Upgrade to 2.5 GbE over USB worked... but there is a problem...

[TML59]

(I also posted this on other forums but -to date- wasn't able to solve my problem)

In short: I purchased a UGREEN USB-to-2.5Gbe converter, followed instructions on the Internet and was able to install drivers and got the NAS (DSM 7.1) to report a 2500mbps Ethernet connection. My cables are Cat7, my switches 2.5 GbE and so is my Windows desktop Ethernet interface. So all seems fine.
When I measure file transfer speed however, I'm still seeing 70-80Mb/s (= 1GbE). An iPerf3 test reported 133Mb/s (which is low for 2.5 GbE but above 1GbE, indicating that there is a 2.5 GbE capable connection, so it seems that 'hardware-wise' things are correct).
Why am I still seeing a 1GbE network speed then??
Any suggestions?

 

[Rusty]

And to add a question on top of my own reply... I know the latest DSM is 7.2, but my system tells me I have 7.1 and all is 'up-to-date'. Would/could it be worthwhile to go to 7.2 on my system and could that potentially improve things for me?

Imho, no

 

[Birdy]

I know the latest DSM is 7.2, but my system tells me I have 7.1 and all is 'up-to-date'.

That's right, you will not be notified so, DSM tells you all is 'up-to-date'.
Release Notes:

For the models below, you can only download the upgrade patch from Synology Download Center because you won't receive notifications for this update on your DSM.

• J Series: DS416slim, DS416j, DS216j, DS418j, DS218j, DS419slim, DS119j

And concerning more series......

 

[TML59]

Ah, OK, I noticed a newer release but didn't read the release notes. My bad, I'm sorry.
But not real added value if I do the update as Rusty also suggests I guess then?

 

[Rusty]

But not real added value if I do the update as Rusty also suggests I guess then?

For this particular issue, imho, no.