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huh, my macbook has been backing up fine on 10.6 using a usb drive connected to my imac (also wireless). I mounted the TM drive on the MB before the first backup (in finder, not physically) and it has been working great since.
 
I can backup to another mac with afp over network as well - it's the smb side that appears to have died.
 
I'm another victim of this problem. Can't back up to a networked SMB share with TM. It gives me the Error 45 message.

Has anyone had this same error and resolved the issue?

Surely this isn't the capitalistic pigs at Apple trying to force us to buy their Time Capsules?
 
Hi,

sorry for crossposting this (also to thread https://forums.macrumors.com/threads/774097/), but I am so happy that it is working now, and I have to share this :D

I desperately tried to make the TM work again after my 10.6 upgrade. I had the same problem as many users here, too: TM could not mount my TM image from an smb/windows share anymore. With 10.5 everything had worked like a charm for a many months though...

So much I know now: it is definitely a network authentication issue - the sparsebundle needs not to be changed, recreated, or renamed!

After many hours of trial and error the following worked for me (but I am not sure which of the steps are really necessary and which not!):

- connect the share via Finder Go To -> Connect with server (sorry, have a German version here...)
- use the IP address instead of the network name for this share
- use a username/password which works with the default domain on the smb server, so don't use any domainname prefix for the username
- don't click "add to key chain" (sorry, again only German here...) for this login
- afterwards connect the volume in TM as usual, as a new volume, and use the same username/password as above

Afterwards, everything was working for me again (using the same sparsebundle from 10.5)!

have fun and keep trying....;)

^^ This worked for me after many hours trying to get it working again.

My setup: MacBook Pro running 10.6 with WiFi -> Router -> Windows Server 2003 with Shared Volume (SMB) for Time Machine backup.
 
Finally got it working:

1.) make your sparse image:
hdiutil create -size <SIZE IN GB>G -fs HFS+J -volname 'Time Machine Backups' -type SPARSEBUNDLE <MACNAME>.sparsebundle

2.) create the file:
com.apple.TimeMachine.MachineID.plist

3.) put this text in the .plist with MYUUID from System Profiler -> Hardware):
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>com.apple.backupd.HostUUID</key>
<string>MYUUID</string>
</dict>
</plist>

4.) copy the .plist in the sparsefile folder you created in step 1:
cp com.apple.TimeMachine.MachineID.plist <MACNAME>.sparsebundle/

5.) copy your folder to your networkshare and fire up TM... this worked for me

The .plist file seems to do the trick
 
I notice that in the original post the MAC address contains separators. I don't know if this was the problem, but my understanding is that that part of the sparse image filename should just be the address with no separators. e.g., "Sexybook_002500cdd708.sparsebundle" instead of "Sexybook_00-25-00-cd-d7-08.sparsebundle".

Just a thought.
 
Something else to try

This is kind of an old thread, but since I just got done fighting this issue I figured I'd share anyway. I created a sparsebundle as instructed here, but had to use the MAC address of my ethernet (wired) adapter, even though I'm connecting to my NAS over wireless. I recently switched my iMac from a wired to wireless connection, so I don't know if that has anything to do with it...but i was having the same problem described here (the *.tmp.sparsebundle file) until I created a file with mymachine_ethernetmac.sparsebundle as the name (edit: with mymachine and ethernetmac being the actual name of the machine and the actual mac, of course)...now it seems to be happy.

Hope this helps.
 
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