The default usernames and passwords for DrayTek devices are:
– Vigor 3300 series Username is “draytek” and default password is “1234”
– VigorTalk ATA preset User Name is blank, and password is “vigortalk”
– Older DrayTek routers are username “admin” and the Password is blank. Newer models are username “admin” and password “admin”

Unfortunately if you’ve changed the default username or password and can’t remember what they were, the only option is to perform a hardware reset. For more information see “How to Reset the Router to Factory Default settings