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Clouvider BF & CM Deals Are Live! Up to 50% off (pre-launch of Chicago, Atlanta and Ashburn inside!)
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I had to cancel my service for a refund because UDP speeds were 'capped' at 100Mbps. I tried multiple different installations, debian 12 iso, debian 12 image, ubuntu 20.04 + 24.04, vyos, openwrt and even sysrescue (also tried modifying sysctl options and whatever offloads I could change via ethtool, and different kernels). Spent countless hours over the weekend running iperf3 tests and providing the results. iperf3 (and more importantly -> wireguard!) wouldn't go above 100Mbps (UDP) (both directions), even to clouviders own london server (nor against any other iperf3 server)! I even tried tunnelling wireguard via phantun tcp and udp2raw but it was still capped. They couldn't replicate the issue and ignored all my results, suggesting it was an operating system +wireguard problem (even though I included tests on clean installs using their images). I asked how they were testing; which image and commands - I then rebuilt and ran the exact same commands and it was still limited to 100Mbps. I could get full UDP performance from my OVH VPS to Clouviders iperf3, but not from my clouvider vps? Clearly something was wrong with the instance or hypervisor. TCP was mostly fine, especially to the servers in the YABS benchmark. I understand UDP is best-effort, but it was tested over multiple days at different times and the problem remained (and was consistent), whilst my OVH VPS was fine the whole time.
I was basically told to deal with it (100Mbps UDP/VPN) or get a refund. I suggested completely deleting my VM and replacing it with a new one to see if that would fix it but no. Very disappointing! I was excited to finally join Clouvider but my instance was handicapped and I had no choice but to take the refund (pending). Such a shame as the cpu performance and specs were very good, and UK based!
^ lesson for the future, do not spend considerable engineering resources proving the issue is not on our end while just offering the impossible to convince Customer a full refund (on a non-refundable service) 😉.
So where was the issue? It wasn't with the operating system, as I ran the test on a clean Debian 12 (as instructed) with the exact same commands? What was I doing wrong?? You could only prove there was no issue in other instances. You didn't prove there wasn't an issue with my instance. I started the iperf3 daemon and suggested testing against it. Oh well!
Also I really do appreciate the refund. Maybe I can have my weekend back too?
I am just very frustrated that we were unable to resolve the issue. It could have been as simple as recreating my vps/vm configuration with the one you were testing from (with good results). Anyways, that's the end of it
i have a wireguard site-to-site setup in ashburn....what went wrong? MTU settings maybe? For wireguard I use 1380 MTU...if it helps any.
root@wallace:~# iperf3 -c 10.0.0.153 -p 1001
Connecting to host 10.0.0.153, port 1001
[ 5] local 10.0.8.8 port 54472 connected to 10.0.0.153 port 1001
[ ID] Interval Transfer Bitrate Retr Cwnd
[ 5] 0.00-1.00 sec 62.0 MBytes 520 Mbits/sec 149 725 KBytes
[ 5] 1.00-2.00 sec 58.8 MBytes 493 Mbits/sec 1 547 KBytes
[ 5] 2.00-3.00 sec 51.2 MBytes 430 Mbits/sec 0 608 KBytes
[ 5] 3.00-4.00 sec 57.5 MBytes 482 Mbits/sec 0 672 KBytes
[ 5] 4.00-5.00 sec 60.0 MBytes 503 Mbits/sec 0 733 KBytes
[ 5] 5.00-6.00 sec 57.5 MBytes 482 Mbits/sec 0 786 KBytes
[ 5] 6.00-7.00 sec 57.5 MBytes 482 Mbits/sec 0 836 KBytes
[ 5] 7.00-8.00 sec 56.2 MBytes 472 Mbits/sec 1 661 KBytes
[ 5] 8.00-9.00 sec 58.8 MBytes 493 Mbits/sec 0 729 KBytes
[ 5] 9.00-10.00 sec 58.8 MBytes 493 Mbits/sec 0 777 KBytes
[ ID] Interval Transfer Bitrate Retr
[ 5] 0.00-10.00 sec 578 MBytes 485 Mbits/sec 151 sender
[ 5] 0.00-10.01 sec 575 MBytes 482 Mbits/sec receiver
iperf Done.
root@wallace:~#
UDP is not capped at 100mbps. I have a 500/500 connection on the other side of the tunnel...this is pretty much best case IMO.
