It started to lockup more and more often so I changed it. All better. Did you try another router? They don't last that long.
Bob
I changed my isp last Thursday from cable to fiber optic & now my HP laptop will not connect to my wifi. It worked while the installation guy was here, but soon after started disconnecting & now will not connect at all. I have two smart tvs streaming netflix along with two smart phones using the wifi just fine! Using my router a DLink Dir 655. Running Widows 7 professional. The new isp says its a software issue on the laptop & not their problem! This never happened during the approx. 3 years with the cable isp. Installation guy did not reconfigure my router settings.

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