WLAN report as 5000Mbps USB, but only connects at 1000Mbps

[hstriepe]

Installed the latest on a DS223j.

Read/write speeds are only about 32 Mbps, one-third of the standard 1 Gbps interface.

My lusb:
lsusb
|__usb5 1d6b:0002:0510 09 2.00 480MBit/s 0mA 1IF (Linux 5.10.55+ xhci-hcd xHCI Host Controller xhci-hcd.3.auto) hub
|__5-1 2109:2817:9013 09 2.10 480MBit/s 0mA 1IF (VIA Labs, Inc. USB2.0 Hub syno.ext.hub) hub
|__5-1.2 0bda:8157:3000 00 2.10 480MBit/s 500mA 1IF (Realtek USB 10/100/1G/2.5G/5G LAN 0003803F5DD27BF6)
|__usb3 1d6b:0002:0510 09 2.00 480MBit/s 0mA 1IF (Linux 5.10.55+ xhci-hcd xHCI Host Controller xhci-hcd.2.auto) hub
|__usb1 1d6b:0002:0510 09 2.00 480MBit/s 0mA 1IF (Linux 5.10.55+ xhci-hcd xHCI Host Controller xhci-hcd.1.auto) hub
|__usb6 1d6b:0003:0510 09 3.00 5000MBit/s 0mA 1IF (Linux 5.10.55+ xhci-hcd xHCI Host Controller xhci-hcd.3.auto) hub
|__6-1 2109:0817:9013 09 3.20 5000MBit/s 0mA 1IF (VIA Labs, Inc. USB3.0 Hub syno.ext.hub) hub
|__usb4 1d6b:0003:0510 09 3.00 5000MBit/s 0mA 1IF (Linux 5.10.55+ xhci-hcd xHCI Host Controller xhci-hcd.2.auto) hub
|__usb2 1d6b:0003:0510 09 3.00 5000MBit/s 0mA 1IF (Linux 5.10.55+ xhci-hcd xHCI Host Controller xhci-hcd.1.auto) hub
It looks like the LAN adapter is recognized as 5 Gbps.

I have tried an alternate UGReen controller and a different cable. I have tried forcing 2.5 or 5 Gbps via the managed switch it is connected to. The link just goes down.
I connected the adapter and cable to a Mac, and they achieved the expected 5 Gbps via auto-negotiation.

Any ideas?

[HolyRoses]

try different ports. are you using a usb C to usb A adapter? If so flip around the adapter. Looks like you are connected at usb 2.0 speeds.

[hstriepe]

Thanks. I tried two different adapters, two different ports. I also rotated the connector.
Both adapters worked at 5Gbps on a Mac with the Ethernet cable and 10Gbps switch port.

[HolyRoses]

post links to the devices and or brand/model might help.

[HolyRoses]

#297 this guy has success, is that your unit?

[hstriepe]

It is the 5Gbps version: https://www.amazon.com/dp/B0DBY23BL9?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_17

[HolyRoses]

maybe try this cheapo one :) I ordered one for like $4 yesterday. https://www.aliexpress.com/item/1005005834684137.html

[hstriepe]

I have the 2.5Gbps version on my DS 1520+. I upgraded to the latest driver version and just noticed it has dropped to 1 Mbps as well. Since it is Intel, I reverted to the earlier version. It did not help. Odd.
I also rebooted the Mokerlink Switch to no avail.
Darn, this used to work!

[HolyRoses]

test your adapters directly connected to each other with a cat6 cable bypassing all your switching and test with iperf3, if thats good proceed to test through your switching, until you find where the fault is.

plumb your nics with just 2 non routable ips, 192.168.25.1 & 192.168.25.2 for example.

[hstriepe]

I have tested them connected to a MacBook Pro using the same cable and Switch port, and they work as spec'ed.

[hstriepe]

@HolyRoses, thank you for the help.

[bb-qq]

This issue seems to be resolved. I'm closing it.