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Fix Guide

How to Fix Wi-Fi 6E and Bluetooth Connectivity Issues on the Minisforum UM890 Pro

Device: Minisforum UM890 Pro · Minisforum Added

Causes

  • The UM890 Pro ships with a MediaTek MT7922 (RZ616) Wi-Fi 6E + Bluetooth 5.2 module — the MediaTek Linux driver (mt7921e/mt7922) has known stability issues with kernel 6.x series that cause the adapter to randomly drop the connection or fail to detect Wi-Fi 6E (6 GHz) networks, and on Windows the driver version 3.x series has a similar disconnect problem under moderate throughput
  • The integrated antenna wires inside the UM890 Pro chassis can become partially dislodged during shipping or assembly — the two tiny U.FL connectors on the MT7922 module are delicate and a loose connection causes intermittent signal loss, reduced range, or Bluetooth failing to pair at all
  • Wi-Fi 6E (6 GHz band) requires DFS (Dynamic Frequency Selection) channel support from both the router and the client — if the router is broadcasting on a channel affected by radar detection or if the UM890 Pro's country code is misconfigured in the driver, the 6 GHz band is entirely invisible to the operating system
  • USB 3.0/3.1 ports adjacent to the antenna area generate electromagnetic interference (EMI) in the 2.4 GHz band — when high-speed USB devices (external SSDs, flash drives) are plugged into the front USB-A ports on the UM890 Pro, the radiated noise can desensitize the Wi-Fi and Bluetooth receivers, causing throughput drops and Bluetooth audio stuttering
  • The MT7922 module shares a single PCIe lane with the second M.2 SSD slot on some UM890 Pro configurations — installing a PCIe 4.0 NVMe drive in the second slot can cause bandwidth contention that manifests as Wi-Fi disconnects when the SSD is under active read/write load

How to Fix

  1. Update the MediaTek Wi-Fi driver to the latest version: press Win + X → Device Manager. Expand Network adapters, right-click the MediaTek Wi-Fi 6E MT7922 (or RZ616) adapter → Update driver → Search automatically for drivers. If Windows does not find a newer driver, download the latest MT7922 driver directly from the Minisforum UM890 Pro support page or from MediaTek's official driver repository and install it manually
  2. Shut down the UM890 Pro, unplug the power adapter, and remove the bottom panel (four Phillips screws under the rubber feet). Locate the MT7922 module — it is the small M.2 card near the antenna cable routing. Gently press down on both U.FL antenna connectors to ensure they are fully seated. A click or slight movement when pressing confirms they were loose. Reassemble and test connectivity
  3. In the Windows device driver settings, disable 802.11 power saving: open Device Manager → Network adapters → right-click the MT7922 → Properties → Advanced tab. Find Power Saving Mode and set it to Off. Find MIMO Power Save and set to No SMPS. Also disable the Allow the computer to turn off this device to save power checkbox in the Power Management tab for both the Wi-Fi and Bluetooth adapters
  4. If 6 GHz (Wi-Fi 6E) networks are not visible, ensure your router is broadcasting on a supported 6 GHz channel (as opposed to a DFS-affected channel). Temporarily, go to Device Manager → the MT7922 adapter → Advanced tab and set Preferred Band to 6G Band First. If still invisible, check that the Windows country code matches your region — go to Settings → Time & Language → Region and set your correct country, then restart
  5. Move high-speed USB 3.x devices (external SSDs, flash drives) away from the front USB-A ports on the UM890 Pro. Use the rear USB4 or USB-A ports for storage devices instead, as these are physically farther from the internal Wi-Fi antenna. If Bluetooth audio stutters when a USB 3.0 device is active, relocate that device to a different port or use a USB 2.0 hub for non-critical peripherals
  6. If Wi-Fi disconnects during NVMe SSD activity, check which M.2 slot your boot drive occupies. If the second M.2 slot (the one that shares a PCIe lane with the Wi-Fi module) is occupied, consider moving the secondary SSD to a USB4 enclosure or using a single larger NVMe drive in the primary slot instead
  7. For Linux users experiencing Wi-Fi drops with the mt7921e driver, add the kernel parameter mt7921e.amsdu_size_max=0 to your boot configuration (edit /etc/default/grub and append it to GRUB_CMDLINE_LINUX_DEFAULT, then run update-grub). This disables A-MSDU aggregation which is known to cause buffer overflow disconnects on the MT7922 chipset in Linux kernel 6.x
  8. If all software steps fail, consider replacing the MT7922 module with an Intel AX210 or AX211NG module. The UM890 Pro uses a standard M.2 2230 Key E slot and the Intel AX210 is a drop-in replacement that offers superior driver support on both Windows and Linux. After replacement, install the Intel Wi-Fi driver from Intel's support site