The following commands will be helpful if you want to hide all the WiFi networks and allow only a particular one.

You need to allow a WiFi network first, so execute the following command to do this:

netsh wlan add filter permission=allow ssid="Wireless Network Name" networktype=infrastructure

To hide all the networks except the allowed network, execute this command:

netsh wlan add filter permission=denyall networktype=infrastructure

If you want to remove the “deny all” filter or you want to remove all the network names from the blocklist, the following command will do the job:

netsh wlan delete filter permission=denyall networktype=infrastructure

In case you have forgotten the wireless network name or you just want to see the blacklist or whitelist, here is the command that you need to use:

netsh wlan show filters

This PowerShell command will run a continuous ping test and output to a text file. Edit IP and file location as needed.

This is useful for evaluating a connection over time unattended.

ping -t x.x.x.x | Foreach{"{0} - {1}" -f (Get-Date),$_} > c:\temp\pingtest.txt

See also RFC 1878.

Guide to sub-class C blocks