Date: 2017nov6 OS: Linux Distro: RedHat/Fedora/CentOS Q. Linux: Why can't I mount with cifs? It used to work.

mount -t cifs -o 'username=myuser,password=mypass' //winpc/c /mnt/winpc/c

A. There are suggestions out there to use sec=ntlm or the IP-address But that didn't help me. What worked was doing `dmesg` which suggested using ver=1.0

mount -t cifs -o 'username=myuser,password=mypass,ver=1.0' //winpc/c /mnt/winpc/c

If that doesn't work, Check with smbclient