Cannot share files with CIS running
This was a tricky problem to track down but easy to fix. The settings for the local network get set to the wrong location and the permissions tied in with the zone are set wrong, so to fix this you must reset the zone CIS thinks you are in. The following links show you how to basically reset your network sone.
help.comodo.com/topic-72-1-451-4733-manage-network-connectio...
All current network connections on a per-application basis can be viewed from Manage Network interface. Learn more on Manage Network Connections.
help.comodo.com/topic-72-1-451-4884-Network-Zones.html
Comodo Firewall allows you to define Network Zones and to specify the access privileges of these zones. Network Zone can consist of an individual machine or of multiple network machines to which access can be granted or denied.