Configuring The Grandstream to function with a Belkin Router
From PhonePower Knowledge Base
To configure the Grandstream to function with a Belkin router, please follow the following steps.
First, connect an Ethernet cable from the LAN port on the Grandstream to your computer.
Turn off the Belkin router.
Open up a web browser and navigate to http://192.168.2.1 and log into the Grandstream.
The password is 123.
Once logged in go to Basic Settings and look for an option called LAN DHCP Base IP.
Change the LAN DHCP Base IP from 192.168.2.1 to 192.168.3.1.
Scroll to the bottom of the page and click Update.
On the next page click on Reboot.
Power the Belkin on and give it a minute to get initialized.
The internet should be working once the devices are all on.