16-06-2019 11:17 PM - edited 16-06-2019 11:18 PM
On your router or your phone?
To both answer is yes, but in the case of your router, keep the original password safe in case you need to reset. (Take a photo and back it up)
17-06-2019 12:24 AM
Which router do you have? For a BrightBox follow Changing Your WiFi Password on a Brightbox .