Lan device (Realtek ethernet controller) keeps disappearing

[Daanw]

Hello,

have my new laptop for a couple weeks, never used the LAN port, until today.
want to do some network configurations at home.
But when plugged RJ45 cable into laptop (wifi off) no connection!
I tried following:
- windows network troubleshooter
- sfc & dism
- remove driver with Revo software, restart, then fresh instal, Realtek gigabit controller appears!

then after one hour or so, opening the control panel - network and internet - network connection adapters:
in front of me, after couple seconds Realtek controller disappears!
i have never seen this...

Can someone help me on this one?

 

[SpyderTracks]

Hello,

have my new laptop for a couple weeks, never used the LAN port, until today.
want to do some network configurations at home.
But when plugged RJ45 cable into laptop (wifi off) no connection!
I tried following:
- windows network troubleshooter
- sfc & dism
- remove driver with Revo software, restart, then fresh instal, Realtek gigabit controller appears!

then after one hour or so, opening the control panel - network and internet - network connection adapters:
in front of me, after couple seconds Realtek controller disappears!
i have never seen this...

Can someone help me on this one?

Is this a pcspecialist system? Can you post your full specs from the order page?

 

[TonyCarter]

Do you have a VPN installed, and is it blocking your connection, or have you configured it to specifically allow that port through it?

 

[Daanw]

I have added specs in the signature, hope it gives u enough info, else let me know
I have installed VPN services, but left it complete on default settings (using it for almost 5 years now). This is first laptop/pc in my carreer facing this problem.

 

[SpyderTracks]

I have added specs in the signature, hope it gives u enough info, else let me know
I have installed VPN services, but left it complete on default settings (using it for almost 5 years now). This is first laptop/pc in my carreer facing this problem.

If you could paste the full specs from the order page please?

 

[Daanw]

Showing Order Reference 2677686
Chassis & Display	Recoil-serie: 17" mat QHD 240 Hz sRGB 100% led-breedbeeldscherm (2560 x 1600)
Processor (CPU)	Intel® Core™ i9 24 core-processor 13900HX (5,4 GHz Turbo)
Memory (RAM)	64 GB Corsair 4800 MHz SODIMM DDR5 (2 x 32 GB)
Graphics Card	NVIDIA® GeForce® RTX 4060 - 8.0GB GDDR6 Video RAM - DirectX® 12.1
1st M.2 SSD Drive	1 TB SAMSUNG 990 PRO M.2, PCIe 4.0 NVMe (maximaal 7450 MB/R, 6900 MB/W)
Memory Card Reader	Geïntegreerde SD-geheugenkaartlezer
AC Adaptor	1x 280W-oplader
Power Cable	1 x stroomkabel van 1,5 meter voor Europa
Battery	Recoil Series geïntegreerde 99WH lithiumionbatterij
Thermal Paste	VLOEIBAAR METAAL PERFORMANCE KOELING
Sound Card	Nahimic van SteelSeries 2-Kanaals HD-Audio
Bluetooth & Wireless	GIGABIT LAN & DRAADLOOS INTEL® KILLER™ Wi-Fi 6E AX1675i + BT 5.3
USB/Thunderbolt Options	1 x THUNDERBOLT 4-POORT + 3 x USB 3.2-POORTEN
Keyboard Language	RECOIL 17-SERIE VS INTERNATIONAAL TOETSENBORD MET RGB ACHTERGRONDVERLICHTING
Operating System	GEEN BESTURINGSSYSTEEM VEREIST
Operating System Language	Nederland/Nederland - Nederlands
Windows Recovery Media	GEEN HERSTELMEDIA NODIG
Office Software	GRATIS 30 dagen Microsoft 365® op proef (besturingssysteem vereist)
Anti-Virus	GEEN ANTI-VIRUSSOFTWARE
Browser	Microsoft® Edge
Notebook Mouse	GEÏNTEGREERDE TOUCHPAD-MUIS MET 2 KNOPPEN
Webcam	GEÏNTEGREERDE HD-WEBCAM 1MP
Warranty	3 jaar gouden garantie (2 jaar ophalen en retourneren, 2 jaar onderdelen, 3 jaar arbeid)
Delivery	2 DAGEN VERZENDING NAAR NEDERLAND
Build Time	Standaardversie - ongeveer 3 tot 5 werkdagen
Welcome Book	PCSpecialist Welkomstboek - Nederland

 

[SpyderTracks]

Did you clean install your own windows, or are you using the test version that the laptop came with?

