I'm upgrading CCM 4.1(3) to 5.0(4) and I'm having an issue when I use the Windows Upgrade. Everytime it gets to the part that it wants the DMA file it fails. I get a message "File Retrieval failed for unknown reason" or it states that it cannot login with the user info that I have. I've must have tried 30 different options and the same thing. I've even did an basic install to verify that everything would work, and it does. But as soon as I try the Windows upgrade it fails.
Now I've tried the 3Com FTP Server, the Pumpkin FTP Server, msftpsrvr.exe SFTP server, and no luck. Is there a better one than these that someone has had better luck with.
I've printed out the DMABackupInfo.inf file to make sure that all the setting that I put in match what's on that file. I only have the 2 servers (Pub & SUB) and one other on this LAN, the other server I'm using it has a DNS and FTP-SFTP server.
Any input before going to TAC would be very helpful. I've not had very good luck lately with TAC getting back with me.