DS918+ with Sabrent NT-SS5G - Random Crash, DSM unresponsive, Unsafe Shutdown

[dedura]

Description of the problem

Hi,
Since mid of December, I am experiencing random crashes and disconnects on my DS918+ with my Sabrent NT-SS5G Adapter, using the latest driver (v. 1.3.3.0-10). The DSM itself becomes totally unresponsive, wouldn't allow me to stop/restart the driver in Package Center and after 1-2 minutes, suddenly crashes/restarts the whole NAS. The NAS informs that the system was shut down unsafely and starts Data Scrubbing once booted.
This happens every 3-4 Days. Tried both the rear and front USB ports of the NAS, but the issue remained.

Description of your products

NAS: Synology DS918+
DSM: 7.1.1-42962 Update 3
Adapter: SABRENT NT-SS5G
Driver: 1.3.3.0-10 DSM-7.x (reuploaded)
RAM: 16GB
Other USB Port used for: (UPS) CP1500EPFCLCD - Cyber Power System, Inc.

Description of your environment

Connection: From "DS918+" to PC's NIC "Marvell® AQtion AQC107 10Gb Ethernet"
PC Motherboard: ASUS ROG MAXIMUS XII FORMULA Z490
PC OS: Windows 11 Pro 22H2
Ethernet Driver version: 3.1.7.0
Cable: VENTION 1m CAT 8 Ethernet Cable
Connection used for: SMB, WinNUT-2.0 (UPS)

The adapter was working fine before December without any issues, could this be caused after the latest DSM Update 3?
Hope you could help to fix this.
Thank you!

[bb-qq]

Do you have any other USB devices connected, and what are the results of lsusb -a?

[dedura]

Hi,
I am now using my previous 2.5G CLUB 3D CAC-1420 Adapter with the driver "r8152, 2.16.3-3 DSM7.x (reuploaded)", which works fine without any issues.

Only the Ethernet Adapter and the UPS are connected, nothing else.
Please see below the output of lsusb:

|__usb1 1d6b:0002:0404 09 2.00 480MBit/s 0mA 1IF (Linux 4.4.180+ xhc i-hcd xHCI Host Controller 0000:00:15.0) hub
|__1-3 0764:0501:0001 00 2.00 12MBit/s 2mA 1IF (CPS CP1500EPFCLCD CRXLW2000395)
|__1-4 f400:f400:0100 00 2.00 480MBit/s 200mA 1IF (Synology DiskSta tion 7F008AFA20E41640)
|__usb2 1d6b:0003:0404 09 3.00 5000MBit/s 0mA 1IF (Linux 4.4.180+ xhc i-hcd xHCI Host Controller 0000:00:15.0) hub
|__2-2 0bda:8156:3000 00 3.20 5000MBit/s 512mA 1IF (Realtek USB 10/1 00/1G/2.5G LAN 000000001)

[bb-qq]

Hmmm, from the symptoms it looks like a problem with the NT-SS5G, you might want to connect it to your PC to see if there are any stability issues.

Or you could try the QNA-UC5G1T if you can return NT-SS5G. I am also using a DS918+ and this device is running stable.

[dedura]

Thank you, I followed your advice and ordered the QNA-UC5G1T. Will provide feedback in the next couple of days after testing.

[dedura]

So, I have returned the NT-SS5G and got the QNA-UC5G1T. It's running fine now for 24 hours without crashing. I will monitor this for at least a week and update you again.
I have noticed that my max speed is 355-360 MB/s (SMB). If you are using a Windows PC, could you share the Network Adapter settings of your NIC in device manager? I could possibly tweak a little to get the full speed.

[dedura]

Providing iperf3 output:
(Only getting a max of 355-360 MB/s (SMB) as mentioned above)
OS: Windows 11 Pro 22H2

iperf3 -c 192.168.xx.xx -P 2
Connecting to host 192.168.xx.xx, port 5201
[ 4] local 192.168.yy.yy port 61286 connected to 192.168.xx.xx port 5201
[ 6] local 192.168.yy.yy port 61287 connected to 192.168.xx.xx port 5201
[ ID] Interval Transfer Bandwidth
[ 4] 0.00-1.00 sec 186 MBytes 1.56 Gbits/sec
[ 6] 0.00-1.00 sec 186 MBytes 1.56 Gbits/sec
[SUM] 0.00-1.00 sec 372 MBytes 3.12 Gbits/sec

---

[ 4] 1.00-2.00 sec 201 MBytes 1.69 Gbits/sec
[ 6] 1.00-2.00 sec 200 MBytes 1.68 Gbits/sec
[SUM] 1.00-2.00 sec 401 MBytes 3.37 Gbits/sec

