The James Paget Hospital in Norfolk has received its third official warning about the standard of care within the last year.
The Care Quality Commission's raised concerns about how well the trust was assessing the needs of patients.
The CQC also said the trust wasn't doing enough to make sure patients are receiving appropriate treatment. The James Paget has until the end of May to improve.
Cathryn Barmham, from the Care Quality Commission, said: "There are a number of actions we can take in respect of enforcement but the trust are making improvements and they are realising the significance of the concerns they have and as you are aware there have been personnel changed recently."
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It's going to feel fresher today although generally dry with sunny spells- just the chance of an isolated shower. Highs of 22 deg C.
Lifeguards at Sea Palling where a swimmer died after getting caught in a rip-current, remind people to always swim at life-guarded beaches.
It will become cloudy this evening with a chance of showers arriving from the west. Lows of 15 deg C.