June 7, 2006 2:05 PM PDT
MacBook Pro Special Report: LEAP Networks; cannot connect to
Several users note an issue where the MacBook Pro is unable to connect to LEAP authenticated wireless networks used by several universities and other organizations.
One reader writes:
"I work as an IT/Mac supporter for the Lucerne School of Art and Design. Today I had to support 3 MacBook Pro users - all of them were unable to connect to our LEAP protected wireless LAN."
Users receive the following error in their system log after errors connecting to the LEAP network:
- mDNSResponder: Repeated transitions for interface lo0 (127.0.0.1); delaying packets by 5 seconds
This appears to be an issue with the TCP/IP implementation used by Mac OS X 10.4.5 for Intel, and will likely require a software update from Apple.
Index:
- 30" Cinema Display distortion
- Airline, auto power adapter problems
- Audio distortion/poor sound quality
- Apple addressing issues with new revisions?
- Battery Exchange Program
- Battery problems: Shuts off when not connected to power, more
- Built-in Display distortion
- Clock speed of ATI X1600 card -- some units apparently underclocked
- Cooling solutions
- Dead-on-arrival units
- Display slightly bent, not latching properly -- solutions
- Downgraded SuperDrive relative to PowerBook G4
- ExpressCard issues
- FireWire 800 cards for ExpressCard/34 slot on the way
- High-pitched whining noises: Eliminating; Apple acknowledges
- iSight not functioning properly -- fix
- Kernel panics caused by AirPort drivers; Not sleeping properly, still "on" with lid closed
- Kernel panics upon waking up (Inability to wake from sleep)
- Lack of alternative power adapters
- LEAP Networks; cannot connect to
- Loss of speaker capabilities
- Missing components
- Not sleeping properly, still "on" with lid closed
- Notes from service manual
- Poor general network performance
- Printer issues: Not recognized, more
- Problems sharing the Internet connection
- Release notes
- Repeated system freezes or sudden restarts -- checking for bad RAM
- Replaced logic boards have no software serial numbers
- Slow networking performance with VLANs; VOIP phones
- Wireless connectivity issues
You'll find info on some forums (like <a href="http://forum.majorgeeks.com/archive/index.php/t-76121.html" target="_blank">here</a>) where this is due to a DNS server timeout. Apparently, Mac OS X is a bit more impatient than usual (not sure about if this is the actual reason.)
The solution mentioned was configuring different DNS servers on the router.
Netopia 3347W (wifi)
PowerBook G4