Questions tagged [gigabit-ethernet]

Gigabit Ethernet (GbE or 1 GigE) is a term describing various technologies for transmitting frames in a network to a speed of Gigabit per second (1,000,000,000 bits per second), defined in IEEE 802.3-2005.

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53 views

DIY Cat6 cables only giving 100Mbps instead of 1Gbps

I've made my own ethernet runs in the past and they've always worked great. I needed to make some more so I got some cable, some RJ45 connectors and a crimper. No matter what I do I can't get the ...
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Internet speed capped at 100 mbits on Realtek PCIe Family Controller, until I manually replug the cable

Basically, until I unplug and plug back my cable, I'm stuck at a 100 mbit connection. Replugging it fixes the issue, but I'd hate to do this every time I start up my computer. Could someone please ...
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How to connect to 3 devices on the same subnet with a network adapter card

I have assembled 1 PC with Ubuntu version 20.04.3.LTS. That PC needs to be used to connect to 3 cameras which are sending their data via an ethernet connection using TCP protocol for configuration and ...
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Changing Intel X710 fiber NIC speed

I have a optical X710 NIC which runs in 10000Mb/s speed (SFP+). I use "ethtool" to show its capabilities: ethtool enp1s0f0 Settings for enp1s0f0: Supported ports: [ FIBRE ] ...
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Why don't some of my devices connect to internet and yet some don't?

So I have run 4 wire ethernet throughout my house and I can't connect to the internet on my ps4 and some other devices on the socket in my main room but am able to do so through my laptop. Is it ...
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TP-link switch dropping packets

I have a managed tp-link JetStream gigabit switch (48 port). It was working fine for years till recently, when it started to drop packets after few weeks of operation. This behavior degrades very fast,...
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40 views

LAN with a slow router and a fast layer 2 switch: why does the router affect the ethernet speeds?

Here's my LAN layout: [Laptop (Windows 10)] [Raspberry Pi (Ubuntu)] \ / (Layer 2 Switch) | (Wireless router w/ gigabit LAN) ...
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Can't receive images from a GigE camera on Ubuntu 20.04

I have Ubuntu 20.04 running on a ROG STRIX G laptop and a PhotonFocus Gigabit camera connected through an Ethernet cable (no switch). The IPs of both the laptop and the camera are in the same range ...
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Fast wired network in a large building

As everyone knows, ethernet wiring is faster than any WiFi and more secure to boot. Using Cat 8 ethernet cabling can currently provide the best networking speeds where the switches and router can take ...
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65 views

How to figure out which cat6 config is being used?

In true builder fashion I am left to terminate the cat 6 cables wired throughout my new house. I opened the cat6 wall plug to see what order they used so I can match it in the basement...and I have no ...
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Slow file transfer speeds over gigabit ethernet

Within my setup are: 1 FTTP router with Cat5e internet cable out 1 Netgear GS308E gigabit switch, connected to the router via Cat6. 2 devices (1 Raspberry Pi4, 1 thinkpad with gigabit ethernet ...
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Home network, strange cable issue

I'm encountering a strange issue when crimping connectors to my Cat6 cable. To save time I have done the same on a 1 m length to try and solve the issue I'm having with the cable routed through the ...
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Can I plug my modem to an ethernet switch for my router to use?

I am trying to increase my upload speed, but I am currently using the Belkin N600DB as a router (no gigabit ethernet). I would have preferred to buy a better router altogether, but for some reason my ...
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Cat6 cabling faulty? Any way I can salvage this?

I got cat6 cables set-up with my house when it was built. Everything seems to be working fine, until last week when I tried for the first time one of the last RJ45 wall sockets I was yet to use. I ...
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What could cause this ethernet slowdown pattern?

I have a home network (used for teaching, home business, video conferencing and streaming, etc. throughout this year). In July 2020 I had Verizon FIOS installed with 200 Mbps up/down speed and a new ...
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494 views

Ethernet wall socket stack to 100 mbps

I'm living in a recently built apartment in Germany. There are many ethernet wall socket in each room. When connected my Macbook to the router directly with a cat 5e cable I can get around 800 mbps ...
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Homemade Cat6 ethernet not working when PoE is in use

I've just crimped together a couple of CAT6 Ethernet cables. The cables are about 20 meters long each. They are shielded and so are the connectors. They run along each other from one room to the ...
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Gigabit Ethernet full-duplex is actually 2Gbit/sec counting both ways?

