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the software update server (nrc1) is not responding

the software update server (nrc1) is not responding



I have been receiving this message on my Snow Leaopard iMac for weeks now when I try Software Update ....


There appears to be nothing in the Communities database about it, my internet connection works fine and always has ... any ideas?

iMac, Mac OS X (10.6.6), 27 inch i3

Posted on Jan 9, 2012 12:32 AM

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Posted on Jan 9, 2012 1:04 AM

Some things you can try:


1. See if software update works from another account.


2. Boot in safe mode. See if SU works. If so, reboot normally and try again.


3. If those don't work maybe you need to delete the software update cache.


~/Library/Caches/com.apple.SoftwareUpdate/


Note there are two plists assocated with SU but I don't think deleting them will change anything since there is nothing significant in them. They are,


~/Library/Preferences/com.apple.systempreferences.plist

~/Library/Preferences/ByHost/com.apple.SoftwareUpdate.XXXXXX.plist


where the X's are a sequence of hyphenated upper case leters and digits.

2 replies
Question marked as Best reply

Jan 9, 2012 1:04 AM in response to Dirk Van Der Werff

Some things you can try:


1. See if software update works from another account.


2. Boot in safe mode. See if SU works. If so, reboot normally and try again.


3. If those don't work maybe you need to delete the software update cache.


~/Library/Caches/com.apple.SoftwareUpdate/


Note there are two plists assocated with SU but I don't think deleting them will change anything since there is nothing significant in them. They are,


~/Library/Preferences/com.apple.systempreferences.plist

~/Library/Preferences/ByHost/com.apple.SoftwareUpdate.XXXXXX.plist


where the X's are a sequence of hyphenated upper case leters and digits.

Jan 9, 2012 2:53 AM in response to X423424X

It doesn't work in Safe Mode ...


Deleting the Software Update cache, allows it to start checking, then within a few seconds comes back with



the software update server (nrc1) is not responding


Check to make sure your network connection is operating normally. If there are no issues with your connection, contact your network administrator for assistance.



BUT .... removing


com.apple.SoftwareUpdate.plist


WORKED ....


So .. heads up for anyone else who comes across this problem .. THANK YOU

the software update server (nrc1) is not responding

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