Recently I have been getting random Server Not Found pages in Firefox (v18.02) on my Windows 8 laptop. Clicking the Try again button on this page takes me to the page I want, but this is annoying.
Update: The fix below turned out to be temporary. I had to open a command prompt and enter ipconfig /flushdns to resolve the issue.
The solution for me was to change the proxy setting in Firefox to Auto-detect proxy settings for this network as follows.
- Click the Firefox button
- Click Options on the drop-down menu and then click Options on the pop-out menu
- Click the Advanced button and then click the Network tab
- Click the Settings button in the Connection section of the window (Configure how Firefox connects to the internet)
- Click the Auto-detect proxy settings for this network radio button and then click OK to exit the menus.
- Restart Firefox.