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This is regarding service request number 7214246. 
 
I have tested your scenario in our local lab and tested. where also I was getting same error.  
Which means you can not bind multiple IPs on single MAC which you can called behavior.   
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XG Firewall: cannot obtain DHCP lease 
  
						
						
						
	
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If you don't like something, change it. 
If you can't change it, change your attitude. 
Don't complain!
  
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