The Dons have now slipped six points off the pace following back-to-back defeats, with Saturday's 2-0 loss against Northampton bringing an end to their 100 per cent home record.
"All we can do is roll our sleeves up now," said Ardley.
"I was used to doing that last season and I have told the players that we have to recover and go again.
"We have so far bounced back well from defeats and this is the first time we have had two defeats on the trot.
"It is probably the first really bad performance since Exeter away and that was eight games ago. It was not good enough, but I am certainly not going to press the panic button."