An attempt was made to access a socket in a way forbidden by its access permissions ($271D/10013) [$2B27/11047].
This gives some in-depth information http://support.microsoft.com/kb/956188/
If maxuserport is not set in the registry then Windows allocates ephemeral ports from the range 49152 to 65535. However if maxuserport is set, then ephemeral ports are allocated from 1024 to maxuserport. In our experience when customers have had this problem maxuserport has been set to a value higher than 16000.
The MaxUserPort registry entry is in the following subkey in the registry:
If you are using software that requires the MaxUserPort registry setting, then you will need to change it to be less than 15500 however our experience has yet to identify any software where the MaxUserPort setting is mandatory and in most cases the registry subkey (just the MaxUserPort part) can simply be removed.
On Windows Server machines, once you have deleted or modified the MaxUserPort entry you will need to restart your DNS Server service (DNS.exe) which is done from the Services console, under Administrative Tools. If in doubt, rebooting the machine will do this
NOTE: Editing your registry entries could result in permanently disabling your operating system. Before editing the registry you should first backup the registry files. Please see http://support.microsoft.com/kb/322756/en-us