I usually follow Susan Bradley’s DEFCON settings but this time I missed one computer that updated on the 17th November, which has resulted in a loss of Internet connectivity.
It is a Lenovo Desktop model 30A1A005AU (x64) i7-4770 CPU @3.4GHz running Windows 10 (10.0.19042 build 19042).
While the SHARKBAY v0B98401 PRO baseboard has an Ethernet port, I have had to use an Unitek Y-3461 USB3.0 Gigabit Ethernet Adapter dongle to connect to the Internet since I acquired the machine. From the System info, I have deduced that the onboard Ethernet is Ethernet-3 and the dongle is Ethernet-4. There is no Wi-Fi option for this desktop.
The windows update appears to be the Win10 20H2.
I have gone through the usual routine:
1) restarted the comp with the dongle connected to the ethernet cable – engaged as it has been for the last 5 years
2) restarted the comp connected to the onboard Ethernet port (Eth-3)
3) disabled/enabled the network adaptors for both Eth-3 and Eth-4
4) uninstalled the Win10 20H2 update.
5) restarted the comp with each change in parameters
However, I seem to be going around in circles.
My Router IP address is 192.168.0.1. However, the IP address for the dongle (Eth-4) is 169.254.168.184 under IP4.
When I change the IP address for Eth-4 to 192.168.0.54 (as an example to connect it to the Router) I get a message that tells me “Multiple default gateways are intended to provide redundancy to a single network (such as an intranet or the internet). They will not function properly when the gateways are on two separate disjoint networks (such as the one on your intranet and one on the internet). Do I want to save this configuration?”
Sadly, I can not confirm connectivity using my laptop as it is connected by WiFi using a Google Network Extender. The IPv4 Address for my laptop is 192.168.86.71.
Both the Ethernet cable for the Desktop and the Google Network Extender are connected to the Router using a Netgear GS116 16port Gigabit Switch.
The ONLY component that has changed in the Desktop setup is the Windows Update.
I would appreciate any help on how to resolve this puzzling issue!
Thank you!
Megan in Sydney, Australia