I'm trying to fix an issue someone's computer is having. I do what's probably considered lower level internet troubleshooting, computer building and repair in my community. This one has me stumped though. The internet works fine after they restart the computer, for an hour or two, then IE and Mozilla will quit. Chrome will continue working. All of the browsers are set to automatically detect settings, manual proxy or anything. The router is an arris tm502 G. The battery light on the front is not lit up; the power light is on.
I tried running CMD and pinging google, then pinging 220.127.116.11, both got four replies so I'm not sure if it's a browser issue, a router issue (the router is old), or if it's something else completely. I dont have the computer model handy as it's at their house, but it's an all-in-one with wireless capability; the router is not wireless. I went to the router's IP and was not able to make any changes, but on the status page, it listed today's date and an Event listed that the battery was missing. As I stated, the router still worked regardless, for a little while. I left their house with the computer in Safe Mode with Networking, and he called (pretty upset) saying that the internet had failed again.
Finally, the other complaint they had was that the internet quit when the computer came out of sleep mode, so I set the hard drive to go to sleep after a few hours instead of 20 min. It lasted about 45 min. until the internet went out again. I'm going back tomorrow to see what I can do, but I would love a little help as this is pretty much the extent of my knowledge.
Any help is greatly appreciated as I'm lost at this point.
I'm a new member here, please be gentle.
Thanks in advance everyone.