Hi Tonny,
did your WARN message left after certain period of time? I have currently the same WARN message in my log
2018-09-23 17:50:24.258 [WARN ] [arketplace.internal.MarketplaceProxy] - Failed downloading Marketplace entries: : Received fatal alert: handshake_failure
2018-09-23 17:50:24.261 [WARN ] [arketplace.internal.MarketplaceProxy] - Retrying again in a minute
Thanks