Trying to use scp and pscp to transfer a file!

I am trying to transfer a file from my local desktop to my ubuntu ip. I have tried the command scp (my file) ubuntu@172.31.95.248:/opt/siff to directly transfer it where I want to, however I either get the error

ssh: connect to host 172.31.95.248 port 22: Connection timed out lost connection

or

FATAL ERROR: Network error: Connection timed out.

I have tried pinging my IP and it connects fine, so I am not sure why this will not connect. Thank you.

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