Apple wireless keyboard stopped working after latest Mavericks update
MacBook Pro 15 late 2008. Did initial Mavericks upgrade and Apple wireless keyboard and magic mouse continued to work fine. Prior to Mavericks upgrade they were working fine under Mountain Lion and earlier OS X versions.
After installing the most recent Mavericks patch update on Nov 8, the Apple wireless keyboard stopped working and now it will not pair. It sees the keyboard, but when click on Pair it says "Connecting..." and tries and tries, then says "Couldn't connect to the device." Keyboard has brand new batteries.
Have reset SMC and PRAM several times with no improvement. Have deleted bluetooth plist and lockfile (when present) and rebooted with no improvement.
Magic Mouse pairs and works fine. Only having problem with the keyboard.
Has anyone found a reliable fix for this or is this a bug in the latest Mavericks update?
MacBook Pro, OS X Mavericks (10.9)