--- a/TelnetV6.c
+++ b/TelnetV6.c
@@ -428,6 +428,7 @@
 		TNC->Hardware = H_TELNET;
 		TCP->IPV4 = TRUE;
 		strcpy(TCP->CMSServer, "cms.winlink.org");
+		TCP->SecureTelnet = 1;
 	}
 
 	TNC = TNCInfo[Port];
