Bradje1, To start, the fields on the right side of your screenshot will NOT be accessible until after Leader is selected and the Group Name entered, then select apply. If it isn't allowing that then based on the screenshot, you haven't completely disbanded the previous Chassis Group. I can determine this by the fact the Username and password are populated, which would only occur from a previous membership. When there isn't a configuration present, it will be blank and grayed out. Once Leader is selected and the Group Name entered, you would select Apply and then those fields are accessible. Now to disband a chassis group from the lead chassis you do the following:  The lead chassis then communicates to all the members that they have been removed from the group. Finally the lead chassis discontinues its role. It can now be assigned as a member or a leader of another group. Now if this member chassis didn't receive the message, due to a network issue or being removed. Then you will need to disable the member from the member chassis to complete the removal. After that then you should be able to proceed.. Let me know if this helps resolve the issue.
Hi, I needed to remove a Group Admin setup on a Lead Chassis (this worked OK). I removed servers 002-009 from Lead Chassis 001. I then needed to select a former member of that group (002) as the new Lead Chassis. But it will not allow me to type in any of the fields. See pic. We are at version 5.01 for the chassis firmware. Any ideas around this? Thx, John Bradshaw [IMAGE] 
M1000e Group Administration