10.5.2 No Airport - Fix for Westell 327W

10.5.2 update "killed" the Airport wireless connection to a Verizon Westell VersaLink 327W wireless DSL router on a friends MBP (with "n"). After several tries at deleting keychains, reinstalling combo updates, etc., it all pointed to the router itself. That's usually the case, but it's obviously frustrating when it "worked" with a previous version.

Found the latest firmware and applied it - once again, all is happy in wifi land.

For reference:
Model number: a90-327w15
Firmware version (now): 4.04.03.00

edit: Verizon's Firmware download site

I hope this helps others using the Westell modem.

edit 2: just saw exact same model fixed with firmware update earlier this evening over at MacFixit.

scaredpoet said:

Just be forewarned: there are at least three revisions of the Westell 327W. I know: I have two of the three, and they operate very differently and take very different firmware updates. So do be careful updating your firmware and make sure the update applies to your specific hardware revision. If not, you will fry the router.

Click to expand...

Absolutely! There are 6 models of the 327 listed at Verizon, using 3 different firmware versions. If there's any doubt about which version or being able to perform the update, call Verizon.