Lately I see a lot of questions about iscsi and not working or slow connections.
there is an easy way to fix this I have never had any issues with the windows initiator.
How do you start this. Configuration by powershell , If you don’t know the commands there is an easy way to look this up.
get-command *iscsi*
Now there is a nice list of all the Command lets.
But I this blog I use the Gui more that the screens also work for any other version than windows server 2012 R2.
go to the control panel or server manager and find ISCSI initiator.
Click on discover portal and type the ISCSI target IP
Easy as this but here are most errors started, a lot are just click on OK this is so wrong 
Go click advanced Wooowo whole new screen
see what happened when you click OK everything is default.
after selecting the local adapter and set it on Microsoft ISCSI Initiator and select the Nic where your ISCSI IP is located.
This is the right way to configure ISCSI.
Remember Multi path is using the same config
