I did a fresh Install of OSMC 2017-12.1 on a RPI3. SSH service was enabled during first configuration and seems its up and running. But when I try to access SSH v2 I get the message:
Couldn’t aggree a key exchange algorithm…
Result could not access via SSH via putty.
Same build is running on a RPI2 without any issues. I have installed it via the osmc installe exe. No errors found in the logs.