A stack might have a failed node even though the show licenses command shows that
                all nodes are running the same license and/or feature packs.
            To fix a license mismatch, do the following:
        
        - 
                At the master node's console, enter show slot
                        slot_number repeatedly until you find the
                    slot node that is failing.
                
                     Note    When you are creating a stack, a blinking orange
                        MGMT light usually indicates a license mismatch on a master-capable standby
                        node. 
 
- 
                Enter unconfigure stacking at the
                    master node to unconfigure the stack.
            
- 
                After making a connection to the failed switch's slot, update the license
                    information for that node:
                
                    - 
                        Run clear license [{software} | port-speed] command without the software or
                                port-speed keywords.
                        
                    
- 
                        Enter reboot
                    
- 
                        Obtain the correct license information for
                            the failed switch, then enter # enable license license_key (where license_key has the
                            format xxxx-xxxx-xxxx-xxxx-xxxx)
                        
                    
 
- 
                Enter show stacking
                    and enable stacking to
                    re-enable the stack.
                
                     Note    Only those switches that are master-capable require compatible licenses be
                        installed.