We have the same exact problem upgrading from 3.0 to 3.1. But this cluster is in production. I've enabled IPv6 but it didn't help.All 4 nodes except 1 of 2 PSN's works now. I'm not going to use Upgrade via GUI again. Had to do upgrade manually for 2 ...
Not possible to do that, atleast not with Gen1 and DNA Center v2.2.x."One interface must be specified as cluster link".Same if I check the Cluster Link checkbox. This is so annoying. We will not use Cluster Link in our PoC-setup.
Excellent explanation. This information isn't available in Cisco manuals or in the course material I have read.Thank you! I'm seeing this on our 5 GHz network where a neighbour has put up a very strong "home office" 802.11ax access point + clients us...
