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Best Ethernet Setting for 1GB Internet


Is Auto Negotiation always the best setting for Ethernet and Internet?


I'm running an Intel I-225V 2.5GB Ethernet Card, Virgin Media Super hub 5 in Modem Mode Connected to its 2.5GB Port and 1GB Internet, TP Link AX6000 Router which has a 2.5GB Internet Port and all the Ethernet Cables are Cat 7.

MAIN PC (Beast) - Asus ROG Crosshair Hero VII WIFI  with BIOS 4703, AMD Ryzen R9 3900XT + Corsair H115i Pro RGB XT Cooling, 32GB G.Skill 3200Mhz 16,18,18,38 1.35v DDR4, Inno3d HerculeZ Design Nvidia GTX 1080 X2 8GB GDDR5,  1 x Samsung U28E590D & 1 x Samsung U32J59XUQ 3840 x 2160 4K, 1 x Samsung Evo 970 Evo Plus NVME PCI-E 1TB, 1 x Samsung Evo 850 250GB, 1 X Sandisk Ultra II SSD 240GB + 2 X 3TB Seagate Barracuda SATA III, 1 x LG BH16NS40 16x BR\DVDRW, ICYBOX IB3740-C31 & ICYBOX IB3640-03,  MZHOU 7 Ports PCIe USB 3.0 Card, 1 x XIAOLO 2.5G Intel I225V Ethernet Card, 2 x UGREEN Hard Drive Enclosure 3.5 inch External SATA Disk Caddy Reader USB 3.0 2.5 3.5 HDD SSD 16TB UASP Case Dock Station With 12V 2A Power Adapter For Windows with 6TB Seagate Barracuda SATA III, Corsair Obsidian 750D Wind Force Edition Case + 5 Corsair ML140 140mm Case Fans, EVGA 750 g3 750w Gold 80+ PSU, Logitech MX Vertical Mouse, Logitech MX Vertical & MX Ergo Trackball Mouse using same USB unifying device, Microsoft Ergonomic Keyboard, Windows 11 Pro x64 Retail, Synology ds215j NAS + 1x3TB WD Reds connected to a 6TB Seagate USB 3.0 Backup Plus Hub, Blue Yeti Microphone, Logitech C922 Pro HD,  Logitech C920 Pro HD, Bit Defender Total Security 2021.


Second PC (Cyclops) - MSI 990FXA Gaming, AMD FX 8370 4Ghz, Corsair 16GB Vengeance Red 9-9-9-24 1600Mhz, Arctic Cooling Freezer 13, Asus Strix 1050TI 4GB, 1 X Acer 27" Full HD Monitor, 1 X Sandisk Ultra II SSD 240GB, 1 x Samsung Evo 850 250GB, 2 X Seagate Barracuda 2TB, 1 X WD Black 2TB, 1 x ASUS 16x DVDRW, X-Case Eagle III Case, 3 X Corsair AF 120 Case Fans, EVGA 850 G2 80+ Gold + PSU, Logitech MX Master Mouse, Corsair K30 Keyboard, Logitech C920 Webcam, R0DE NT1-A Microphone, Scarlet 212 Audio Interface (Revision 2), Windows 10 Pro X64 Retail, Bit Defender Total Security 2021, 2TB Seagate Expansion USB Hard Drive.


Third PC (Old Trustie) - Acer Aspire M3400, OEM Mainboard, AMD FX Athlon II X3 425 2.7Ghz, 16GB Corsair Value 1600Mhz Ram, OEM CPU Cooler, AMD R7 260 2GB GPU, 1 X Acer 27" Full HD Monitor, 1 X Sandisk Ultra II SSD 240GB, 2TB Samsung SATA III, 1 X OEM 16X DVDRW, 1 X Acer OEM Case, 1 X Corsair AF120 Case Can, Corsair CX500 Bronze+ CPU, Logitech MX Master Mouse, Corsair K30 Keyboard, Windows 10 Home X64 OEM, Logitech C920 Webcam, Bit Defender Total Security 2021.


Printers Include - Canon MG5750, Canon, IP8750,  Canon Pixma Mega tank G5050 & 2 X Samsung Xpress C410W.


1 X Zexrow Xbox360 Wired Game Controller.


TP Link Archer AX6000 Cable Router Wifi6 with a Virgin Media Hub 4.0 in Modem only mode running 1GB Fibre internet.


Samsung Galaxy S21+ 256GB Mobile Phone.


Internet Speed.....


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Pretty much. You should never need to switch off of auto negotiation. 'Manually setting' them is useful mainly for legacy reasons, diagnosing, or using an old unmanaged hub or something that doesn't properly negotiate link speeds.


Your router only has one 2.5G internet port and the rest are gigabit. So if you have your modem connected to the 2.5G WAN and your computer connected to another port - it will only link at 1G.


If you're having issues connecting, I would try a different cable. Especially if you've bought them from Amazon, there are so many poor quality fakes (esp 'Cat 7') it's absurd. Even (good quality) CAT 5e can keep 2.5G Ethernet speeds so don't feel too compelled to shell out a lot for expensive cabling. I'm using a Cat 5e patch cable from a spool I bought in 2002 for my proxmox/nas. It links and transmits at 2.5G no problems.

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@gen_angry Agreed on all fronts.


Unless you're trying to set up an ancient NIC that only works at 10/half, leave everything on Auto and let the devices sort out link speed and duplex. Pretty much everything made in the last 25 years should be plug-and-play.

Dell owns my soul.

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