You can find it on the sticker on the back of the HT2000W modem. You can also find it by going to the System Control Center with a LAN connected device, clicking on WiFi Settings, and using "admin", without the quotes, as the password to get in to the WiFi settings. The Network Security Key will be listed as "Password" in the WiFi settings.
Ryzen 5 3400G | MSI B450M Pro-M2 MAX | 16GB Corsair Vengeance DDR4 3000 | XPG SX8200 Pro 512GB NVMe | Windows 10 Pro
