If you do not know change spectrum Wi-Fi password, then to do it, follow the below steps:-
Step 1: Sign in to Spectrum.net or SpectrumBusiness.net.
Step 2: Go to the settings section of your account.
Step 3: Scroll down to the Sign-In & Security Info section.
Step 4: Select Manage and then update your password info.
Step 5: Select Save.
If you have any issue regarding spectrum Wi-Fi, then you can call on ☎ +1-(269)-(409)-1989 to get support from spectrum Wi-Fi technical person.