If you are using Verizon Wireless Broadband Access you may run into this problem some time. After you disconnect from wireless broadband and try to use LAN access or wireless network at home or work, internet explorer refuses to connect to any URL. But if you use any other browser like FireFox or Chrome, you can connect to internet. From what I have seen, VZAccess Manager adds an entry in Internet Explorer's connections options for Broadband Access. And modifies other settings in there so that Internet Explorer can only connect when you are connected to wireless broadband. To fix this problem, following the following steps.
Following image shows how Connections tag entries may look like before fixing it.