I thoroughly checked my entire system all that was left was hughesnet. My hughenet system showed DNS acceleration errors. So I contacted Hughesnet they told me that they were aware of the problem and that it should be fixed soon. My system is now back up and running.
Can you access your system control 192.168.0.1?
I meant diagnostics through the system control I have a older system someone else may be able to help you. I click on my little wizard and then click on Diagnostics and then Hourly. I don't know what you need to do for the HT1100 system.
Also when I ran the windows diagnostic mine said DNS server not found. So we are having different problems. I wish you luck in fixing it. Have a nice day.