Skype doesn't launch after suspend

Just a quicky
After suspend mode, Skype has an issue, i.e. when launching Skype the Skype window opens but blank. I stalls right there - like if looking for something. killing it, I get a ‘skype does not answer error’. I tried waiting, but nothing gets through. If I do a reboot, everything’s fine and back to normal.
Is it a Skype issue ?
Is it a UM 17.04 issue ?

Thanks