Network Interface in DSM Settings broken

[lukszar]

Description of the problem

I installed driver along with tutorial. It seems to work (router recognises it as 2.5Gbps), but now Network Interface in DSM settings is blank. I don't see any interfaces there, all buttons are disabled.

Reinstalling and restarting didn't help.

Description of your products

Model: DS218+

output of uname -a command:

Linux NAS 4.4.302+ #69057 SMP Mon Jul 21 23:32:34 CST 2025 x86_64 GNU/Linux synology_apollolake_218+

DSM version:

DSM 7.2.1-69057 Update 8

the product name of the ethernet dongle:

UGREEN CM648 (2,5Gbps)

Description of your environment

connected to Router with 2.5Gbps switch (Unifi Cloud Gateway Fiber)

cable - CAT7 (Ugreen)

Output of dmesg command

dmesg | grep r8152

[ 1359.744708] usbcore: registered new interface driver r8152 [ 1359.948021] r8152 2-2:1.0 eth1: v2.20.1 (2025/05/13) [ 1359.953602] r8152 2-2:1.0 eth1: This product is covered by one or more of the following patents: [ 1359.971011] r8152 2-2:1.0 eth1: chip rev 14 [ 1363.574801] r8152 2-2:1.0 eth1: Promiscuous mode enabled [ 1363.583149] r8152 2-2:1.0 eth1: carrier on

Output of lsusb command

|__usb1 1d6b:0002:0404 09 2.00 480MBit/s 0mA 1IF (Linux 4.4.302+ xhci-hcd xHCI Host Controller 0000:00:15.0) hub |__1-4 f400:f400:0100 00 2.00 480MBit/s 200mA 1IF (Synology DiskStation 7F00982F2CCA6058) |__usb2 1d6b:0003:0404 09 3.00 5000MBit/s 0mA 1IF (Linux 4.4.302+ xhci-hcd xHCI Host Controller 0000:00:15.0) hub |__2-2 0bda:8156:31f4 00 3.20 5000MBit/s 256mA 1IF (Realtek USB 10/100/1G/2.5G LAN 4F13000001)

[WBWBW]

@lukszar sorry this might not help you at all but I just wanted to let you know that I installed the driver for the same UGREEN dongle yesterday on my DS218+ and it worked. My DSM version is different tho: DSM 7.3-81180.

[shawnhaywood]

I upgraded to DSM 7.3 today and the usb network adapter stopped working on my DS224+. I completed the following and it's working again:

1. Disconnected the USB adapter and connected a network cable into the normal LAN 1 port
2. From Package area - uninstalled the r8152 package
3. Restarted NAS
4. Followed the install instructions on this site
5. After restarting and manually starting the r8152 package I plugged in the adapter and separate network cable.
6. I could see the adapter using CLI "lsusb", but nothing happened in the NAS Network Interface screen. No LAN 3 appeared.
7. Thanks to my AI friend, we discovered eth2 was down.
8. Via ssh into the NAS I ran "sudo ip link set eth2 up" and LAN 3 indicated connected on the Network Interface screen but no IP address becuase I had it setup manually before.
9. I entered the IP, subnet, gateway info and it started working.
10. I removed the temporary cable from the usb adapter, disconnected the LAN port cable and connected it to the usb adapter.

All's good now as of writing this.