Friday's Pro14 fixtures saw a trio of easy victories as the Cheetahs, Leinster and Connacht all won by big margins.
Ulster suffered a hammering in Bloemfontein, where wing Anthony Volmink scored three of nine tries for the Cheetahs.
The Dragons believe ex-Gloucester and Worcester Warriors boss Dean Ryan is the right man to turn around their fortunes as sporting director.
Glasgow Warriors celebrated the news that head coach Dave Rennie will stay at the club by securing a famous win over Leinster in Dublin.
After over four years of consecutive away defeats in Pro14, the Dragons claimed a draw at Southern Kings.
Bonus-point wins for Glasgow Warriors and Munster mean the top two in Conference A remain three points apart.
There will be no imminent merger of Welsh regions after it was confirmed all four will stay as they are next season.
Ulster saw out the final 10 minutes with 13 men to inflict a four-try defeat on a beleaguered Dragons side.
Luca Sperandio and Niccolo Cannone scored two tries apiece as Benetton Treviso stretched their unbeaten run to eight games.
Centre Stuart McCloskey celebrated a century of matches for Ulster by dotting down for the only try against the Ospreys.