Hi Chris,
Could you send me the complete log file to bmordue@adobe.com?
At a first glance, this looks like a network issue. Are you able to use Creative Cloud file sync on a difference machine or different network (for example, if you are unable to sync in the office, are you able to sync from home)? Are you aware of any changes to your network recently, such as changes to the firewall or other network security settings?
Thanks,
Ben
