TP-Link HB810 throttled 10gb output, Anyone else had this issue ?

Forums › 2degrees (including Slingshot, Orcon, Flip, Stuff Fibre, MyRepublic, 2talk and Vocus) › TP-Link HB810 throttled 10gb output, Anyone else had this issue ?

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RunningMan

9326 posts

Uber Geek
+1 received by user: 4968

#3440712 6-Dec-2025 15:10

Mehrts:

PhillyJ:

...but not my wanted 4kmb.......

Kilomegabits 😅

Nope. kilomillibits. Only out by a factor of 1,000,000,000

WanaGo

160 posts

Master Geek
+1 received by user: 8

#3440720 6-Dec-2025 16:25

PhillyJ:

WanaGo:

I got Hyperfibre2 a couple of years ago when it first came out, and also got a 10GBE NIC from PBTech to support the 10GBE LAN.

Was no end of troubles, and it turned out to be the drivers for the NIC, and the crappy Chipset. It was an Asus flavour, not the TP-Link one you went with, but potentially the same driver, I dont remember now.

I ended up returning it, and got a better 10GBE NIC off Amazon, and its been flawless.

I do recall there being something about the Auto-Speed, and fixing it to 10GBE instead of letting it figure it out, did help. I am using CAT 7 cables, so it wasnt a cable issue, it was all about the driver and the chipset.

Might not be the issue for you, but just wanted to share.

Thanks, mate! What NIC specifically did you end up buying ?

The card I had that I had problems with (just looked it up) was: "ASUS XG-C100C 10Gbps PCI-E Ethernet Adapter"

https://www.asus.com/nz/networking-iot-servers/wired-networking/all-series/xg-c100c/

The card I ended up getting was this one, with the Intel X540 chipset:
https://www.amazon.com/dp/B0BJKN63RP?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1

Hope that helps

Regards

WanaGo

aj6828

183 posts

Master Geek
+1 received by user: 50

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Trusted

#3440828 6-Dec-2025 22:19

Windows’ default TCP stack isn’t always optimized for high-bandwidth, high-latency links. The free utility TCP Optimizer can adjust MTU, RWIN, congestion control, and other parameters to improve throughput. i laways tell this to my hyperfibre customers..

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PhillyJ

8 posts

Wannabe Geek

#3440887 7-Dec-2025 10:27

nztim:

My guess its Microsoft Windows bottleneck, get live Linux cd and run a speed test to see if things are any better

So just didnt a Linux test with Ubuntu, got 2100mb on the down and 3100mb on the up !

Pull the USB, let windows load , ran test , 680mb on the down and 340mb on the up ...

What's going on ? Everything I've found online about resetting this and that via CMD Prompt, etc., nothing works.

Maybe just a shit product as someone mentioned uptop ?

PhillyJ

8 posts

Wannabe Geek

#3440888 7-Dec-2025 10:28

aj6828:

Windows’ default TCP stack isn’t always optimized for high-bandwidth, high-latency links. The free utility TCP Optimizer can adjust MTU, RWIN, congestion control, and other parameters to improve throughput. i laways tell this to my hyperfibre customers..

Im about to give it a try, thanks!

PhillyJ

8 posts

Wannabe Geek

#3440938 7-Dec-2025 11:11

Mehrts:

PhillyJ:

...but not my wanted 4kmb.......

Kilomegabits 😅

Gb is a better unit.

LOL, yup typo, honestly mate, it feels like Kbs given how fast it should be !!!

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PhillyJ

8 posts

Wannabe Geek

#3440941 7-Dec-2025 11:18

PhillyJ:

aj6828:

Windows’ default TCP stack isn’t always optimized for high-bandwidth, high-latency links. The free utility TCP Optimizer can adjust MTU, RWIN, congestion control, and other parameters to improve throughput. i laways tell this to my hyperfibre customers..

Im about to give it a try, thanks!

So, great result using TCP Optimiser, I got damn close to 4Gb on the down consistently after multiple tests so happy with that outcome, but the up is still stuck at around 420ish-Mb. I simply started with the preset options at the bottom, chose "Optimal" . If i were to venture into "custom" territory to increase the Up speed, what could you suggest?

yitz

2277 posts

Uber Geek
+1 received by user: 608

#3441011 7-Dec-2025 14:47

What's the location of the server you are testing to?

And I assume you're running latest Windows 11 or latest version/build of 10?

aj6828

183 posts

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Trusted

#3441018 7-Dec-2025 15:56

PhillyJ:

PhillyJ:

aj6828:

Windows’ default TCP stack isn’t always optimized for high-bandwidth, high-latency links. The free utility TCP Optimizer can adjust MTU, RWIN, congestion control, and other parameters to improve throughput. i laways tell this to my hyperfibre customers..

Im about to give it a try, thanks!

So, great result using TCP Optimiser, I got damn close to 4Gb on the down consistently after multiple tests so happy with that outcome, but the up is still stuck at around 420ish-Mb. I simply started with the preset options at the bottom, chose "Optimal" . If i were to venture into "custom" territory to increase the Up speed, what could you suggest?

Unfortunately this is a known issue on all versions of Windows — the Windows TCP stack just doesn’t handle multi-gigabit uploads as well as Linux. Linux manages TCP scaling and offloading much more efficiently, which is why you’ll often see full 4 Gb up/down on Linux, but Windows gets stuck around a few hundred Mbps until the offload settings are manually tuned.

For speed testing:

Chorus Fibre Lab is great for checking download speeds,
but it caps upload, so you won’t see full 4 Gb there.
Voyager’s servers are usually the best for accurate upload tests, since they aren’t constantly hammered by people running automated speedtest scripts like many other NZ servers.

If you want an easy way to fix the Windows upload bottleneck:

In TCP Optimizer → File → Backup → save the .spg file
Upload the file to ChatGPT
Say you’re on 4 Gb Hyperfibre (2degrees)
ChatGPT will edit the file with the correct high-speed settings
Restore the updated file in TCP Optimizer and reboot

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