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 slot
<failed_slot_number> followed by reboot slot
<failed_slot_number> 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:
- For universal platforms,
licenses can be uninstalled or revoked using the following
command:
uninstall
license [{file} | {product}] {filename} | {productname}] [{withhold} | {revoke}]
Select revoke.
- 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.
If an Extreme Platform ONE license is applied to the stack, compatible licenses are not required.