Windows 10: Slow Ethernet connection on Windows 11.

My old PC with windows 10 recently died. I got a new one with Windows 11, and I noticed my internet speeds dropped. I’m paying for 300mbps, and on the old pc I was getting around 370-380mbps. On the new one it fluctuates between 30-200mbps. I had a tech from my ISP come out and take a look. He replaced my modem and router, checked all the lines, and ran tests on the new equipment. The speeds came out as they should, but on my pc, they were still really low. I’m not running any VPNs, I’ve done the Network reset, ran command prompt as admin and did the ipconfig reset and renew, set my speed &

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File Transfer Speed from Windows 11 to Synology NAS is VERY SLOW vs. Windows 10

I have a new Windows 11 PC and I'm noticing that the file sharing to my Synology NAS is very slow vs when I transferred files from my older Windows 10 PC.

File Transfer Speeds:

• Windows 11 to NAS (DS1520+) = 11.5 MB/s
  
• Windows 11 to Windows 10 = 112 MB/s (much faster)
  
• File size = 30GB
  

Note:

• Windows PCs and NAS are all Ethernet connected on 1GB home network.
  
• Running: Windows 11 Pro 23H2
  
• Running: DSM 7.2.1-69057 Update 5
  

Any suggestions on how to speed this up would be greatly appreciated. Thanks.

***moved from Windows / Windows 11 / Performance and system failures***

 

New Windows 11 Professional PC not recognized by router with wired ethernet connection?

Hi

Welcome to Microsoft community.

It sounds like you've already taken a thorough approach to troubleshooting the issue. Since you've ruled out many common factors, I'll provide a few more steps you can try to diagnose and potentially resolve the problem of your new Windows 11 Professional PC not being recognized by your router with a wired Ethernet connection:

1. Driver Update and Reinstallation:
   
   • While you mentioned that you installed the Realtek Ethernet driver, it's worth double-checking if there are any updated drivers available from the motherboard manufacturer's website. Sometimes, motherboard-specific drivers can help ensure compatibility.
     
2. Static IP Configuration:
   
   • Try assigning a static IP address to your Windows 11 PC. This can sometimes help in situations where automatic IP assignment is causing issues. Configure the static IP within the Windows network settings and ensure it's within the same subnet as your router.
     
3. Network Reset:
   
   • Open the Windows 11 "Settings" app.
     
   • Go to "Network & internet" > "Status."
     
   • Scroll down and click on "Network reset."
     
   • Follow the prompts to reset your network settings. This will remove and reinstall all network adapters and reset your network settings to their default.
     
4. Driver Uninstallation and Clean Install:
   
   • Uninstall the Realtek Ethernet driver completely.
     
   • Reboot your computer.
     
   • Install the latest driver you downloaded from Realtek or your motherboard manufacturer's website.
     
5. Network Troubleshooter:
   
   • Run the built-in Network Troubleshooter in Windows 11:
     
     1. Right-click on the network icon in the system tray.
        
     2. Select "Troubleshoot problems."
        
     3. Follow the prompts to let Windows attempt to diagnose and fix network issues.
        
6. Consider Another Network Adapter:
   
   • If the issue persists, you might consider getting a separate Ethernet PCIe adapter (a different brand) and installing it in your PC. This can help determine if the issue is specifically related to the Realtek adapter.
     
7. Try a Different Router or Connection:
   
   • If possible, try connecting your PC to a different router or network to see if the issue persists. This can help narrow down whether the problem is related to the PC or the network.
     

Remember that network-related issues can be complex, and the solution might require a combination of steps.

Please feel free to let me know if you have any further updates, thanks.

Best regards

Derrick Qian | Microsoft Community Support Specialist

 

My reliable ethernet connection no longer works

Hi Marcia,

To better understand the query, please answer the following questions:

• After restarting is your computer in normal mode or not?
• Are you getting any error message?

I suggest you to reset the modem\ router and check if the Ethernet connection works or not.

If still the issue persist then I suggest you to follow the steps from the below article
“Fix network connection issues” and check if it helps.

Fix Wi-Fi connection issues in Windows - Microsoft Support

Please get back to us with an update on this issue, we will be happy to assist you further.

Thank you