Windows 10: realtek gaming 2.5gbe family controller capped at 100mbps

For some reason, my internet is capped at 100 Mbps. I have tested connecting directly to the ISP cable and then I get full speeds and even the display shows 1.0gbps. I have also tested using multiple cables both cat5e and cat6. same result on both. I have tested my router for fault but it gives me full speed when connecting via LAN to my other device which is a Sony Vaio S series that too I bought in 2010. So I realized the fault is most likely with the Realtek gaming 2.5gbe family controller. I have made sure all the drivers are updated. I tried troubleshooting and maybe found the cause. I

:)

 

RealTek PCIe GBE Family Controller not working

I searched for "Realtek pcie GBE controller" in the search box on this site and found this -

http://answers.microsoft.com/en-us/...-75c8-43ce-a082-b80a19a8f417?page=2#LastReply

I tried the last suggestion and it worked for me.

 

Windows is updating my Realtek - LAN - Realtek PCIe GBE Family Controller driver everyday to the same version

Hi,

There are several factors that can trigger a certain driver on your computer to update from time to time with the same version. One of these is due to system file corruption. For us to effectively assist you in rectifying the unusual activity of the Realtek
PCIe GBE Family Controller driver, we'd like to know these details:

• Did the issue happen right after you installed the Creators update? If yes, may we know how you acquired or installed the update?
  
• Is this behavior confined to the Realtek Family Controller driver only?
• What steps have you done so far to resolve the concern?

Your reply is highly appreciated.

 

realtek PCIe GBE Family Controller

In control panel, hardware and sound, pc, it is showing the troubleshoot warning triangle. Right clck and select troubleshoot and it tells me

"Problem detected with Realtek PCIe GBE Family Controller.

I have checked in 'advanced' etc, the driver is listed as Microsoft 10/05/2013, 8.1.510.2013 which is says is up-to-date.

Is there really a problem and if so what do I need to do?

Moved from: (Windows / Windows 10 / Windows settings)