All traffic, TCP and UDP were "capped" just below or just above 100Mbps? Or just iperf UDP tests?
That was a tcp test.
Wireguard itself is a udp protocol. 10.0.0.153 is on the other side of the udp tunnel, my site to site vpn. 10.0.8.8 is the clouvider host.
Clouvidor or any provider just needs to prove their pipe works. After that, the application ain't their problem.
From a debugging perspective, if the issue is reproduced with iperf and without VPN, you debug that to reduce variables.
I'd let them prove their pipe works on me.
Hello, Invoice #HB/6092-70268
Please double the bandwidth.
Hi, Invoice #HB/9761-70489
Please double the bandwidth.
@unsafetypin - See below the iperf3 results using the exact image (debian 12) and commands that they supposedly used. These results were consistent using different OS (incl sysrescue), kernels, sysctl options, offloads.. other public iperf3 servers, over multiple days at different times. I'm not suggesting there is a network problem for everyone, but there was clearly an issue with my instance.
EDIT: this was a VPS.8 instance in London
(UDP egress IPV4)
root@vanguard:~# iperf3 -c lon.speedtest.clouvider.net -p 5202 -u -b -1 1500 -4
Connecting to host lon.speedtest.clouvider.net, port 5202
[5] local 213.255.246.76 port 49154 connected to 5.180.211.133 port 5202
[ID] Interval Transfer Bitrate Total Datagrams
[5] 0.00-1.00 sec 13.3 MBytes 111 Mbits/sec 9610
[5] 1.00-2.00 sec 13.5 MBytes 114 Mbits/sec 9800
[5] 2.00-3.00 sec 13.6 MBytes 114 Mbits/sec 9840
[5] 3.00-4.00 sec 13.2 MBytes 111 Mbits/sec 9580
[5] 4.00-5.00 sec 13.1 MBytes 110 Mbits/sec 9520
[5] 5.00-6.00 sec 13.3 MBytes 111 Mbits/sec 9620
[5] 6.00-7.00 sec 13.5 MBytes 113 Mbits/sec 9790
[5] 7.00-8.00 sec 12.4 MBytes 104 Mbits/sec 9010
[5] 8.00-9.00 sec 11.6 MBytes 97.1 Mbits/sec 8380
[5] 9.00-10.00 sec 13.0 MBytes 109 Mbits/sec 9410
[ID] Interval Transfer Bitrate Jitter Lost/Total Datagrams
[5] 0.00-10.00 sec 131 MBytes 110 Mbits/sec 0.000 ms 0/94560 (0%) sender
[5] 0.00-10.04 sec 131 MBytes 109 Mbits/sec 0.113 ms 0/94560 (0%) receiver
(UDP egress IPV6)
root@vanguard:~# iperf3 -c lon.speedtest.clouvider.net -p 5202 -u -b -I 1500
Connecting to host lon.speedtest.clouvider.net, port 5202
[5] local 2a0a:8dc0:4f::a port 41464 connected to 2a0d:5082:0:4::2 port 5202
[ID] Interval Transfer Bitrate Total Datagrams
[5] 0.00-1.00 sec 22.1 MBytes 186 Mbits/sec 16240
[5] 1.00-2.00 sec 22.7 MBytes 190 Mbits/sec 16640
[5] 2.00-3.00 sec 24.7 MBytes 207 Mbits/sec 18150
[5] 3.00-4.00 sec 24.4 MBytes 205 Mbits/sec 17900
[5] 4.00-5.00 sec 26.1 MBytes 219 Mbits/sec 19190
[5] 5.00-6.00 sec 26.0 MBytes 218 Mbits/sec 19100
[5] 6.00-7.00 sec 25.3 MBytes 212 Mbits/sec 18570
[5] 7.00-8.00 sec 25.9 MBytes 217 Mbits/sec 18990
[5] 8.00-9.00 sec 24.3 MBytes 204 Mbits/sec 17860
[5] 9.00-10.00 sec 24.5 MBytes 206 Mbits/sec 18020
