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Questions tagged [bandwidth]

Bandwidth tag should be used when asking questions about data transfer rates over various data buses or network protocols.

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WIFI drops out when running anything intensive

Running windows 11. I have a fairly new pc <1 year old and for the last few months I've had this issue where the moment I start running anything computationally intensive, whether it's installing a ...
Nice Engine's user avatar
0 votes
0 answers
21 views

Find source of bandwidth cap

Good day! There is a group of Ubuntu 22.04 LTS workstations at work that me and my coworker use to run different kinds of jobs. Both me and another coworker are sudoers on the machines, and we are ...
arthuro555's user avatar
11 votes
2 answers
3k views

Can I leave my bandwidth higher than it actually is?

When setting up my internet connection, my router asks for the upstream and downstream bandwidth. What does this really do? Is this only for limiting bandwidth to proritze between networks? So if you ...
Elekam's user avatar
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28 views

Check Max Thunderbolt 3 Speed

How do I check the bandwidth (max Gbps) of my Thunderbolt 3 port? I'm trying to see if it can handle supporting 4 additional monitors with my Wavlink docking station (so that I can get either 1080p/...
Yusuf's user avatar
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0 answers
21 views

Diagnosing connectivity/bandwidth issues in multi-level virtual infrastructure

Core Question How can I both maintain internet connectivity in the L0 Host while also establishing a stable connection in the L2 Client with enough bandwidth to support video conferencing? How can I ...
morphatic's user avatar
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Windows Store downloads are severerely rate limited - why?

Windows Store downloads are severely rate limited on my Windows 11 (10.0.22631.3085 23H2) computer and I can't figure out why (nor can our IT guys). What could be causing it? The download rate is ...
Charles Roper's user avatar
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0 answers
151 views

Will plugging a USB device into a higher standard port improve data transfer rates if the max rate of the original port wasn't being reached?

I have an external USB 3.2 gen 2 SSD that I plug into a front USB 3.0 port on my PC. Let's say that when copying files I get an average transfer speed of less than 200 MB/s. (lower than both the ...
TechHorse's user avatar
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0 answers
109 views

Qbittorrent hogging bandwith even with limits and QoS

I changed ISP a while ago and since then qbittorrent has been hogging all my bandwidth whenever its used and all other devices lose internet. I have a 500MB d/l and 50MB u/l from my ISP which is twice ...
Twerm's user avatar
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1 vote
1 answer
931 views

Expected results of a stream memory bandwidth benchmark

I recently built a Threadripper system and ran the stream memory bandwidth benchmark on it. The results are much lower than the theoretical bandwidth of the system, and I am not sure if these transfer ...
Peter Li's user avatar
0 votes
1 answer
439 views

Downloading is using all my bandwidth, preventing any other apps connecting to the internet. Why?

This is new. I've been in many locations with many ISPs, i'm even certain this was not the case prior to the past 3-4months on the same ISP i moved into the current property with. I used to be able to ...
JacksonBrownPants's user avatar
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149 views

Bandwidth control using traffic control `tc` on Strongswan ipsec connection

I am in the need to use traffic control tc to regulate the bandwidth. From what I known is that I can manage the bandwidth using the following DEV=eth0 RATE="100kbps" tc qdisc del dev $DEV ...
Ole K's user avatar
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How to make RAID-1 (almost) full bandwidth when processing the sequential write/read?

When I read OSTEP chapter 38 about RAID, it says in p10: The 1/2 penalty assumes a naive read/write pattern for mirroring; a more sophisticated approach that issued large I/O requests to differing ...
An5Drama's user avatar
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1 answer
84 views

Does remote desktop redraw the entire screen or just the part that was changed?

If I have a more colorful image on an RDP lock screen, will it redraw the entire screen (thus requiring slightly more bandwidth) or does it just send the parts of the screen that change (i.e. the dots ...
Peter Turner's user avatar
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0 answers
53 views

TCP Receiver's Window stop increasing

I'm debugging a high-bandwidth TCP connection whose throughput is significantly lower than the capability of the device and the network. The network between these 2 hosts is expected to be high ...
Alex's user avatar
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2 answers
190 views

Max theoretical powerline bandwidth using more than 2 devices and recommended speed for 1 Gbps network ports

I'd like to set up a powerline based network on a 3 storey home. I'd like it to be as reliable and as fast as possible. My network equipment has 1 Gbps ports. I see that some powerline products can go ...
Unai's user avatar
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0 votes
1 answer
39 views

Bandwidth issue of my gigabyte network

Every device in the network supports gigabyte transferring. All wires are CAT6 (flatten wire). The maximum bandwidth can only achieve 1000Mbps for less than 24 hours. The next day when I tested the ...
Tom Hsiung's user avatar
0 votes
2 answers
783 views

How to monitor disk I/O in Linux without iotop?

