Ed's sounds like the more comprehensive fix, but I also find that
using "Network" preferences' "Assist me..." button is useful when I
lose connection to my router, either at home or work (since I carry a
laptop back and forth, this happens fairly often, but seems to be
happening more lately).
After clicking "Assist me..." choose "Diagnostics..." then follow the
prompts, selecting the right settings for your location (usually
you'll just click on "Continue" in each dialog box). It will take you
through your location, type of connection, the specific network you
want to join and then try to log in all the way through to your ISP's
server. 99% of the time that gets my connection back in about a minute.
Dan
Delete all "Preferred Network" listings then re-establish [Useful
for: router not recognized, cannot connect to router]
One surprisingly effective AirPort Base station-specific fix for an
inability to connect to wireless networks involves deleting all
stored preferred networks, then re-establishing any used listings.
Here's the process:
Open System Preferences and select the "Network" pane
Select "AirPort" and click "Configure"
In the "By default, join:" pull-down menu, select "Preferred networks"
Delete the network(s) you regularly use from the list
Launch the "Keychain Access" application located in Applications/
Utilities.
Click on the "Kind" filter at the top, and look for "AirPort network
password" entries. Delete them.
Restart, or log out then back in.
Repeat steps 1-3, this time re-adding your regularly used AirPort
networks to the list using the " " button.
Restart or log out then back in.
My brother had a similar problem and the above fixed it.
On Sep 18, 2009, at 4:16 PM, Bill Rising wrote:
Hi all,
I've lately been having trouble with my router at home. My wife's
white mac book often finds the router, gets a proper (not self-
assigned) ip address, but then cannot hook up to the internet. My
MBP recently (within the last week) started displaying the same
symptoms. It is so bad that although the computer has a valid ip
address for the range allowed by the router (192.168.1.something),
my computer cannot even see the router.
In the past, renewing the DHCP lease fixed the problem. Now, even
that won't fix things. Today it took me nearly 1 hour to get hooked
up to the internet. None of the following worked:
. renewing the dhcp lease
. setting a fixed ip address
. going back to dhcp and renewing the lease
. changing the channel that the router was broadcasting over (from
another computer, of course)
. deleting and recreating my airport connection under the Network
Preference Pane
. unplugging the router, waiting, and plugging the router back in
. rebooting my computer
For whatever reason, the internet connection only started working
after I logged under another account, tried to get to a web page
and failed, and then logged out of that user.
My router is a NetGear WGR814 v6 (which is rather old) using the g
protocol only. I'm still using 10.5.8.
FWIW, I never had a lick of problems with my PowerPC alubook.
This is more than a little annoying---does anyone have any hints?
Bill
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