Sling Media Slingbox User Manual page 76

Multiple routers in your home
With the growth of wireless networks and combination network devices, some home networks have become overly complex with the use of multiple routers when
just one can do the trick. If you have multiple routers in your home the ports must be open along the path. It is possible you have multiple routers in the home, even if
you don't think you own more than one. How is this possible?
• Some DSL/Cable modems have built-in router functionality. For example: DSL modems made by 2Wire, as well as select models by Westell and SpeedStream
often have built-in router functionality.
• If you have a Voice-over-IP (VoIP) server in your home, it may also act as a router. In this case, the VoIP server is actually your primary router.
In a multiple router home where the Slingbox is connected to a secondary router, as shown below, you need to open a port on both routers to watch your Slingbox
remotely. It is strongly recommended that you connect your Slingbox to the primary router in your home, as shown.
Solution: Follow these instructions if you connected the Slingbox to your secondary router.
1. Complete the standard port forwarding setup for your Slingbox and your secondary router (the secondary router is the one connected to your Slingbox; the pri-
mary router is the one between your secondary router and the Internet, as shown below).
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This is the easiest and most reliable configuration for setting up your Slingbox for remote viewing.
Slingbox User Guide