Currently Being ModeratedJan 14, 2013 4:49 PM (in response to tweetzero)
Generally, you don't want to tweak the wifi settings. It pretty much takes care of itself. The caveat to that is, of course, if you're experiencing problems.
The 'looking for networks' behaviour only happens when you log in, wake the mac from sleep OR when you click on the wifi icon. You clicking on it tells the mac "I want to see what networks are available" - so it does a scan for you to check to see if any new networks have appeared since you last clicked on it (or woke/logged in). In short, if you don't want it to look for new networks, don't click on the icon!
Unchecking the 'ask to join networks' option only applies when your mac detects a new network (such as when it wakes) that you haven't already authorised; it'll ask you to confirm whether you want to join it or not. Otherwise, if the network is open it'll join automatically. You should keep this selected if you travel around with your Mac. It's a good idea to know what network you're on before you start plugging in passwords or typing other things into the mac.
There is a utility that you can use for ping and traceroute called 'Network Utility'. Click on the Spotlight icon in the top right of your screen and type "Network' and you should see it at the top of the list. Hit 'return' to open it.
DHCP licences are normally renewed automatically by your router every 24 hours. Again, there's no reason to be messing about with that unless you're experiencing problems.
If you're experiencing wifi dropout, let us know, and we'll make some suggestions, but if you're not, you're best leaving your mac to manage the background processes. It knows what it's doing!
Message was edited by: softwater
Currently Being ModeratedJan 14, 2013 5:38 PM (in response to softwater)
softwater, I've had a lot of wi-fi dropouts over the last month, especially since December1, 2012 when I downloaded ML to my 2011 17" MBP. There were so many 'you are not connected to the Internet between both MBP's, and the slow loads and long hangs were becoming maddening. Resetting Pram and SMC did nothing, rebooting modem and router, nothing. I thought it might be a Comcast issue. However, running speed test, my down load and upload were just what I'm paying for: Download 34mbps Upload 7.8 mbps. It was painful to get around the Internet. I've managed to fix those issues, thanks to reading a lot of posts and trying some suggestions. So far, my effort has paid off. Both MBP's are running really well, and have been for several days. The 2009 MBP has never been so quiet, especially in sleep mode. The screensaver works and both MBP's wake with the touch of any key. Resetting and rebooting both the modem and Time Capsule, creating a new 5MHz Network and guest network made the biggest difference.
I deleted the older networks in Network preferences and in Key Chain, (both login's and system). I also deleted the old Time Machine passwords (disk and application). After making some changes in Energy Preferences, setting to "longer battery life and unchecked 'wake for Network access'. With the restarts to go along with the process, and running Disk Utility, I now have two working MBP's, a far cry from last week's: unable to wake (black screen), unreliable wi-fi connections, Screensaver not working, both MBP's running so hard in sleep mode, getting very hot: All in all, I've done pretty well not letting the Mac do it's thing because it knows what it's doing. Not with ML is doesn't. Thanks for your reply, I appreciate it. I wasn't going to do anything with DHCP, was just curious.OS X Mountain Lion (10.8.2), 17in. 2.5GHz Intel Core i7
Currently Being ModeratedJan 14, 2013 6:44 PM (in response to tweetzero)
I've done pretty well not letting the Mac do it's thing because it knows what it's doing. Not with ML is doesn't.
Well, you'll note that I said 'generally' and 'unless you're experiencing problems'...
But good that you solved your problems. To be fair, it's not that "ML doesn't know what its doing", it's just that installing a new operating system that is compatible with 40 different models of mac ranging back in time from 2007 or so with a multitude of different hardware configurations and a variety of compatible and incompatible existing software packages is never going to be a simple 'click and install' for every user (it's a feat that it is that simple for so many, actually).
As someone once said on these forums, installing an OS onto a computer is analogous to performing major heart surgery on a hospital patient.
In some ways Apple have themselves to blame for user frustration, in that they sold both Lion and Mountain Lion as exactly that: a "click and go" app as if it was a $1.99 utility on the App store, and thus raised expectations that were never going to met in every case.
Still, I dare say you learned a lot about how your macs work in the process, and that in itself is a good thing, right?
Currently Being ModeratedJan 15, 2013 12:14 AM (in response to softwater)
Absolutely, this was a great notch up for me in resolving issues, and they were big ones. Not a minute wasted, and what started out as complete frustration, ended up with solution and a greater understanding of the bigger picture. I really don't have much of a grasp of networking and Wi-Fi, there's alot to it.
I do have a question for you. Just a few seconds ago I got a prompt saying: You have a bad gateway. That doesn't sound good. I've never seen that before, ever. Do you think it's because I unchecked Java in Safari preferences? I'm lost to what this means.
Thanks for your support.