laptop with KVM appears to lose USB connection when vacuum starts

I have 2 laptops on a KVM that has a dock plugged into it. This setup has worked fine until I got a stationary vacuum that kicks on when something is nearby. I added a UPS and plugged the KVM, dock, and an iMac into the battery outlets, and other devices into the surge-only outlets.

When the vacuum kicks on, nothing appears to lose power, but the KVM appears to reset and the currently selected laptop starts making the sounds like USB devices were just connected. I then have to wait until my 3 monitors are recognized again.

With all of the devices on the UPS, I can't understand how this is happening.

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Strange....maybe you have some ghosts that don't like the vacuum?

A couple troubleshooting steps that might help isolate the issue:

- are you certain your UPS is working fine? May try unplugging it to first make sure it's able to sustain the devices. Then you could try running the vacuum then the machines are on battery only. This would at least help you determine if the issue is related to the power.

Now for the "shot in the dark" ideas:

- If it's still doing it, I'm taking a shot in the dark by guessing there's maybe some shielding problem somewhere. May see if you can borrow someone else's vacuum to see if it does it. Does the vacuum wire every cross or get close to any of the KVM wires?

- If it does it with a loaner vacuum, and it does it when the KVM is on battery backup....I'm guessing it's some shielding issue with the KVM and won't really be resolved unless you get a KVM.

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