Yes you are right it is written in the release note but I think it is not solved.I just did a capture of the UDP traffic after an authentication on the ISE portal and I have "\\" between the domain and the username for UserName= and GuestUserName=  

The problem is still there in 2.7Anyone has found a solution? Thanks

Hi,   I am impacted too with this problem for months. It could be really great to solve this issue, we will then be able to manage also our customer centers.   Sylvain