X870E Taichi Lite Ethernet Issue
Printed From: ASRock.com
Category: Technical Support
Forum Name: AMD Motherboards
Forum Description: Question about ASRock AMD motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=77944
Printed Date: 11 Jun 2026 at 10:40am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: X870E Taichi Lite Ethernet Issue
Posted By: anonmous
Subject: X870E Taichi Lite Ethernet Issue
Date Posted: 10 Nov 2024 at 12:35pm
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Hi, I just tried using my ethernet today and when I plug in the cable, the status in Windows says "Network Cable Unplugged." This is a new build. What I have done and checked: * Windows 11 Pro is fully updated. * Installed all chipset and device drivers using the ASRock update utility. * Device manager shows no warnings or unrecognized devices, even with hidden ones showing. * The MB WiFi works. * Device status in Device Manager is "This device is working properly." * I couldn't find anything in the event logs, but you all know how difficult that can be sometimes. * The BIOS is updated to the latest version * LAN is enabled in the BIOS Things I have tried: * Everything on the microsoft support page: https://support.microsoft.com/en-us/windows/fix-ethernet-connection-problems-in-windows-2311254e-cab8-42d6-90f3-cb0b9f63645f" rel="nofollow - https://support.microsoft.com/en-us/windows/fix-ethernet-connection-problems-in-windows-2311254e-cab8-42d6-90f3-cb0b9f63645f * Disabling/re-enabling my WiFi * Three different ethernet cables, all of which have been validated to work on my old computer: I plug each of them into the old computer, have a valid connection, unplug and then plug into the new computer and have "network cable unplugged status." * Logged in to my router to make sure I hadn't done anything funky with DHCP. As of now, I only have a single reserved address which is for my old computer and a couple hundred free IPs. * I've run the 'Diagnose this connection' wizard and it tells me I need to plug an ethernet cable into the port. This MB is only 32 days old, I really, really hope ASRock has some good support. Thanks. |
Replies:
Posted By: CharlieQT
Date Posted: 20 Nov 2024 at 4:30am
| I have the same problem. my LAN is not working. |
Posted By: Rixuxs
Date Posted: 21 Nov 2024 at 6:11am
| I have same issue as well LAN not working, very fresh windows 11 install with drivers from Asrock site, I think it broke when I connected front panel sound, because I didn't manage to get sound from back panel. |
Posted By: junpit
Date Posted: 23 Nov 2024 at 2:11am
| Mine is connected but only at 100 mbps |
Posted By: imjackscolon
Date Posted: 25 Nov 2024 at 1:38am
| To eco, I have the same issue, I tried absolutely everything, it doesnt work. Its a brand new board dude --____-- |
Posted By: junpit
Date Posted: 25 Nov 2024 at 2:25am
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You?™re going to love me for this?? Try this following https://www.reddit.com/r/buildapc/comments/tft3u0/is_realtek_25gbe_lan_issue_fixed/" rel="nofollow - https://www.reddit.com/r/buildapc/comments/tft3u0/is_realtek_25gbe_lan_issue_fixed/ Note that this fixes it completely for me I don?™t advise turning off flow control however. It?™s the other crap defaults which Realtek set on this card which makes it impossible to connect any other decent network device. |
Posted By: litiantian
Date Posted: 28 Nov 2024 at 6:34am
| not working... |
Posted By: litiantian
Date Posted: 29 Nov 2024 at 8:20am
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I bought an Ethernet Switch, and the problem is solved... ASRock owes me a gift card. https://www.amazon.ca/gp/product/B0C64N2QN7?ref=ppx_pt2_dt_b_prod_image" rel="nofollow - https://www.amazon.ca/gp/product/B0C64N2QN7?ref=ppx_pt2_dt_b_prod_image |
Posted By: dudley1881
Date Posted: 09 Dec 2024 at 4:32am
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Same issue, motherboard installed on Nov 25, 2024 , ethernet port working no problem by Dec 5th, 2024 the ethernet port does not connect. Checked the network cabling with other devices all work but no activity lights when plugged into the X870E ethernet port 5G. Using WiFi until I find a solution, must have been a patch or update, as it was working. |
Posted By: tomcattweak
Date Posted: 11 Dec 2024 at 12:17am
| According to the Realtek - Ethernet Diagnostic Utility under Cable I have varying wire pairs that are shorted, open or normal when (good)cable is connected and pairs 1-2, 3-6 short and pairs 4-5 & 7-8 open when no cable connected. Had it automagically fix itself for a few hours then back to not working. It connected at 100 and had only one pair shorted then all went normal and was @ 1000. I'm running 1126.21.903.2024 from Realtec website for the RTL8126. |
Posted By: michalsti
Date Posted: 12 Jul 2025 at 5:15pm
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Guys I had same problem with my X870 Taichi. One day suddenly my LAN stopped working. No solution would work, I ended up buying USB->Ethernet dongle. Some time later my Bluetooth stopped working, just gone from system. Tried all, reinstalling, BIOS etc. All seemed fine but it just wasn't there. AND! I found a solution in a different topic on this board by someone using older board years ago. THE SOLUTION IS: Unplug the power cable completely, leave the PC for a couple minutes like that, discharge all that might be left. Then reconnect the power cable to PSU and both LAN and BT are back! |
Posted By: Prognoz
Date Posted: 16 Nov 2025 at 12:35am
| @michalsti solution works, thank you so much for providing the solution! |
Posted By: Basemath
Date Posted: 31 May 2026 at 12:09am
| @michalsti Brooo i'm just a guy who created an account to tell another guy I LOVE YOU. Thanks I wish you all the best! |
Posted By: Xaltar
Date Posted: 31 May 2026 at 1:16am
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Awesome, that is exactly what these forums are here for. Not only to ask for help but also as a repository of advice and tips to be used. I have made the thread a sticky post so it is easier for others to find. ------------- 
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Posted By: Basemath
Date Posted: 01 Jun 2026 at 2:48am
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Thanks Xaltar. This repository directly saved me money I needed. I'll give more context in case others go through similar sympotoms. Problem started with Ethernet rapidly disconnecting then connecting for like a minute straight, then it's ok for the rest of the day. This happened daily for a couple of weeks until it suddenly decided to just remain disconnected with a "network cable unplugged" status like OP. No amount of troubleshooting worked. New cable didn't work. Was about to buy a USB Ethernet dongle but a last Googling lead me to this thread. Full power disconnect restored functionality on first try. Hopefully this isn't a sign for a dying network adapter. |
Posted By: Xaltar
Date Posted: 01 Jun 2026 at 4:32am
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That is great to hear. As for it being a sign of anything, I doubt it or the person who shared the fix would likely have posted back here. It's more likely that something in the LAN's firmware got corrupted, a power cycle (full disconnect from mains and power switch pressed and held for a few seconds) would be the only way to clear corrupted values in the LAN's ROM. It could be caused by something as simple as a marginal/faulty cable sending bogus data or even a bit of debris/corrosion on one of the connector's pins. -------------
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