hardwired works, wifi has problems. Hmm....
Check internet settings, especially security settings, in windows, since that affects all browsers.
make sure your router is assigning the same DHCP as seen in your computer when on wifi. Run ipconfig in a command box to see what the computer claims as IP assigned, then check the browser program in the router to be sure it also matches.
Check the wifi broadcast strength, it might be set too low. Also consider the wifi part of the router device has burned it's antenna or some associated part with it, so hardwired works, but wifi won't. You can check that by using another router.
In Firefox you can go to about:config and set a longer wait time for pages to load. put timeout in the search, look for http settings.
I am having an issue with several different websites loading fully or partially, and then an error page saying "connection was reset" being thrown. In addition, I have issues playing media content, such as Youtube videos, as the page loads for an eternity. Some details:
Browsers: Firefox/Chrome - Switching doesn't solve this
Router: D-Link Wireless N Model DIR 601
Further details: Ive tried resetting my machine, doing a factory reset on my router, switching the DNS to Google's public DNS server, clearing my cache/temporary files, and disabling my anti-virus software. The ONLY solution I've found is to hardwire my machine to the router. I'm sure this points to my PC wireless internet settings in some way, but I don't know what I should mess with specifically.