You can validate your DN String with the MISO CertTool, which you can access here: https://cce.midwestiso.org:8443/certtool/
 
If you continue to have trouble, please contact the MISO IT Operations Center by calling 1-866-296-6476, option 1
 
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					Keywords: DN, DN String, Validate, Certificate, Portal, Registration
				
				
			
		
