Hi, I have trouble mounting a windows share on my Ubuntu 18.04 workstation. I've tried every thing I found using google search to no avail. The following smbclient command works, so I know my Username and Password are working smbclient -U ulaval.ca\\alfoc //132.203.235.15/Partages/FSS But the following mount fails with errors : sudo mount -t cifs -o cred=/home/alexis/smbcred,vers=2.0 //fssdc1.fss.ulaval.ca/Partages/FSS/ /home/alexis/win/ mount error(22): Invalid argument I've logged the failing and successful trace with wireshark failed : https://pastebin.com/7UTBNgs2 success : https://pastebin.com/kQ80vVmr I'm using Kernel 4.20.11-042011-generic I'm not sure about the server configuration, but it looks like its a windows server that support smb vers=1.0 and vers=2.0 mount.cifs version: 6.8 dmesg with debug information reads when it fails: [ 2021.652324] Status code returned 0xc0000016 STATUS_MORE_PROCESSING_REQUIRED [ 2021.667748] CIFS VFS: DFS capability contradicts DFS flag [ 2021.673168] Status code returned 0xc0000257 STATUS_PATH_NOT_COVERED [ 2021.675001] CIFS VFS: cifs_mount failed w/return code = -22 Thanks for helping, Please respond (cc) to this address. Alex