No you can't completely hide. Spoofing your Mac address helps in not revealing your device but still it will show up as a device at the network's end. Spoofing a Mac address on a laptop is easy but for mobile phones you need to root it. XDA develo

Is It Beneficial to Disable SSID Broadcasting? May 09, 2020 Debunking Myths: Is Hiding Your Wireless SSID Really More Jul 11, 2017 How to hide my phone from showing that it is connected to It sounds to me like you had it coming if you’re going or got disconnected. You cannot prevent a device from being hidden from the network especially if you want constant connection. You can, however, mask it so it looks like a name the admin won’ How to hide/mask computer from wireless network - TechRepublic

How to hide your NETGEAR wireless router SSID network name

"Hidden Network" Coming From My Router - Verizon Fios

Nov 08, 2018

How To Hide Your Wifi Network/Signal From Others (Works on Nov 25, 2017 How to hide WIFI network name | D-link DSL-224? Keep in your mind that resseting router to its default settings will erase all configuration on it and you have to configure/ Setup the router DSL-224 for internet connection from beginning>> How to Setup Dlink DSL-224 wireless router. Step 2: Hide your WIFI network. 1- Click on Advanced, From left-hand side Advanced Wireless.