All devices are on at least 2.6 and many ePMP APs are showing the invald cookie option along with the SMs connected to them. I also have an SM that shows invalid cookie when the AP it is connected to actually does not have this issue. The invalid cookie is showing devices in a down status in cnMaestro which makes the tool unusable.
Here are the effected MACs
[EDIT]DELETED. Mac addresses sent offline to Ajay.
We didn't realize that email address wasn't mentioned in earlier reply to provide the MAC address details. We have taken note of all these MAC addresses, so please delete them immediately from your post as these are sensitive information.
We analysed this issue and it is nothing to do with ePMP devices being upgraded to 2.6.1 and for that matter, this issue is not related to any device related activities. This issue happened due to some internal error inside cnMaestro. Anyways we have addressed the issue and there is nothing to be concerned about. All devices earlier showing as invalid cookie should be connecting back and should function as usual in cnMaestro. In case anybody still sees device showing invalid cookie, please email MAC address of such devices to email@example.com.