Concerning toKaspersky Internet Security 7.0 (all builds)
Once Kaspersky Internet Security 7.0 is installed the following error may occur on your PC:
When you try to open a network drive the following message is displayed: Drive is not available
This is a peculiar feature of the Firewall component from Kaspersky Internet Security 7.0. If a computer of one subnet tries to access another computer with the connected network drive from another subnet, the Firewall component closes/denies access to a computer from another subnet. By default during the installation process the Firewall component when scanning the network creates allowing rules for the subnet to which this computer belongs and gives to this subnet the Local network status. Thus unlimited data exchange among computers with the default settings can be only within one subnet.
To prevent such situation, it is recommended in the product settings add subnetworks with the Local network status within which you need data exchange. You can do it the following way:
Open the main application window
Go to Settings > Firewall
In the right part of the window click the Settings button
In the open window go to the Zones tab
Click the Add button
In the Zone settings window enter a new zone name, subnet mask and address.
Set the option to Local network
Click OK in each window
Minimize the main application window
As an example computer subnet mask 255.255.255.0 with the installed Kaspersky Internet Security 7.0 and computer subnet mask with a connected network drive 255.255.0.0 are used.
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22 
2009 Jun 03 12:47
As an example computer subnet mask 255.255.255.0 with the installed Kaspersky Internet Security 7.0 and computer subnet mask with a connected network drive 255.255.0.0 are used. .gif)
