Network problems since 10.9.2 update

Hi,
I am experiencing a number of problems after my update to 10.9.2 on a mid-2010 Macbook Pro including:
My network printers no longer were reachable. I had to delete them and add them back again.
Airport Utility no longer sees any of my Airport base stations (I have 4).
I cannot access my Time Machine backups that were stored on a disk attached to one of the Airport base stations.
Network attached storage that supports AFP no longer appears in the Devices area of the left banner under the Finder. I still can mount the folders directly through Connect to Server...
I have tried resetting PRAM, restoring OS X from the recovery partition, reinstalling 10.9.2 from the combo updater, and deletion of various plist files related to networking/airport. Nothing seems to work.
I performed the update on a mid-2012 MacBook Air with a very similar configuration (same printers, network) without a hitch.
Anyone see similar symptoms and find a fix?
Thanks.

Not sure this is helpful to you but can't find a better place to provide this solution to a problem I had with the wi fi on my iMac not being recognised by any of my other devices following the upgrade to OS X 10.9.2. After many searches on line and dicussions with Apple support, I realised the problerm was not with the iMac but with my USB internet connection (I live in the country beyong fibre or copper). It was simply that the USB plugin had not been upgraded to deal with 10.9.2. Plugged it into a PC and it automatically upgraded all drivers as it set up to provide internet connection for the PC. Back to the iMac and wi fi is now recognised by all devices. What a trial but also a triumph!

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Welcome to Apple Discussions.
Begin troubleshooting with"
Repair Disk
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Select your HDD (manufacturer ID) in the left panel.
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If DU reports disk does not need repairs quit DU and restart.
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If DU reports errors it cannot repair you will need to use a utility like Tech Tool Pro or Disk Warrior
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Message was edited by: Bruce245

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