If the default passwords fail, it is likely that the credentials were changed during the initial setup. To restore the factory defaults, you will need to perform a hardware reset:
Hipcam is a popular OEM manufacturer for many budget IP cameras, baby monitors, and network video recorders. Their “RealServer” is the software component (often running on port 8554 or 34567) that streams video. Unfortunately, a well-documented default credential set has become a major vulnerability. hipcam realserver/v1.0 default password