I have a D-Link DIR-615 router, version A1, which I haven't used for around a year. It was working well, except occasionally dropping connection without any reason that I knew. Recently I opened a new Comcast account and tried to start using it again. Initially I could connect to the router via 192.168.0.1 and set up SSID name, security, and so on. Just a few minutes later, i couldn't find it on the network list any more. More worse, I even can't connect to my router via 192.168.0.1 right now, but can only connect to it by wiring. Is there anyone could help me out? Thank you very much. I am in a big hurry.
P.S. I am worried that maybe my router is simply broken. Is there any way to confirm or rule out this possibility. Thanks a lot.