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**Snowhog** · Jan 26, 2022, 09:48 PM

When you right-click on the WiFi Radar icon in the System Tray and select Configure Network Connections... and click on the secured network under Wi-Fi, what Security do you have set in the Wi-Fi Security tab?

**Don** · Jan 26, 2022, 09:58 PM

Thanks for the fast reply, Snowhog.

Security: WPA/WPA2 Personal
Password: *********************
Store password for this user only (encrypted)

**Snowhog** · Jan 26, 2022, 10:08 PM

This is an old article, but it asks and answers the question of whether MAC Address Filtering is effective. Security Through Obscurity: MAC Address Filtering ( Layer 2 Filtering )

Do you really need to use it?

**claydoh** · Jan 27, 2022, 05:19 AM

Does the laptop also have Ethernet? if so, could you be using that device's (enp0s31f6) MAC as opposed to the WiFi (enp0s31f6) MAC?

**GreyGeek** · Jan 27, 2022, 08:55 PM

I used MAC to tell the DHCP what IP address I want the device to have. My IPv6 tunnel is tied to my Wi-Fi address and I can't have the Wi-Fi just assigning any address willy-nilly. I want my laptop to be 192.168.11.100, so I bind that address to my MAC, knowing that I will get that same IP address every time I boot this machine.

I currently plug my laser printer directly into my laptop. I used to have it connected to the local lan so that my wife could print something too.
To avoid having an IP address assigned first come/first serve, and having to reconfigure the laser every time, I set the DHCP to despense 10 addesses, starting with *.*.*.100 and ending with *.110. Then, I'd use the MAC address to tell the Wi-Fi that I wanted the printer to have the *.99 address, which no one else could be assigned. That way, it didn't matter in what order anyone, or any phone, logged onto the Wi-Fi. The printer always had, *.99, I always have *.100 and everything else between 101 and 110 was assigned first come first serve.

**Don** · Jan 29, 2022, 03:48 PM

Finally got it solved, but it seems odd to me. The last listed "ethernet" address in my original post turns out to be the MAC address of the wireless NIC. I was confused because I'm used to seeing either "MAC address" or "Physical address" to indicate that. It seems the "ethernet" listing reflects a change in Kubuntu. Thanks to all who tried to help. And Snowhog, I take your point about the effectiveness of MAC filtering, but I live way out in the boonies, and I'm very old, and using it makes me feel better. The great thing about placebos is that they have not side effects.

**Snowhog** · Jan 29, 2022, 03:52 PM

Originally posted by Don View Post

And Snowhog, I take your point about the effectiveness of MAC filtering, but I live way out in the boonies, and I'm very old, and using it makes me feel better. The great thing about placebos is that they have not side effects.

Completely understand! I'm not so young either!

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Wi-Fi recognizes connects to some networks, but not all

[SOLVED] Wi-Fi recognizes connects to some networks, but not all

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