WebClient 7.20 error

WebClient 7.20 error

Hi All,
Regarding of the Web Server, using Zenon 7.20 , Web server pro light, when start the web client pc, it has an error which is HTTP Error 503. Also the same thing happens when start web client in webserver pc.
static ip webclient (192.168.0.17)
static ip webserver (192.168.0.140)
Attached some pic about setting on web server , PING result for both Webclient and Webserver and host
Any one please tell me the info.
Regards,
Dalimi

This is a migrated post! Originally posted on 18.07.2016 by user dalimi91. Please be aware that information can be outdated.