xfreerdp not connect to server with different RDP port!

I have changed default RDP port on server from 3389 to 1687. Here is the command I'm trying to connect : xfreerdp /u:administrator /v:177.8.130.250 /p:1687 /size:1280x700 But it returns this error : [01:11:14:846] [23825:23826] [INFO][com.freerdp.client.common.cmdline] - loading channel cliprdr [01:11:14:019] [23825:23826] [ERROR][com.freerdp.core.transport] - BIO_should_retry returned a system error 32: Broken pipe [01:11:14:019] [23825:23826] [ERROR][com.freerdp.core.nego] - Protocol Security Negotiation Failure [01:11:14:019] [23825:23826] [ERROR][com.freerdp.core] - freerdp_set_last_error ERRCONNECT_SECURITY_NEGO_CONNECT_FAILED [0x2000C] [01:11:14:019] [23825:23826] [ERROR][com.freerdp.core.connection] - Error: protocol security negotiation or connection failure [01:11:14:019] [23825:23826] [ERROR][com.freerdp.client.x11] - Freerdp connect error exit status 1