---

[ 4] 2.00-3.00 sec 194 MBytes 1.63 Gbits/sec
[ 6] 2.00-3.00 sec 190 MBytes 1.60 Gbits/sec
[SUM] 2.00-3.00 sec 384 MBytes 3.22 Gbits/sec

---

[ 4] 3.00-4.00 sec 208 MBytes 1.74 Gbits/sec
[ 6] 3.00-4.00 sec 206 MBytes 1.73 Gbits/sec
[SUM] 3.00-4.00 sec 414 MBytes 3.47 Gbits/sec

---

[ 4] 4.00-5.00 sec 171 MBytes 1.43 Gbits/sec
[ 6] 4.00-5.00 sec 170 MBytes 1.43 Gbits/sec
[SUM] 4.00-5.00 sec 340 MBytes 2.86 Gbits/sec

---

[ 4] 5.00-6.00 sec 205 MBytes 1.72 Gbits/sec
[ 6] 5.00-6.00 sec 204 MBytes 1.71 Gbits/sec
[SUM] 5.00-6.00 sec 409 MBytes 3.43 Gbits/sec

---

[ 4] 6.00-7.00 sec 195 MBytes 1.64 Gbits/sec
[ 6] 6.00-7.00 sec 194 MBytes 1.63 Gbits/sec
[SUM] 6.00-7.00 sec 389 MBytes 3.27 Gbits/sec

---

[ 4] 7.00-8.00 sec 203 MBytes 1.70 Gbits/sec
[ 6] 7.00-8.00 sec 202 MBytes 1.70 Gbits/sec
[SUM] 7.00-8.00 sec 406 MBytes 3.40 Gbits/sec

---

[ 4] 8.00-9.00 sec 194 MBytes 1.62 Gbits/sec
[ 6] 8.00-9.00 sec 192 MBytes 1.61 Gbits/sec
[SUM] 8.00-9.00 sec 386 MBytes 3.23 Gbits/sec

---

[ 4] 9.00-10.00 sec 209 MBytes 1.75 Gbits/sec
[ 6] 9.00-10.00 sec 208 MBytes 1.75 Gbits/sec
[SUM] 9.00-10.00 sec 417 MBytes 3.50 Gbits/sec

---

[ ID] Interval Transfer Bandwidth
[ 4] 0.00-10.00 sec 1.92 GBytes 1.65 Gbits/sec sender
[ 4] 0.00-10.00 sec 1.92 GBytes 1.65 Gbits/sec receiver
[ 6] 0.00-10.00 sec 1.91 GBytes 1.64 Gbits/sec sender
[ 6] 0.00-10.00 sec 1.91 GBytes 1.64 Gbits/sec receiver
[SUM] 0.00-10.00 sec 3.83 GBytes 3.29 Gbits/sec sender
[SUM] 0.00-10.00 sec 3.83 GBytes 3.29 Gbits/sec receiver

[dedura]

Update: Since my last post, it has disconnected 4 times, I had to manually stop the driver and start again.
The good news: It didn't freeze, crash or restart my NAS.
Have you encountered this problem?

[jaqb]

I'm experiencing the same issue with my DS920+. I have also returned NT-SS5G and got QNA-UC5G1T. Then I even got the recommended SABRENT hub with power adapter, but the issue still persists. One time my NAS restarted by itself, so that was bad. But usually is just loses connection and I need to restart the driver. Most of the time I can restart the driver but sometimes it's just impossible to do this.

[dedura]

I have installed an older driver version "1.3.3.0-8 DSM-7.x. Working completely fine without a single crash or reboot since 25th February. See if that works for you.

[jaqb]

Thanks. I have downgraded to 1.3.3.0-8. I kind of know what to do to make the driver crash so I'll test it out.

[jaqb]

Nope, already had 2 improper shutdowns. Downgrading does not fix the issue for me.

[dedura]

Same here, just crashed the whole system, rebooted and started Data Scrubbing. I went back to the 2.5G Adapter now.

[dedura]

OK, now my 2.5G Adapter crashes too with the latest "r8152" driver. As I mentioned in my initial post, I believe something got messed up after the DSM (3) update.

[jaqb]

I would love to hear from @bb-qq regarding this issue ? Is there a way I can help to pinpoint the problem ?

[bb-qq]

I am wondering how much traffic is flowing through the adapter before it becomes unstable. Heat might be causing the problem.

If you plugged that adapter into a Windows PC and kept the same amount of traffic flowing through it, would it work stably for an extended period of time?