Make sure that you plug the broadband modems to the correct port on your wireless router. For the initial setup of your wireless cable, use an Ethernet cable. For this particular purpose, there are vendors that supply these cables for free. See to it that your broadband router is installed in a good location. This means that you have to place them in central locations as much as possible so that it will have a bigger coverage.
During the setup, it is possible for your wireless router to freeze or malfunction. When this happens, you have to reboot if not reset the router so that the non-essential temporary data will be flushed out which can help in resolving the issue. It is 3g wifi router sim card important to have firewall in order for you to secure the network. If you do not want others to connect to you, you can block it. It could also be a great help from hackers who want to hack to your files or make spy.
If possible, you can enable the WPA2 security on your WiFi devices. Check also that the WiFi passphrases or security keys are matched exactly so that you can start using your wireless router without any hassle at the soonest time possible. Keep these things in mind and enjoy browsing.