Cannot use Dashboard or any features

I cannot get past the first layer of any dashboard feature maximum, and sometimes can’t even get my home page open. I get the following errors across multiple IPs (Google Chrome/Safari/IE10/Mozilla and on two different computers:

This web page is not available
The connection to server.net was interrupted.
Here are some suggestions:
Reload this web page later.
Check your Internet connection. Reboot any routers, modems or other network devices that you may be using.
Add Google Chrome as a permitted programme in your firewall or antivirus software’s settings. If it is already a permitted programme, try deleting it from the list of permitted programmes and adding it again.
If you use a proxy server, check your proxy settings or contact your network administrator to make sure the proxy server is working. If you don’t believe you should be using a proxy server, adjust your proxy settings: Go to the Chrome menu > Settings > + Show advanced settings > Change proxy settings… > LAN Settings and deselect the “Use a proxy server for your LAN” checkbox.
Error 101 (net::ERR_CONNECTION_RESET): The connection was reset.

I was able to uninstall some widget and SEO files on the GoDaddy FTP site, my hosting provider says they’re fine, my Internet provider says they’re fine. The most I get that’s not an error reading is a blank page on any Dashboard tab I click on, and refreshing the screen does not fix it. HELP! I cannot work on anything!