Hay

I have a server with a several IPs :

192.168.1.1

192.168.1.2

192.168.1.3

the source IP is of this server is the lowest: 192.168.1.1 and all works fine 

but when i added another IP: 192.168.1.4 the server stopped communicate with other server and i had tomanually set up the source IP to 192.168.1.1 and everything is working fine again

https://www.virtualizationhowto.com/2016/02/force-primary-outgoing-ip-address-windows-server-2012-r2/

But why that? if the lowest IP is the source what went wrong when i added 192.168.1.4   ?

Thanks