How to undo a blanket denyall?

I had someone come over to try and fix problems with my internet and network disconnecting. They did a blanket denyall and then tryed to add my network name through Command Prompt but it wouldn't add mt network name and kept saying something was wrong with the command. They didn't know how to undo the blanket denyall and now i can't connect to my network. I would like to know how to remove the blanket denyall or how to add my network to the allow list. These are the commands that the person typed into the Command Prompt if it helps.

netsh wlan add filter permission=denyall networktype=infrastructure
netsh wlan set blockednetworks display=hide
netsh wlan add filter permission=allow ssid=(type your SSID here) networktype=infrastructure

 

I'm not too familiar with this command but this is what I would try.

netsh wlan set blockednetworks display=show
netsh wlan delete filter permission=denyall ssid=WirelessNetworkName networktype=infrastructure