Bug: Logi Options+ / Logi Web Connect – Inconsistent pairing logic across Bolt receivers causes timeout on macOS

[MarKie0815]

Summary

When pairing Logi Bolt devices to a second Bolt receiver on macOS, the pairing process consistently fails with a timeout. The root cause appears to be that different Bolt receivers and devices use different pairing methods, but Logi Options+ and Logi Web Connect show only generic instructions that do not match the actual required method for the specific receiver/device combination.

Environment

• OS: macOS (latest)
• Software: Logi Options+ (latest version)
• Also tested: Logi Web Connect (logiwebconnect.com)
• Devices: MX Master 4, MX Keys S, MX Ergo Vertical, Ergo K860
• Receivers:
  • USB-C Bolt (new, came with MX Master 4 and MX Keys S)
  • USB-A Bolt hidpp, use code 0x0000 in link #1 (older)
  • USB-A Bolt Request documentation on reserved receiver fields in HID++1.0 fields #2 (older)

Core Issue: Three different pairing logics, one generic UI

Through testing, three distinct pairing behaviors were identified:

1. New USB-C Bolt receiver → Pairing triggered by long press on Easy-Switch button
2. Older USB-A Bolt receiver → Pairing triggered by turning the device off and back on
3. Ergo line (MX Ergo Vertical, K860) → Uses yet another pairing method

Logi Options+ and Logi Web Connect do not differentiate between these cases. The software displays the same generic pairing instructions regardless of which receiver or device is being used.

Steps to Reproduce

1. Mouse/keyboard already paired to Computer 1 via USB-C Bolt (Channel 1).
2. On Computer 2 with older USB-A Bolt, open Logi Options+.
3. Click "Add Device" → select "Bolt Receiver".
4. Software shows generic pairing instructions (long press Easy-Switch).
5. User follows instructions – but older USB-A Bolt requires power cycle instead.
6. Device does not enter correct pairing mode → timeout error.

Also tested: Logi Web Connect produces the same timeout. Reversing the order does not resolve the issue.

Expected Behavior

Logi Options+ should detect which Bolt receiver is connected and display the correct pairing instructions for that specific receiver and device combination.

Actual Behavior

Generic instructions are shown for all receivers and devices, causing a mismatch in pairing logic and a consistent timeout error.

Impact

This affects any user with multiple Bolt receivers from different generations – a common scenario for people using one device across two computers. With four devices (MX Master 4, MX Keys S, MX Ergo Vertical, K860) each needing to be paired to a second receiver, the user hits this bug four times.

Suggested Fix

• Detect the connected Bolt receiver generation and show receiver-specific pairing instructions
• Detect the device being paired and show device-specific pairing instructions
• Document the different pairing methods clearly in the UI and in support articles

Workaround (found by user)

The only working solution found was to abandon the idea of pairing all devices to multiple Bolt receivers and instead split devices across different receiver types:

• Computer 1: One Bolt receiver (for newer devices) + one Unifying receiver (for older/Ergo devices)
• Computer 2: Same setup – one Bolt + one Unifying receiver

This means using two USB ports per computer instead of one, and gives up the Easy-Switch multi-computer functionality entirely. This is a significant regression in usability that should not be required for a premium product lineup.

Additional Notes

The standalone Logi Bolt App has been discontinued and merged into Logi Options+. This regression in pairing UX clarity may have been introduced during that migration.