What should you do if your home broadband stops working? The problem could be one of a number of things, but if you don’t have technical knowledge to thoroughly troubleshoot the problem the following procedures may help.
Firstly turn of you modem, and if you have a wireless router turn that off too. Wait a few seconds and power on the devices. If it was a problem between your router and the service provider equipment then this sometimes helps to reset the problem.
If the problem persists and you have another computer, then try the second computer. If this works then the problem is certainly with the original computer. Check that everything is connected and plugged in. If you are using an Ethernet cable between your PC and the router then make sure both ends are clicked in securely. Sometimes the tabs can be broken, which makes it difficult to provide a secure connection.
I once noticed that my password mysteriously disappeared from the router, so if you have access to the modem/router configuration then check that the username and password are correct as supplied by the ISP. If it is a wireless connection then make sure you are trying to connect to the correct wireless network, as other wireless networks may be available in your area (neighbours). Maybe disable your wireless interface on the PC and then re-enable it.
Check the modem and phoneline. Sometimes nearby electrical devices can affect your modem, try to ensure it is a little distance away from other devices. Are you using a DSL filter, as you should be. Make sure that filters are used on all devices connected to phone outlets.
If you still have problems then unplug your modem/router and use a telephone to check for dialtone. If you have a dialtone then your phone line is working, but that doesn’t mean that you are receiving a DSL signal from the ISP. On most modem/routers when you power on the DSL light will flash and eventually stay on permanently to indicate you have synchronised with the network. But if there is a problem with your username and password then you may not have access to the Internet. After the DSL light has gone steady green check the Internet light, if it is on then it usually indicates that you have a connection to the Internet.
If you have done all this and still have problems then it is usually time to ring your ISP, so keep their number handy. There may be some sort of fault at the exchange and they should know if this is the case.