Cannot get my Samsung SyncMaster S27B370 to connect to my Mid 2011 iMac 27

Cannot get my Samsung SyncMaster S27B370 to connect to my Mid 2011 iMac 27 inch with HDMI to thunderbolt port adapter but works like a charm in Windows 7 when I bootcamp over to it. Any ideas? The cable is working properly as shown by the fact that Windows 7 uses both monitors perfectly. I am using Mac OS X Mountain Lion and have already done the option + cmd + p + r boot reset to no avail. It does not find the second monitor at all as in it doesn't even show up in the display preference pane.

birdmanjay wrote:
... Apple tells me it is the printer mfr issue and printer companies tell me it is apple issue.
Arguably, they're both right.
Changing your router changes everything, so your best course of action is to research the respective printer's documentation and determine how to reset them to factory default condition. Then, add them again using System Preferences > Print & Scan.
For that, I recommend you first "reset the printing system" according to these instructions: Mac OS X: How to reset the printing system. Its instructions for Lion are identical to those for Mountain Lion.
As the article states, it will remove all your existing printers, leaving the Mac's printing system in a similar "factory default" condition ready for you to create a new print queue for each printer, which you should probably do.
Apple's printing support documents contain a great deal of redundancy, but this one may be a good place to start: OS X Mountain Lion: Set up a printer to print wirelessly

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