Useful For Non-Technical Computer Users Too
Routers whether wired or wireless, have certain setup procedures. These procedures control important functions that include who, can access your network, when, for what type of applications etc. To do this, the router needs to be connected to a computer, the computer then accesses the router set up interface and allows the user to configure various parameters. Let us call the computer to which the router is connected (for configuration purposes) as, COMP-A. The user sitting on COMP-A would access the router set up screen through a web browser, enter the required password, make the set up changes and then save the configuration.
It does not matter whether COMP-A is connected or not connected to the Internet during the configuration process. However, technically it is possible to allow any computer connected to the Internet to access the router through a web browser. This is a process that is referred to as 'Remote Management' and most technically minded users would be aware of this. But what we need to do is take care of those users who install a router and are not very technically savvy.
If you do not understand the meaning and implications of remote management of your router, disable the feature. You will still be able to configure your router through the computer to which it is physically connected and that is good enough. Allowing remote computers to access your router through the Internet requires a few important precautions to be taken. You will need to restrict the access to a specific IP address or a group of IP addresses. It is always advisable to change the password required to access the router to something that is different from the 'default' password, this is always a good thing to do.
Enabling the remote management function for your router, could allow others to access your router and reset important parameters that relate to the security of your network. So if you are not sure about how to do a proper control when remote management is open, you can either take the services of a professional or disable the router remote management function.