I have just changed over the backup drives for my client from 500 Gb to 2 Tb drives. I had problems getting my eSATA connection working so we started backing up via USB. Now I have my eSATA connection working and I get failed backups. When I manually run a backup, after about 5 minutes I get a message saying "The specified media type is invalid" (see attached). The SBS console DOES see the backup drive.
What do I need to do to get the backup working again?