Hey all, So here's the juice: I've got 4 macs, 3 x MBA and 1 x MBP, all but the MBP are remote and in the field. 1 x MBA are on Yosemite, and the other airs and MBP are El Cap. 1 x MBA on Yosemite and 1 x MBA on El Cap, after installing the network agent and the Endpoint 10 software, setting the licence get corrupted virus databases. The other 2, 1 remote and 1 local do not have this problem. Things I have tried: *Installing agent and software locally (in that order), activating locally, connecting to the server, update - virus db corrupt. *Installing agent locally, deploying Endpoint from server, activating via pushing the key, databases corrupt. *Installing agent and software locally, deploying key from server, databases corrupt. Each time removing everything totally - the other 2 macs have worked perfectly. Now, one of the macs won't activate either via the licence or via pushing the key from the server. Have tcpdump running live on the macs, firewall logging turned on server end, and where possible, home router firewall opened to specific IP address. Traffic shows at appropriate times in the TCPdump & firewall logs. Local installs are being done via me connecting over LogMeIn. I'm at a loss really, Kaspersky's suppliers have basically suggested all the above things. Anyone have any ideas?