So far I've identified issues caused by the following:
The error you may get is "\\OMV is not accessible. You might not have permission to use this network resource. Contact the administrator of this server to find out if you have access permissions. A specified logon session does not exist. It may already have been terminated"
Both of them contain an SMBv1 Fix in KB 3185879, which I think might be what's causing the problem.
So far, I've uninstalled those KB's to fix the issue, however there may be another fix - I haven't had too much time to peak around.