My understanding is that gigabit Ethernet over twisted pair, 1000Base-T, is full-duplex by default. Does that mean that the actual bandwidth, can be 1 Gbit/sec in each way simultaneously, hence 2 Gbit/...
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The internet download speed drops to <20 Mbp/s randomly

A few months ago I started noticing internet speed drops, to a point that the internet is almost unusable (sometimes around 10Mbps or 5Mbps, very rarely it drops to 120Mbps). Running a speedtest ...
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553 views

100MBps instead of 1000MBps (ethernet)

[my network card specifications] 2recently I bought a netgear PL1000 ethernet adapter. It has a maximum download speed of 1000Mbps. However I only get around 50Mbps in a internetspeed test. You can ...
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327 views

connect gigabit eth switch to 802.11ac network

I have a wireless router (802.11ac) for internet access which I use directly to connect to with my WLAN devices. I also have small LAN on a gigabit switch. How do I connect the switch to the wireless ...
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gigabit lan setup NOT gettig optimal speed

I have a LAN router from vendor which has 4 ports all ports are connected to machines static ip is mapped to 1 of the machines but static machine is routing traffic to other machines via the same ...
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936 views

Realtek 8111 LAN not working properly stuck on 10mbps

I've opened a MSI support query to the staff but I also wanna ask in this forum too just in case someone can save me. The problem I have is that I've got a Cat 5E ethernet cable plugged into a gigabit ...
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72 views

Intel Enternet adapter l218-LM cannot reach 1Gbit speed

I have a router technicolor DGA223. The router works at 1Gbit/s capacity, and other computers connecting in a wired cable to the router have 1Gbit/s speed. Using the same wired cable and router port ...
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355 views

What can cause the network connection to degradate from 1 Gbps to 100 Mbps

I have a home network with a gigabit router, 2 PCs with Windows and a NAS from Synology. All are connected to the router via ethernet cable. When i bought the NAS, i was able to transfer data with a ...
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674 views

Use raspberry pi 3 as network switch?

I own a raspberry pi 3 with integrated wifi and I have several computers I would like to connect with ethernet cables for gigabit file transfers. Unfortunately the home's router is located on a ...
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10 Gb network card connection

I have just bought the intel X540T2 shown below and when I opened my machine I am not sure if I can plug it in any of the available PCIe slots shown below? If anyone could please advise
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Slow network connection maybe caused by wiring

So today I got my new router and thus my new internet(1000mbit/s down - 50mbit/s up). The networking from my router to my computer is as follows: Router -> Cat5e -> TL-PA8030P -> electrical wiring -> ...
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DL185 G5 poor Ethernet lan speed

I picked up this server for like $20 and just using it for my homelab setup. The problem is that the ethernet speeds are peaking at 8MB/s on the LAN and even worse to the internet down to like 5MB/s. ...
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691 views

Gigabit lan has slow speeds

So I am trying to setup gigabit lan and be able to transfer files across computers at over 100 MB/s. But I can only achieve 20-25 MB/s. My setup is the following: - Two machines: a brand new laptop ...
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Why is my laptop (Debian 10) only connecting with 100Mbit/s instead of Gigabit?

My laptop (Thinkpad T450s) with Debian 10 only connects with 100Mbit/s instead of Gigabit through ethernet, although the network card should be capable of Gigabit LAN (see #2 below). I tried a machine ...
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189 views

Best Gigabit Router Config

There was a question that I posted here [https://networkengineering.stackexchange.com/questions/65695/lan-speed-150-200-mbps-but-wifi-speed-is-5mbps-to-80-mbps] , which was off-topic. Hence I found ...
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Desktop and laptop network speed difference

I have desktop with Win 10 connected to 1 Gbps router via Ethernet, the link is full 1 Gbps (in ncpa.cpl). Also I have old laptop (Lenovo Y500) with the same networking configuration (NICs surely ...
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120 views

Gigabit Ethernet Switch Issues

We have some 10/100 Ethernet devices with intermittent power-up connectivity loss when connected a various Gibabit Ethernet switches. We have tried multiple identical devices, with the same results. ...
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1answer
521 views

Why doesn't my USB Ethernet card ASIX by V.TOP give me 1 Gbps?

