Running an MR42 at home and it randomly disconnected when noboy was home all day. I get home this evening and it's connected but there's no internet. I have unplugged everything, reset and replaced cables but same result. I'm running a Linksys (brand new) router and a Cisco modem. Light on the AP is solid blue and all the lights on the rotuer and modem appear to be lit, except for the internet light. Please help!
A good place to start may be to setup alerts at Network-wide>Alerts so you can get e-mails when it goes on/offline. It could assist in troubleshooting. Other than that there is no real reason it should go offline unless something upstream is going offline.
Light on the AP is solid blue and all the lights on the router and modem appear to be lit, except for the internet light.
I'm not sure which internet light you are referring to, but what you have sounds as if the problem is router / modem related. Is WoL enabled on either the router or the modem? And are either of them running "power-saver" style software, so they sleep when nothing is happening?
I was referring to the light on the modem that indicates Internet functionality is working. I don't believe WOL is enabled but I can't get into the router to confirm because I don't have an internet connection. No additional software is installed and no changes were made to the network prior to this happening
So you can't get tot the Linksys Router's web interface? If so, I would try giving the router a power cycle.
Is your machine getting an IP address ok?
If you have an e4200 Linksys router, it has form as far as its PSM upsetting devices/connectivity is concerned. https://community.linksys.com/t5/Wireless-Routers/Nest-Thermostat-and-Linksys-E4200-and-Power-Save-F...
In the past I have used them as both routers and bridges without issue, but the sites have been small and busy all round the clock.