Lets see if windows can determine the problem

  1. Click Start, and then click Help and Support.
  2. Under Pick a task, click the link to Use Tools to view your computer information and diagnose problems, and then click Network Diagnostics in the list on the left.
  3. Click Scan your system. The Network Diagnostics tool collects configuration information and performs automated troubleshooting of the network connection.
  4. When the process is complete, look for any items that are marked “FAILED” in red.