I recently discovered iotop, which is Python program that monitors disk I/O in real time. It shows me which program is reading and writing the most and the rate. Iotop is problematic however. Getting ...
swwwww's user avatar
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1 vote
0 answers
66 views

Achieving 1Gb/s using PCI (not express) NIC

I am using an old PC (Phenom II x940, 3GB of ram) as a NAS. The motherboard's build-in NIC was only 100 mib/s so I bought a used Intel Pro/1000 GT (connected via PCI (!) - not PCIe) to achieve better ...
zajer's user avatar
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0 answers
126 views

iPerf UDP no loss but Client/Server bandwidth don't match?

No major loss of datagram occured, but the server bandwidth is extremely low, and don't match the client side, why? Client command: iperf3 -c 10.255.0.2 -p 5001 -t 10 -i 5 -l 60k -u -b 15G [ ID] ...
Sky's user avatar
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0 answers
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Debug slow home network

I don't know how to approach this problem. The TL;DR is that my internal home network is "slow". Here is the setup: I live in the UK. I have a Sky ER115 router Directly plugged into the ...
Rififi's user avatar
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1 vote
0 answers
38 views

How can I further identify and fix network speed slowdown on home LAN?

I have been trying to troubleshoot a home LAN throughput issue. I have an Asus router with two boxes, a Windows 11 PC and an Unraid Linux server, connected directly with cat6 cables to 1Gb ports. The ...
allenpdx's user avatar
0 votes
1 answer
318 views

Cable modem speed limitations

I have been doing some research on different modems and I am getting quite confused about some of the speed numbers in the product specifications. Below are some examples from Motorola modems. If you ...
User9123's user avatar
  • 101
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0 answers
99 views

QOS bandwidth error in LB-Link Router

I'm trying to limit my phone bandwidth in LB-Link Router to (24mb/s upload, 49mb/s download) LB-Link uses kb/s, according to Google, (49mb/s = 392000 kb/s), but I get the following error "The ...
Mr.Robot's user avatar
-1 votes
1 answer
95 views

Network usage monitoring per device

I have LTE modem connected via ethernet to TP-Link archer ax20. I have 400GB monthly limit and i see that from some time internet usage increase. I want to start monitoring internet usage by device to ...
skoczo's user avatar
  • 1
9 votes
2 answers
1k views

Is 2.4 GHz Wi-Fi band shared across routers?

When having a router with a 2.4 GHz connection, I understand from my previous question that it will be slower than a 5 GHz one, but I am confused on the following: Is the 2.4 GHz more congested due to ...
smith's user avatar
  • 197
-1 votes
1 answer
101 views

Router bandwitch vs ISP bandwith

when I am using a router for example of 300Mbps, and i have a download speed of 100Mbps and 25 Mbps of upload, when i am connecting to internet, is this speed affecting my lan bandwidth? for example, ...
Grg's user avatar
  • 1
2 votes
0 answers
343 views

Poor network performance over internet, but flawless iperf3 results

I'm using a linux system as a router/firewall, with the following kernel: Linux gentoo 6.0.8-gentoo-stripped-wireless #1 SMP PREEMPT_DYNAMIC Tue Nov 15 08:54:22 CST 2022 x86_64 AMD FX(tm)-8150 Eight-...
Desultory's user avatar
  • 318
0 votes
1 answer
59 views

Laptop as wifi repeater is slowing down internet speed

My laptop has 2 wireless cards, onboard wifi, and USB wifi (3 dbi high gain). I have set up USB wifi to connect to access point, and onboard wifi as a hotspot (nmcli AP mode, named HostedAP). ...
Trishansh Bhardwaj's user avatar
0 votes
0 answers
133 views

Measure average bandwidth and latency of program macOS

I have a program I have made and I want to analyze the performance of said program, specifically the impact of the network connection. The program will send multiple requests to one API (incase that ...
Glenn O's user avatar
0 votes
1 answer
1k views

How do I monitor real time USB bandwith in windows 11?

Many suggest USBDeview but I do not see where that app displays any bandwith information. All I want is a way to monitor how much of the 480mb/s of my USB 2.0 port is being used and by which devices. ...
Jewelz's user avatar
  • 1
0 votes
0 answers
36 views

How to fix unintentionally bandwidth sharing of 2 different fiber optic lines?

I have 2 different fiber optic lines on 2 separated accounts, separate routers but of the exactly same model from the same ISP. They both have their own IP address. The problem is that when I upload ...
God of Money's user avatar
0 votes
2 answers
1k views

How can I calculate necessary WiFi bandwidth based on # of devices at home?

For my home network, I'm trying to set up a Wifi 6 mesh network. My internet provider subscription gets me 150 Mbps officially, but in practice runs up to about 260 Mbps (max. measured over Wifi 5GHz)....
SabbeRubbish's user avatar
0 votes
0 answers
184 views

Set minimum bandwidth for Browser

I want to download Games in the background while watching videos/streams on Firefox, but my video always stutters because Steam, EpicGames, etc take all the bandwidth. Can I set a minimum bandwidth ...
Joona's user avatar
  • 1
0 votes
2 answers
48 views

How do I determine why my Windows 10 bandwidth is so much lower than my Macbook Pro?

I'm using a Windows 10 machine (Dell Precision 5560 PC) and am noticing that my bandwidth (at least measured by speedtest.net) is 4 to 5 times lower than my MacBook Pro 2017, both on the same network, ...
Dave's user avatar
  • 104
0 votes
1 answer
3k views

Does DisplayPort 1.4 support 4K@144Hz HDR?