[ID] Interval Transfer Bitrate Jitter Lost/Total Datagrams
[5] 0.00-10.00 sec 246 MBytes 206 Mbits/sec 0.000 ms 0/180660 (0%) sender
[5] 0.00-10.04 sec 245 MBytes 205 Mbits/sec 0.070 ms 463/180659 (0.26%) receiver
(UDP ingress IPV4)
root@vanguard:~# iperf3 -c lon.speedtest.clouvider.net -p 5202 -R -u -b -I 1500 -4
Connecting to host lon.speedtest.clouvider.net, port 5202
Reverse mode, remote host lon.speedtest.clouvider.net is sending
[5] local 213.255.246.76 port 60797 connected to 5.180.211.133 port 5202
[ID] Interval Transfer Bitrate Jitter Lost/Total Datagrams
[5] 0.00-1.00 sec 12.1 MBytes 102 Mbits/sec 0.113 ms 374838/383623 (98%)
[5] 1.00-2.00 sec 12.2 MBytes 102 Mbits/sec 0.371 ms 381397/390223 (98%)
[5] 2.00-3.00 sec 12.1 MBytes 102 Mbits/sec 0.100 ms 371683/380473 (98%)
[5] 3.00-4.00 sec 12.8 MBytes 108 Mbits/sec 0.104 ms 366940/376226 (98%)
[5] 4.00-5.00 sec 12.7 MBytes 106 Mbits/sec 0.093 ms 374108/383278 (98%)
[5] 5.00-6.00 sec 12.4 MBytes 104 Mbits/sec 0.098 ms 370055/379048 (98%)
[5] 6.00-7.00 sec 12.6 MBytes 106 Mbits/sec 0.130 ms 376262/385372 (98%)
[5] 7.00-8.00 sec 12.2 MBytes 103 Mbits/sec 0.103 ms 370806/379672 (98%)
[5] 8.00-9.00 sec 12.4 MBytes 104 Mbits/sec 0.332 ms 387593/396602 (98%)
[5] 9.00-10.00 sec 12.3 MBytes 103 Mbits/sec 1.715 ms 378426/387355 (98%)
[ID] Interval Transfer Bitrate Jitter Lost/Total Datagrams
[5] 0.00-10.04 sec 5.19 GBytes 4.44 Gbits/sec 0.000 ms 0/3851150 (0%) sender
[5] 0.00-10.00 sec 124 MBytes 104 Mbits/sec 1.715 ms 3752108/3841872 (98%) receiver
(UDP ingress IPV6)
root@vanguard:~# iperf3 -c lon.speedtest.clouvider.net -p 5202 -R -u -b -1 1500
Connecting to host lon.speedtest.clouvider.net, port 5202
Reverse mode, remote host lon.speedtest.clouvider.net is sending
[5] local 2a0a:8dc0:4f::a port 36329 connected to 2a0d:5082:0:4::2 port 5202
[ID] Interval Transfer Bitrate Jitter Lost/Total Datagrams
[5] 0.00-1.00 sec 23.1 MBytes 194 Mbits/sec 0.066 ms 379288/396266 (96%)
[5] 1.00-2.00 sec 23.8 MBytes 200 Mbits/sec 0.054 ms 368035/385529 (95%)
[5] 2.00-3.00 sec 24.8 MBytes 208 Mbits/sec 0.056 ms 372232/390440 (95%)
[5] 3.00-4.00 sec 25.3 MBytes 213 Mbits/sec 0.047 ms 374060/392672 (95%)
[5] 4.00-5.00 sec 25.1 MBytes 210 Mbits/sec 0.051 ms 419978/438400 (96%)
[5] 5.00-6.00 sec 24.6 MBytes 207 Mbits/sec 0.058 ms 383383/401466 (95%)
[5] 6.00-7.00 sec 24.5 MBytes 205 Mbits/sec 0.057 ms 370513/388499 (95%)
[5] 7.00-8.00 sec 24.4 MBytes 205 Mbits/sec 0.052 ms 362986/380911 (95%)
[5] 8.00-9.00 sec 25.6 MBytes 215 Mbits/sec 0.061 ms 369772/388554 (95%)
[5] 9.00-10.00 sec 23.9 MBytes 201 Mbits/sec 0.051 ms 374305/391873 (96%)
[ID] Interval Transfer Bitrate Jitter Lost/Total Datagrams
[5] 0.00-10.04 sec 5.27 GBytes 4.51 Gbits/sec 0.000 ms 0/3965210 (0%) sender
[5] 0.00-10.00 sec 245 MBytes 206 Mbits/sec 0.051 ms 3774552/3954610 (95%) receiver
