Thank you for the advice. So far the problem has disappeared on its own after running discovery couple of times.
If you are incountering this problem, then you should follow the gideline. The link is available below, through which you can explore all the related infromation of the product.
I am having issues with some printers not reporting corrrectly in Centreware web. Their status is Non-compliant, so I wonder what would cause that status. I checked SNMP settings, it is all in default, compared it with other device that is exact same model and I cannot find a solution.
The models are 3345, versalink B7030.