sourdoe83 wrote
I recently found out I was feeling more sick than usual in my place and my router is now transmitting a 2.4 GHz AND a 5 GHz wifi signal.
I noticed that at an Airbnb house a few months ago. A search for WiFi devices turned up two different networks with similar names, something like "Linksys 2222" and "Linksys 2222-5G".