I bought an Asus PG32UQ monitor recently and connect it using a mini DP (eDP 1.4) with my HP ZBook Fury 15.6 Inch G8. And to my surprise, I can run at 4K on 144Hz with HDR enabled. This is a bit ...
Matěj Pokorný's user avatar
1 vote
1 answer
16k views

Bandwidth Control with Queue in Mikrotik

good time I set a bandwidth limit in Mikrotik(simple queues) for each IP, and now I need to set a general bandwidth limit for each of my networks. My question is how to set a 10M limit for a range ...
s.mostafa.b's user avatar
0 votes
0 answers
62 views

What is a reliable way to check how the quality of WiFi internet connection varies with time?

At the shared house I live in, internet seems to work fine. For instance, I seem to have no issues when watching a movie on Netflix or a video on YouTube, or when I download some document or other ...
Enlico's user avatar
  • 209
1 vote
1 answer
3k views

Terrible Windows iperf performance

I'm having a weird issue that's totally stumping me. The performance of 10G ethernet on my Windows computer is poor in the incoming direction from one computer, and exceptionally poor from another. ...
iAdjunct's user avatar
  • 1,672
1 vote
1 answer
226 views

How to ACCURATELY Measure ACTUAL BANDWIDTH Performance of a Full-Fibre FTTP Broadband Connection

I have an 80MB Down / 20MB UP FTTP broadband connection. I did a an Internet Speed Test and this reported a performance of 43 MB. Review of bandwidth and CPU usage on the router didn't account for the ...
F1Linux's user avatar
  • 373
0 votes
1 answer
405 views

Would WAN traffic affect LAN traffic?

Say I have a PC and a NAS connected to a router. On the PC I downloaded a file through torrenting. Now I want to both seed the file and locally upload it to my NAS at the same time. Would the two ...
kkycble's user avatar
0 votes
0 answers
76 views

Internet not working when lower bandwidth is used, works with higher bandwidth

So I will try to explain this as clear as possible. My internet works just fine when I need to use more than 1M/s for example when watching YouTube,(both my phone, for WiFi, and my pc for Ethernet are ...
Mihai Cazac's user avatar
1 vote
0 answers
18 views

Eliminate bandwidth bottlenecks between far-away computers

Our office location (in Karlsruhe, Germany) has fiber-optic internet access with 500MBit/s upload and download speed. This speed is confirmed by e.g. https://www.speedtest.net/ (reaching > 400MBit/...
Philipp's user avatar
  • 443
1 vote
1 answer
991 views

When is power and bandwidth shared among USB ports?

I’d like to know when power and bandwidth is shared among USB ports on a PC. Let me give an example and please correct me where I may be wrong: I have a PC with 5 USB ports: three are USB 3.0 and two ...
Antonio23249's user avatar
  • 1,001
0 votes
0 answers
487 views

Can I measure the bandwidth into a USB 3.0 port?

Some background: On a Windows 10 PC, I have three cameras connected to a USB 3.2 Gen 2 hub, which is connected to a USB 3.0 Root Hub on my PC. I am viewing the video streams using OpenCV in Python, ...
Rocketmagnet's user avatar
0 votes
2 answers
11k views

Can DisplayPort 1.2 support 10-bit (8+2FRC) color at 1440p and 144hz?

Generally speaking, I'm trying to determine if a given DisplayPort version will support difference display modes (resolution, refresh, and color depth). For this specific instance, I'm looking at the ...
WannabeCoder's user avatar
0 votes
0 answers
902 views

Difference in speeds between iperf and broadband speed test

Why would these iperf commands give such slower results to an in browser broadband speed test? I've tried a few different free iperf servers and they all give similar results. I am wondering if I am ...
spangeman's user avatar
  • 153
0 votes
1 answer
6k views

Best WIFI configuration for HG8145V5 (range configuration)?

I'm currently sharing my network with +20 devices, the signal in some places is very poor, the modem is in a high open place, looking at the advanced 2.4G settings I see these options, is there ...
The fool's user avatar
0 votes
0 answers
157 views

What's the difference between PCI-e size and bandwidth? [duplicate]

There is a note that says : 1x PCI-e x16 slot, running at x4 1x : the number of slots. x16 : the slot size. x4 : ??? I know there are 4 sizes (x1, x4, x8, x16) But also the same numbers for "...
Roo Tenshi's user avatar
0 votes
0 answers
830 views

Transferring a 28GB directory with lftp:mirror was slow and caused 4 TB of bandwidth usage

I'm writing this post in hopes to learn what I did wrong. Linux isn't my forte, but I am comfortable with it and do read the man pages when I don't remember how to perform a task. Hopefully someone ...
ross_troha's user avatar
0 votes
1 answer
399 views

Do apps in focus get more network bandwidth on Windows 10?

When downloading large files in the background with a Download Manager, I noticed that whenever I switch to focus the download tab, the speed would increase often by ~1 MBps. My internet speed is ...
Alex Wang's user avatar

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