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Cannot connect to network (Network Connections empty, troubleshooting worsened it)

This is on a Windows 10 x64 PC:

Initially, I could connect to the network, but unable to ping, then in trying to fix this, I unfortunately followed the advice on this page:
https://windowsreport.com/ping-general-failure-windows-10/

entering into cmd:

netsh int ipv6 isatap set state disabled
netsh int ipv6 6to4 set state disabled
netsh interface teredo set state disable
netsh i i r r
netsh winsock reset

then restarting.

I tried undoing this by:

netsh int ipv6 isatap set state enabled
netsh int ipv6 6to4 set state enabled
netsh interface teredo set state enable

but had no effect.

After this, it both could not ping nor connect to the network, and the start-settings-network connections was empty. In the device manager, there were no errors presented next to any of the network devices. Also, when trying to open the Windows system restore, it was unavailable.

Is there any way to restore the network without drastic measures?