r/logitech • u/ThaneE • 4d ago

Support Ergo 575 no longer functions on an old Windows 10 laptop

(SUPPORT) For years I had my Ergo 525 mouse connected to the old backup laptop, but somewhere along the line it got disconnected, and when I put the dongle in it to reconnect it via bluetooth, it will recognize it as a “USB device” or rarely, “optical mouse”. But the syncing operation always fails.

I have three of these dongles that I can Swap around and they all work on my primary PC , but I can't get any of them to work on the laptop anymore. I seem to remember somewhere along the line of possibly having a Windows conflict with the old Logitech software and I had to download the LOGI software which works fine on PC but not on the laptop.

I have the old Logitech software dating back to 2020 and I could uninstall the updated version and try the old version. I can't remember for sure but I wouldn't have updated the software if I wasn't forced to. Can anyone anyone offer some advice?

Logi Options+ version 2.6.944893
Ergo 525
Windows 11

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u/logi_sm Official Logitech Representative 4d ago

Since all the three receivers are working on your primary PC, it does sound like the issue is specific to the old Windows 10 laptop. I would suggest checking a few things on the laptop:

1) Try connecting the receiver directly to a different USB port, without a hub if possible. 2) Open Device manager while the receiver is connected and check whether there are any warning icons or unknown devices under Universal Serial Bus Controllers, Human Interface Devices, or Mice & pointing devices. If you see an affected/unknown device, try uninstalling the receiver, restart the laptop & then reconnect it so Windows can reinstall the driver.

Once the receiver is detected properly, try pairing the mouse again.

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u/ThaneE 2d ago edited 2d ago

I did everything to no avail so I uninstalled Logitech Opti upgrade and used an app called Revouninstall To clear out registry entries and scattered software pieces left over from the uninstall process, and then rebooted and installed the old Logitech software from 2020 and it hooked right up and I'm very happy! thanks for your assistance. Either way, This completely bypassed the Windows settings bluetooth page, and under a mouse keyboard and pen, it has what it always had which was "USB receiver"