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Internet dis-connects

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macrumors 6502a
Original poster
Jun 10, 2010
503
41
Have a wi-fi, only one device is affected:
MacBook with 10.5.8

Upgraded to 10.6.3 to no avail.

Network connection panel say connected but no browser can access a url.

Happens only after sleep, and not always.

Only a re-start works for getting connected again.

Tried resetting keychain. Tried deleting 'Preferred Networks'

Any thoughts appreciated.
 
Try disabling the security on your router TEMPORARILY and see then if you have
issues. This will help eliminate whether it's a router security issue.
 
komatsu said:
Try disabling the security on your router TEMPORARILY and see then if you have
issues. This will help eliminate whether it's a router security issue.
Click to expand...

Ok will do.

Our iPad, iPhones and 2 other Macs do not seem to be affected.
 
Tried for a couple of days. Does not seem to have helped.

I should add that when I wake the MacBook it often connects for awhile before the disconnect. Shows connected & the IP address but can not open any page regardless of the browser.
 
I have had this problem from time-to-time. Instead of rebooting I typically turn the mac's wifi off, then back on. That usually gets it reconnected.
 
komatsu said:
ok can you try pinging a site such as www.yahoo.com
Click to expand...

Thanks for the info, results below:

Ping from non-secured router

PING fd-fp3.wg1.b.yahoo.com (206.190.36.105): 56 data bytes
64 bytes from 206.190.36.105: icmp_seq=0 ttl=48 time=56.436 ms
64 bytes from 206.190.36.105: icmp_seq=1 ttl=48 time=133.855 ms
64 bytes from 206.190.36.105: icmp_seq=2 ttl=48 time=64.725 ms
64 bytes from 206.190.36.105: icmp_seq=3 ttl=48 time=59.045 ms

--- fd-fp3.wg1.b.yahoo.com ping statistics ---
4 packets transmitted, 4 packets received, 0.0% packet loss
round-trip min/avg/max/stddev = 56.436/78.515/133.855/32.091 ms

---

Ping from secured router - wpa/personal

PING fd-fp3.wg1.b.yahoo.com (206.190.36.105): 56 data bytes
64 bytes from 206.190.36.105: icmp_seq=0 ttl=48 time=50.338 ms
64 bytes from 206.190.36.105: icmp_seq=1 ttl=48 time=198.391 ms
64 bytes from 206.190.36.105: icmp_seq=2 ttl=48 time=177.090 ms
64 bytes from 206.190.36.105: icmp_seq=3 ttl=48 time=132.076 ms

--- fd-fp3.wg1.b.yahoo.com ping statistics ---
4 packets transmitted, 4 packets received, 0.0% packet loss
round-trip min/avg/max/stddev = 50.338/139.474/198.391/56.759 ms
[doublepost=1478280906][/doublepost]
ScoobyMcDoo said:
I have had this problem from time-to-time. Instead of rebooting I typically turn the mac's wifi off, then back on. That usually gets it reconnected.
Click to expand...

Thanks for the tip however I have tried signing out then back in (same user) and tried turning off the Airport then back on, tried repairing permissions. The dis-connect seem to generall happen awhile after sleep and when I have several web pages open.
 
Presently the DNS server is set to the mi-fi cellular wireless lan:
192.168.1.1 / lan

So changing to 8.8.8.8 is not a problem?
Remember this dis-connect is only occasional, see OP.
 
Perfectly safe and this configuration change will not interfere without the operation
of your Mac.

(You can always change it back if you want)
 
komatsu said:
Perfectly safe and this configuration change will not interfere without the operation
of your Mac.

(You can always change it back if you want)
Click to expand...

Tried it, sadly no help. Seems to be MacBook problem judging from other threads.
 
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