Slow upload speeds on 10G EU servers

[frisof 0]

Hi,

The new 10Gbit/s EU servers are great, Netrouting seem to be a decent ISP and I am easily able to achieve a sustained 1Gbps+ download speed using various protocols. However, the story isn't the same for the upload speed. It varies, but the best I am able to achieve seems to be around 300Mbit/s, sometimes dropping below to around 200Mbit/s. Generally it's the same regardless of location: RO, NL, SE - all Netrouting servers are performant when downloading data, but falter on upload speeds. Interestingly the performance was markedly better back when the servers were first introduced, I was easily able to achieve around 500Mbit/s back then, but slowly as more users have been switching to these new servers their performance has been gradually degrading (only on upload speeds).

I have reproduced this behavior from multiple source ASNs, so unless some country level/T1 provider rate limiting is to blame, I don't think that the problem is on my end. I am also able to max-out a normal 1Gbps server (~800Mbit/s) symmetrically if I am the only high-bandwidth user connected.

So, since I don't think the issue is my own I'm starting this thread to discuss it a little bit. Has anybody else experienced this upload speed slowdown or 'throttling' behavior, and can anybody else reproduce it as reliably as I can? For me, it's very consistent. Now obviously I'm not demanding answers, and I do appreciate that my high-bandwidth habits are uncommon, but I'd love to get some more info as to why this is happening, for instance, why is the throttling asymmetrical?

For what it's worth (and before people ask), I have tried the other EU 10Gbit/s servers, but I'd prefer not to use them because:

• they aren't as performant as the Netrouting ones
• they are located in a particularly untrustworthy jurisdiction; or, they are hosted by a company that is headquartered in a particularly untrustworthy jurisdiction
• they suffer from being listed on more IP blacklists.

Thanks

[DeepAnger 0]

On 5/31/2026 at 7:58 PM, frisof said:

The new 10Gbit/s EU servers are great, Netrouting seem to be a decent ISP and I am easily able to achieve a sustained 1Gbps+ download speed using various protocols. However, the story isn't the same for the upload speed. It varies, but the best I am able to achieve seems to be around 300Mbit/s, sometimes dropping below to around 200Mbit/s. 

I'm new here and it took me a few weeks to find "the best server" (in my case, one with the fastest upload speed) and it is among the new 10G I found it. I noticed too that with short speed tests, most of  the time, upload appeared to be way lower than download. But in the long run, several days or weeks, I could observe very good upload speed in the range  500 Mbps to 800 Mbps. That is torrent traffic mostly and the VPN part works on a home router under OpenWrt and in this case, I rarely change the server it connects to.

As a conclusion, I didn't try to find why most servers gave ma a lower upload speed and I stopped searching when my average upload speed was near the maximum capability of my router and fiber speed.