Verizon Fios-G1500 User Manual page 152

NETWORK
SETTINGS
When enabled, this functionality verifies the validity of all UPnP
services and rules every five minutes. Old and unused UPnP defined
services are removed, unless a user-defined rule depends on it.
UPnP services are not deleted when disconnecting a computer
without proper shutdown of the UPnP applications, such as
messenger. Services may often not be deleted and eventually this
leads to the exhaustion of rules and services, and no new services
can be define. The cleanup feature locates the invalid services and
removes them, preventing services exhaustion.
To access this setting:
Select Universal Plug and Play in the Advanced page.
1.
To enable UPnP and allow UPnP services to be defined on
2.
any network hosts, select the UPnP Enabled check box.
To enable automatic cleanup of invalid rules, select Enable
3.
Automatic Cleanup of Old Unused UPnP Services check
box.
Click Apply to save changes.
4.