I'm have a weird intermittent issue. I've googled around and haven't really come up with much. I'm hoping someone can help. I have a Mac Mini that is about a year (maybe 1.5 years) old. It was the first model without the optical drive. Every so often it drops its network connection. It is connected via a wired ethernet connection to my Linksys router. I can't seem to do anything settings-wise to get it to come back. I've tried renewing DHCP, etc. to no availl. It still shows connected in settings, but it obviously isn't because I cannot hit anything on the internet and I cannot even hit my router's settings page. It isn't just the browser--it is anything. If I turn on wireless, I can use wireless fine. It is just the wired connected that is screwed up. Originally, I needed to reboot to get it to come back. However, I found out recently that if I unplug the ethernet cable and plug it back in it begins working! It is an annoyance that I'm hoping I can fix. I am on Mountain Lion. I never experienced this before Mountain Lion (it originally had Lion installed), but I don't remember it happening until recently and I've had Mountain Lion since a couple of weeks after it was released. It also seems to happen after the Mac has been asleep, *BUT* the network will work immediately upon waking. It is usually a minute or two after it wakes up that it gets into this state (if it is going to happen). I'm fresh out of things to try. Has anyone else seen a similar issue? I'm hoping that the network card isn't flaking out on me. Thanks in advance!