Internet connection lost after sleep - Ethernet

I see that I am not alone.

I have an all Apple set up--iMac, Time Capsule, airport expresses. The lost internet connection after sleep phenomenon started about a month ago, and is indeed becoming very tiresome. I do dutifully download software updates as they become available.

I will avoid having the computer go to sleep, but I do hope that Apple fixes this problem. I won't waste any more time looking for a fix!

It looks as if there is a simple fix for this annoying problem. Basically, it is resetting the PRAM and the NVRAM.

See support note:

http://support.apple.com/kb/ht1379

I found this out from Apple support. The note does not say this, but I was asked to have the machine entirely disconnected from other devices when I did this reset and to unplug the iMac itself for 15 sec before starting this procedure.

In addition, in System preferences - energy saver I was asked to uncheck "Put the hard disk(s) to sleep when possible" and to check "Wake for network access" .

It has worked like a charm. In fact a certain balkiness in calling up some URLs seems to have disappeared. Safari is working better than it has for a long time. (I've had my iMac for a long time, so I suppose that some of these setting have become corrupted over time.)

You might also check to see that your screen saver is not clashing with your energy saver settings.

stevenfromvancouver,

Not sure how long you've had your Mac (you said a long time), but the Apple support link you provided states, "Unlike prior versions of the Mac OS, Mac OS X does not store network settings in PRAM. If you experience a network issue, resetting PRAM will not help." Are you still using OS 9?

couchcowboy

Couchcowboy,

The operative fact here is that, while this fix seemed to work--did work--for a day or two, the problem soon returned. Or maybe it never really left, but something that I did while doing all the things the Apple rep told me to do helped, but then stopped helping.

Whatever. I am no closer to having a solution to this problem than I was before. I have a workaround, of course. I've set the iMac (with the latest OS X) so that it is never put to sleep automatically. I put it to sleep by hand at the end of the day. I can deal with resetting the connection once a day.

Most of the time in the morning, I should add, the internet connection is still there, but *sometimes* it isn't. I find that very puzzling. There seems to be nothing going on at night, when it's asleep, so how could there be a difference in the morning?

Just as a side note, I have a Logitech Squeezebox internet radio. When the iMac loses its internet connection, the radio doesn't work at all. I guess it needs to get some information or other from the Logitech web site. Perhaps the presets are stored there. That's just annoying, when I get up in the morning and try to listen to the radio before I check the computer. Maybe I'm the last one left who does it that order, but I often do.

Anyway, I'm sorry that I raised false hopes. But it was the Apple support person who got me to clean out that PRAM. Shouldn't they know better? Another support person that I talked to wanted me to reinstall my OS. Do you have any thoughts on the probability that this would help?

Steve

I am having the same problem. It started a month ago only as an occasional nuisance. Now every time my computer goes to sleep or is put in the sleep mode and then awakened the wireless Internet connection is lost. The computer does regain the connection but it takes about a minute or two. This is rather frustrating and have tried numerous things to remedy it to no avail.