What happens is that when trying to dial VPN from one of the PC's on the LAN, i succeed occasionally to establish the connection, but in most cases connection fails and what i feel is that the time out value of the VPN server is not letting me to accomplish the process successfully since it works once and fails most of the time especially when the LAN's bandwidth is highly utilized ( congestion )........Is it that the VPN server on the other side of the world requiring authentication in a short period of time that i cannot reach due to the lack of internet bandwidth shared on the network ??? Is there any other reason that could be behind the occasional failure ?? What are the initial steps, or any workaround on the clients PC to improve VPN connectivity response ??
P.s ( when i used a separate ADSL line ( no bandwidth shared with other PCs) i never faced a single login failure to the same VPN server, from same PC )