So firstly, fully disable your VPN, even on default settings they can often have a Network Lock or Kill switch configured by default

Secondly, do you have the Killer control panel installed? If so, fully uninstall it, it's absolutely dreadful at the best of times.

Then delete the adapter in device manager and reboot on wifi for it to reinstall the correct driver.

Then try connecting the LAN again and disable wifi, see if it's any better.

 

[Daanw]

I added W11 pro key, and updated is to 22H2.
disabled all other network addapters beside wifi, bluetooth and the Realtek gigabit controller.
excluded even vpn software from auto startup.
Then try to delete killer software with Revo software (even twice! installed itself apparently again annoing sh**)
downloaded driver from internet and installed fresh, again it appeard some time. Tried to update via device manager, but get notice "device is up to date".
after some time controller disapears again...

get this notice from Windows Event Manager:
Device PCI\VEN_10EC&DEV_8125&SUBSYS_12741D05&REV_05\01000000684CE00000 had a problem starting.

Driver Name: oem51.inf
Class Guid: {4d36e972-e325-11ce-bfc1-08002be10318}
Service: rt25cx21
Lower Filters:
Upper Filters:
Problem: 0x0

 

[SpyderTracks]

I added W11 pro key, and updated is to 22H2.
disabled all other network addapters beside wifi, bluetooth and the Realtek gigabit controller.
excluded even vpn software from auto startup.
Then try to delete killer software with Revo software (even twice! installed itself apparently again annoing sh**)
downloaded driver from internet and installed fresh, again it appeard some time. Tried to update via device manager, but get notice "device is up to date".
after some time controller disapears again...

get this notice from Windows Event Manager:
Device PCI\VEN_10EC&DEV_8125&SUBSYS_12741D05&REV_05\01000000684CE00000 had a problem starting.

Driver Name: oem51.inf
Class Guid: {4d36e972-e325-11ce-bfc1-08002be10318}
Service: rt25cx21
Lower Filters:
Upper Filters:
Problem: 0x0

You'd need to clean install your own windows from scratch, the test windows version isn't configured properly.

Leave out the killer software entirely and don't install any AV, just normal drivers through windows optional updates, and graphics driver from Nvidia. And don't install your VPN just for testing.

Don't install any other software and test the LAN connection.

 

[Daanw]

Are u kidding?! If i go to Windows properties it says W11 pro, version 22H2 etc...
Where can i see its still a test version?
Cant pc specialist mention this with use instructions -_-

But still thanks for advise
I am going to re-install soon, let u know

 

[SpyderTracks]

Are u kidding?! If i go to Windows properties it says W11 pro, version 22H2 etc...
Where can i see its still a test version?
Cant pc specialist mention this with use instructions -_-

But still thanks for advise
I am going to re-install soon, let u know

I'm not going to try to sway you, but it's not configured properly, it's up to you how you proceed. But it's not worth my time troubleshooting on an unstable platform.

You ordered without windows, you can't use the test windows and have a stable system. Just doesn't work that way.

Part of the cost of ordering with windows is the installation and configuration, they're not just gonna do that for free for you.

 

[ubuysa]

Are u kidding?! If i go to Windows properties it says W11 pro, version 22H2 etc...
Where can i see its still a test version?
Cant pc specialist mention this with use instructions -_-

But still thanks for advise
I am going to re-install soon, let u know

When you buy a laptop without an operating system then you MUST expect to install your own OS. Why would you trust an OS that you happen to find lying around on the drive? Just because it looks like Windows doesn't mean it's a fully-fledged and configured system. Many (most?) people who activate the testing system that PCS put on there to stress test it, end up having issues.

 

[Daanw]

I had now idea of this (no mention of pc specialist like: Test windows installed, u must instal own operating system) or something similar...
SOLVED: Just installed new OS, LAN port is working just fine!
Thanks all for the help!

 

[ubuysa]

PCS claim that their test OS is fully functional, but the experience of a great many users just like you shows that this is just not true.