I think you only have to look at those last 2 tests (for UDP ingress). Look at these lines:
[ID] Interval Transfer Bitrate Jitter Lost/Total Datagrams
[5] 0.00-10.04 sec 5.19 GBytes 4.44 Gbits/sec 0.000 ms 0/3851150 (0%) sender
[5] 0.00-10.00 sec 124 MBytes 104 Mbits/sec 1.715 ms 3752108/3841872 (98%) receiver
[ID] Interval Transfer Bitrate Jitter Lost/Total Datagrams
[5] 0.00-10.04 sec 5.27 GBytes 4.51 Gbits/sec 0.000 ms 0/3965210 (0%) sender
[5] 0.00-10.00 sec 245 MBytes 206 Mbits/sec 0.051 ms 3774552/3954610 (95%) receiver
(Sender is clouvider iperf3 server, receiver was my clouvider VPS)
I don't know why support couldn't accept that I was experiencing this issue. Instead they continued to gaslight me which resulted in wasting my weekend trying different OS and configurations (they blamed the OS and wireguard). Clean installs with only iperf3 installed.
Clouvider:
""^ lesson for the future, do not spend considerable engineering resources proving the issue is not on our end while just offering the impossible to convince Customer a full refund (on a non-refundable service) 😉.""
This is my last message regarding this matter.
To steer the discussion away towards a topic concerning all BF&CM LET clients that posted their order number here:
will the doubled bandwidth be reflected under vps service details in the Clouvider console?
hey!
my order 1965256789, you did't added
Only gets reflected in VirtFusion if I remember correctly, not in HostBill.
Yes, I could. I could see 5TB was now 10TB in VPS control panel.
I see it neither in HostBill nor in Virtfusion panel atm. Time will tell. Maybe the last bulk round of applying those did not happen yet.
We did not apply all double bandwidth yet - we'll update the thread once all is complete
.
You're doing it wrong.
-1? You mean -l, I'm guessing.
-l? That is silly if you don't know what you're doing. You're killing your buffers.
-b, you need to specify the value. Like -b 300M. This is likely the biggest issue.
The simplest test is TCP with just the server address. Start from there and add 3 parallel streams. That should be close to your UDP max.
https://iperf.fr/iperf-doc.php
PEBKAC
I'm sure the Clouvider staff already had it out with them from looking a the above interactions. I'd love to see a screenshot of their ticket/communications.
Or just yabs.
Did a few UDP iperf3 tests and I can confirm the same behavior on my Clouvider London VPS - udp can reach ~100Mbps for ipv4 and ~200Mbps for ipv6, no matter the destination is Clouvider's speedtest server or not.
My Frankfurt VPS can reach a few hundred Mbps but is still far from tcp, so it might be different across locations
External server to Clouvider's speedtest servers can reach a few Gbps
Just sharing what I'm seeing. I don't mean to attack the provider.
