Windows 10: Ethernet slower and less reliable than Wifi

Discus and support Ethernet slower and less reliable than Wifi in Windows 10 Software and Apps to solve the problem; Hey folks, I have been having really bad Ethernet connection issues. I am using a brand new Cat6 10gbps cable routed so as not to be damages. My... Discussion in 'Windows 10 Software and Apps' started by ModernGunCraft, Jun 20, 2025 at 2:43 PM.

  1. Ethernet slower and less reliable than Wifi


    Hey folks, I have been having really bad Ethernet connection issues. I am using a brand new Cat6 10gbps cable routed so as not to be damages. My Ethernet throughput in task manager is extremely choppy and only ever hits 5-6mbps. It mostly affects online gaming, no lag just a complete disconnect. On a Wifi 5ghz connection with port forwarding I a pulling 4-500mbps download and 3-350mbps upload speed. The ethernet port on my PC can handle 1000mbps speed according to the network properties. I did a fresh install of the Realtek Gaming 2.5GbE Family Controller and disabled Large Send Offload for IP

    :)
     
    ModernGunCraft, Jun 20, 2025 at 2:43 PM
    #1
  2. LVMan777 Win User

    WiFi and ethernet together


    "...Theoretical speed versus actual speed

    ... Wi-Fi is very convenient, but it does not match the speed and reliability of wired Ethernet.



    • ...though 802.11n can theoretically reach 300 Mb/s, a 100 Mb/s wired Ethernet connection will often outperform it in real-world usage, because wired Ethernet networks perform more closely to their theoretical limits and are less susceptible to outside influences..."
    • Transporter: Wi-Fi versus Ethernet performance
     
  3. 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
     
  4. revdrw Win User

    Ethernet slower and less reliable than Wifi

    WIFI Works, Ethernet won't

    OK but why?

    NOT YELLING, JUST EMPHASIZING

    Please note, I installed the new Lynksis, it worked just fine for 3-4 days on both my MACBOOK PRO when in ethernet connect and the Dell, then the ethernet just quit working for both my MacBook Pro and Dell desktop. It did work, then just quit for no apparent reason. WIFi for iPhone, iPad, Andriod Phone, and when I set to wifi for my MacBook pro all work fine.

    Detailed history: I first noticed that on my Desktop dell that is CAT5 ethernet connected to the WIFI ROuter, that it stopped, no internet access. I began to trouble shoot, and turned off my WIFI on my MAcbook and it wouldnt work either, plugged into same router but different cat5 cable. At that time, all WIFI devices still worked. I figured that it must be the ethernet side of the WIFI router, so I replaced the router with brand new one. the Lynksys N900 listed in original thread. Ethernet and everything worked just fine for 3-4 days. But then ethernet quit, but wifi still works.

    Whatever the problem, it affects both my MacBook Pro and Dell with WIN 7. I'm guessing it is NOT a computer problem, if it is it is affecting both my Mac and Dell, separate cat 5 cables to same wifi router

    To remixedcat, I don't know for sure how to check IP settings, see above post, no damage apparent to anything.
     
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Ethernet slower and less reliable than Wifi

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