Device Manager screen freezes bc of so many unnamed devices, how can I delete all those unnamed and make sure it doesn't happen again?

[Niccolo91]

It's won't let me delete, I don't know if it's neighbors seeing my wifi or something? Very annoying and it wasn't like this last time I checked 6 months ago.

[Netduma Fraser]

Click the menu  icon on the Network Map panel and click delete all offline devices. Then to help with the issue happening again set static/reserved IP addresses for your devices in LAN Settings.

[Niccolo91]

Thank you I deleted them all but still can't find set static/reserved IP addresses in LAN settings unless you mean I have to do that for every individual device?

[Netduma Fraser]

Yes you would need to do so for each device ideally.