No network after upgrading graphics card

[Les6234]

I have a ROG STRIX X570-F which has been working well for almost 2 years with a GTX 1660 graphics card.  Never had any problems with the network port all that time.

Today I upgraded to a RTX 4070 and on restarting I found I have no network connection.  I have not been able to get networking back up, after updating the driver for the graphics card and checking BIOS settings.  

Could this new PCIe card be interfering with the onboard network device?  Are there any BIOS settings I need to change?

[Les6234]

Update: Pulled out the RTX and put my GTX back in, still get no network device.  The device in Device Manager says:

Currently, this hardware device is not connected to the computer. (Code 45)
To fix this problem, reconnect this hardware device to the computer.

Have I broken something on the motherboard?  Could this be caused by BIOS or Windows drivers?

[Jiaszzz_ROG]

Hello, @Les6234 

May I inquire about your current BIOS version? Have you tried confirming the issue after clearing the CMOS?
Please first attempt troubleshooting based on the settings outlined in the [Motherboard] How to fix the cable network problems of Motherboard – Troubleshooting guide.
If there is an inoperable part of the process, please let me know which it is.

Thank you.

[Les6234]

I have swapped the network cable between this PC and another one beside it, both cables work on the other PC, and there is normal access to the internet on other devices.

When I plug the cable in there is an orange light on the socket.  The device does not have an exclamation mark in Device Manager, but the device status says:  Currently, this hardware device is not connected to the computer. (Code 45)

I cannot see any obvious BIOS settings which would enable/disable the network device so I don't know why it would be disconnected.

Internet connection settings and troubleshooting tools in Windows do not work as the ethernet port is not recognized as an attached device.

BIOS is 4602.  Will try clearing CMOS later today.

[Jiaszzz_ROG]

Hello, @Les6234 

Thank you for the response.
In addition to suggesting you try clearing the CMOS, if you have an extra SSD available, we recommend installing the system on that SSD or performing a fresh OS reinstall to eliminate the possibility of a system-related issue causing this problem.

Please also check the router's settings to confirm that this issue is not caused by any network abnormalities.

Thank you.