Carlisle were brought down to earth after two successive away wins by a resolute Bristol Rovers.
Although the Cumbrians had the better of the chances in a scrappy match Rovers came closest to scoring when they were awarded a controversial penalty two minutes before the interval.
Defender Stuart Whitehead was penalised for shirt pulling but Paul Tait pulled his spot-kick miserably wide of the post.
Rovers, still searching for their first victory of the season, defended with great commitment and were well served by the central defensive partnership of skipper Adam Barrett and Anwar Uddin.
Carlisle attracted another decent crowd of 6,475 following their take over by Irish Millionaire John Courtenay.
They were rarely able to find any attacking fluency in a match with too many stoppages.
It took 20 minutes for Carlisle midfielder John Burns to produce the first shot of any note, but it was easily saved by Scott Howie.
At the other end Barrett should have done better than head tamely wide when he was given room from Wayne Carlisle's corner.
Carlisle's Irish striker Trevor Molloy, who carried their greatest threat, volleyed over from a great position on the half hour.
After the interval the Cumbrians pushed hard for a winner with Brendan McGill delaying too long after being put clear by Molloy and Ritchie Foran volleying over.
Rovers were dangerous on the break and Giuliano Grazioli turned well in the box before shooting wide of Peter Keen's right-hand post.
In an eventful finish Keen saved well from Uddin's shot before Carlisle substitute Brian Wake almost snatched the three points near the end when he just failed to connect with Molloy's cross