Software Update can't check for updates (Lion)

Same problem here: till yesterday everything works, even weeks after installing LION. But now I get this message:

Het bestand 'index-lion-snowleopard-leopard.merged-1.sucatalog' is niet gevonden op de server 'swscan.apple.com'.

translated:

The file "........" is not been found on the sercer " ..............".

Anyone can help?

Same here

I am not sure if it appeared after having done a Repair of access rights in the Harddisk maintenance. retried to repair without success. still no Software update possible ( App store runs well)

I've got the exact same problem here too.

Here it is in English:

Software Update can't check for updates because of a network problem.

The file “index-lion-snowleopard-leopard.merged-1.sucatalog” couldn’t be found on the server “swscan.apple.com”.

This only started yesterday, is it a problem on Apple's end or mine?

I'm having the exact same issue. Just upgraded my MP Pro to Lion and now SW Update doesn't work - same error message as evilblob.

HELP

I don't think this is a "Lion" issue. I have been using Lion for a while now with no problems. I just discovered this issue today when I tried to run Software Update. I am fairly sure this is an apple problem, after all, it does say it can't find the file on the server. I hope it gets fixed soon.

Yep, same issue here, internet, email VPN all works fine, just get this when starting sorftware update.

It may be a Lion-specific issue but it's not a Lion Mac OS issue. For whatever reason Lion can't find the kinda "update index file". Having this problem on both my MBA and iMac.

...and I've thought that happens only on Linux and Windows. I mean, I've bought a Mac to avoid exactly this kind of issues! Big fail, Apple! Big fail!

I have Lion since it came out and I was using it without problem since this morning when I suddenly discovered this issue. I will try to test it on another MB Pro and see what it says. If it is going to give the same problem than could be a network (Apple) issue.

I'm having this problem, too. Made a clean install of Lion last night, got some updates going and now this morning Software Update gives me this error.

I have 4 Macs, all with Lion (3 new with Lion pre-installed and 1 upgraded from App Store) and they are all giving me the same exact problem with the network. It might be for sure an Apple Servers Issue.

The solution could be a small manual update or maybe is just a matter of time before it gets back online, I m sure.

I hope this help anyone (me included!)

Same problem for me...My point of view is the same of frappeo...just waiting...'cause I've done a look in internet and there're not so many indications to solve the problem without risk to make a worst problem...

They are probably updating and adding new updates I guess everyone is going to have to hang tight until tomorrow.

Same issue here on my late-2009 iMac upgraded to Lion a week ago.

The file “index-lion-snowleopard-leopard.merged-1.sucatalog” couldn’t be found on the server “swscan.apple.com”.

Looking forward to a resolution on apple's end.

Hope this isn't a sample of Apple with out Steve 😉

I'm having the exact same problem here in Jakarta, Indonesia, running MBP on 10.7.1, build 11B26 with normal internet connection. FYI this problem is also being discussed here https://discussions.apple.com/thread/3308048