I have a home network with a PC hard wired and a laptop connecting via wi-fi to a DLink DIR-655 router. I've recently started to have problems where most websites (not all) stop working on both machines with Chrome saying it cannot resolve DNS.
I've tried to power down/power up the router, reboot the router, updating firmware, and reset to factory setting but it does not seem to help. I can achieve connectivity again if I hard wire my PC directly into the modem provided by my ISP and bypassing my router completely. When doing this, Windows reports that connectivity is limited, but the "Troubleshoot problems" option usually fixes this for me.
As long as I'm wired directly to the modem I never have any issues. I usually revert back to the router as needed because of wi-fi, but it's happening more and more frequently and I'm not sure how to troubleshoot further. My next step is to buy a new router but my current one is only a year old so I'd like to figure out the issue if possible.