Hello, just got an Ender 3 V3 Plus, everything else is working fine, but the network tab is not there as it’s to be expected.
Hello @Mizaki_Takarashi 
Welcome to the Creality Forum…! 
What firmware version do you have ?
Some firmware versions caused that tab to not show up unfortunately. Yours might have firmware version 1.2.3.90 which I think caused the problem.
If the next two steps don’t help download through the link I showed you and use version 1.2.3.8
First try a power cycle. Unplug the printer for about 30 seconds and then restart it again.
Next try a factory reset.
Then download the latest firmware here: Ender-3 V3 Plus Firmware
That was it, thank you, it worked
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