My router (Technicolor DGA2232) supports 1 Gbps LAN. I've confirmed this by being able to connect to it via WiFi in speeds close to that. However, when using V.TOP INDUSTRY LIMITED's 3 Ports USB 3.0, ...
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Optimize Performance of Google WiFi and CenturyLink 1Gbps Fiber

I had Google Wifi and it really works well. A few months ago I switched to CenturyLink 1Gbps Fiber service and overall I have been very satisfied with that as well. I have seen other posts of serious ...
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140 views

Inconsistent gigabit LAN speeds

I have two Windows 10 machines connected to my LAN. I have a gigabit unmanaged switch as the hub for my LAN. I looked around online and found Disabling "TCP Auto-Tuning" which didn't help. I then ...
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268 views

Does it make sense to share 10G Lan between 2 RJ-45 ports?

Observing TRX40 Motherboards for upcoming Threadripper 3000 series. So, see 2 mobos i like mostly. Gigabyte TRX40-AORUS-XTREME Gigabyte TRX40 DESIGNARE (rev. 1.0) First one has this in LAN part of ...
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861 views

Windows 10 Network Driver issue

For the past week or so, I've been having an issue with getting an Intel LAN Driver working on Windows 10 1903. I've uninstalled the official Intel drivers and let Windows use its own, then ...
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76 views

Can I use a switch to send high-bandwidth signals from multiple 100Mbps nodes to one central 1000Mbps node?

I want to stream video (compressed, ~20Mbps) from at least six raspberry pi zeros, each of which has a 10/100 USB ethernet adaptor, to a central PC with a 10/100/1000 port. All of the nodes will be ...
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1k views

How does the "Gigabit" bandwidth limit apply in an ethernet network?

Edit: it seems I either misunderstood or was misled by this article, which seems to imply that a 10 Gbps switch is required to make good use of a dozen nodes with gigabit ports. With the clarification ...
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New W10 build giving ~105 Mbps speeds with Full Gigabit hardware and 1 Gbps internet package

I have a bizarre issue. Windows Device Manager shows Auto Negotiation is enabled. Windows Network Status shows 1.0 Gbps Full Duplex. This is where it gets funky though. I just reinstalled Windows ...
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74 views

Direct PC-PC interconnection, parallel to main network

My network is as follows: Wifi-Router + DSL Modem, both in one device several devices that use wi-fi, irrelevant for the question PC A, connected to router via ethernet cable PC B, connected to ...
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524 views

Termination of CAT7A cable with CAT8 Keystone RJ45 connectors

I'm reconstructing our home and I'm thinking to upgrade the network. A part from the computer network I want to run some smart home applications and connect sensors over the network wires with PoE. As ...
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4k views

100mbps speed on a gigabit switch

Disclamer: I'm a total network noob. I'm setting up a home network. I have a small cheap gigabit switch (D-Link dlinkgo GO-SW-8G). I've placed it in a central(ish) location in my apartment and have ...
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1answer
56 views

Slow ethernet, despite GbE hardware: Searching for causes

I am having issues with slow network speeds in my home network between 2 boxes. Here are the specs: Box1: ASRock H97 Performance, Manjaro Box2: ASRock FM2A78M-ITX+, Debian 9 Switch: Netgear GS305v2 ...
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89 views

Intermittent domestic cat6 cable perfomance

Background I recently had an electrician run a cat6 ethernet cable through the walls of my house. It is terminated with standard cat6 faceplates, the cable is shielded and the shield is earthed. It ...
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1k views

How can an ethernet link pointing to a LAN go down, up, down, up… every couple of minutes?

Since yesterday evening I've had the following issue with my (home-brewn) Linux (OpenSuSE Leap 15.0) home server: One of its two on-board ethernet links keeps going down, then up, then down again,… ...
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470 views

Why does my machine only get 180Mbps on a Gigabit ethernet network?

I have a network topology similar to the diagram below: My PC was a custom build, by a company that does custom PC's. It s/has/had top of the line components for the most part. My PC would be PC 1 in ...
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133 views

Poor network throughput, but double under high cpu load

I'm trying to understand a counter-intuitive phenomenon where I get only ~ 400 Mbit/s through a gigabit connection when the CPU is idle, but ~ 850 Mbit/s when the CPU is under full load (stress test ...

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