In some situations when using a GSM or CDMA modem, the Home Station computer may be connected to a network, which is protected by firewalls. In these instances the static IP address may be connected into a router, which splits the Internet connection between all networked computers. Under these circumstances, you may require the assistance of your IT department with the installation and network configuration aspects.
If your Home Station computer is connected in a network, you may need to allow for “port forwarding” on the router so that communication can pass through.
If the static IP is first connected to a router, the router must be accessed to allow for “port forwarding” at port number: 49152. (Port #49200 is recommended for PCs using Windows 7, and #49800 is recommended for PCs using Windows 8). This function is largely available on most makes and models of commercial routers.
Port 49152 is the default port, you may have selected a different port when programming your STS site.
In the event that your network has strict firewalls, the security software may need to be accessed to allow for STS communication permissions. You may also have to set port rules and change firewall settings ony our PC.