Bandwidth doubled for your orders! Keep 'em coming, we're here to make the pipes wide enough for all the fun. Thanks for the love! 🎉🚀
Bandwidth doubled and ready for action! Thanks for your order—hope you enjoy the extra lanes on the highway! 🛣️✨
Bandwidth doubled! New account or old, we treat everyone like VIPs in the fast lane. Thanks for rolling with us! 🏎️💨
And and done! Thanks again
Your bandwidth is now DOUBLE the fun! Thanks for the order—go ahead and enjoy the high-speed adventure! 🚀😎
Bandwidth doubled like a boss! Thanks for the order—let the good times (and bytes) roll! 🎉💾
Done and done! Bandwidth doubled faster than you can say "speed boost." Thanks for the order! 🚀🔥
Bandwidth doubled, and there was even more rejoicing! 🎉🐾
Your bandwidth has officially been doubled! 🚀✨
Bandwidth doubled faster than you can say "high-speed"! Thanks for the order, Erick! 💨📶
Double the orders, double the bandwidth, double the fun! Thanks for keeping us busy! 🚦🔥
Bandwidth doubled for both servers! Your network's about to be unstoppable. 🚀💻💻
Bandwidth doubled, served fresh and toasty, just like bread! 🥖🚀
Bandwidth doubled and ready to go! Thanks for the order—enjoy the extra speed boost! 🎉
Thanks a lot for the repeated business
Bandwidth doubled, Bobert-style! Thanks for the order—time to speed things up! 🏎️
Bandwidth doubled and standing by for action. Thanks for the order! ⚡
Bandwidth doubled, uptime unmatched! Thanks for the kind words—your network just got even better. 🚀💪
Bandwidth doubled, deal made amazing-er! Thanks for being part of the fun! 🎉
Glad to be here! Bandwidth doubled
Welcome back! Bandwidth doubled—it’s great to have you zooming with us again! 🚦🎉
Double the orders, double the bandwidth, double the thanks! Your servers are ready to rock. 🎸🚀
Bandwidth doubled and ready to go! Thanks for the order—speed is your new best friend. 🚀✨
Bandwidth doubled—now you’ve got room for more of everything! Thanks for the order! 🎉⚡
Bandwidth doubled faster than you could say "hi"! Thanks for the order—enjoy the speed! 🏎️💨
Bandwidth doubled! Thanks for grabbing the deal! ⚡
Bandwidth doubled and ready to power up your network. Thanks, Zorker! 🚀⚡
9p hopefully credited
Give us a shout if not! Bandwidth doubled with thanks! 
Another one! Bandwidth doubled yet again—your network just keeps getting better. Thanks! 🚦
Another one? You’re on fire! Bandwidth doubled again—keep the good times rolling! 🔥🚦
Bandwidth doubled—thank YOU for your order! 🚀📈
Another one?! Bandwidth doubled yet again—you’re officially the speed champion. 🏆💨
Bandwidth doubled once more! Thanks for keeping us busy—your network is unstoppable. 🚀
Bandwidth doubled and good to go! Thanks for choosing us for your speed needs. 🏎️
Bandwidth doubled with pleasure—thank you for the order! Time to enjoy the boost. ⚡🎉
Triple bandwidth doubling?! You’re finishing Black Friday with style! Thanks for the orders—your network is now LA-ready. 🌴🚦🚀
You’re welcome! Bandwidth doubled and good to go—thanks for being part of the fun! 🎉✨
Bandwidth doubled for both orders—just in time for Big Ben’s approval! Thanks for squeezing in the extra speed request before the clock struck 12! 🕛🎆
All double bandwidth requests submitted during the time the offer was running have now been executed. You should see it reflected in the Cloud Controller
Please note, https://console.clouvider.co.uk packages will show the original (non-doubled) values.
Many thanks for participation and all the fun!
Thank you!
Also please let us know in the future once you have additional bandwidth packages available for the smaller vps services, as I will probably need a few more in the near future, and would love to have the 10tb option instead of the 5tb one.
do you have rack pics?