WAPT 6.0 encounters problems during rampup

[WAPT 6.0 encounters problems during rampup]

I do encounter Same issue . I am using WAPT Pro 4.0 in my Laptop after 1200VU it stops responding

[Do not see any Load on My server]

I setup profile for one of my application Scenario

 

Ramp-up load 0 - 900 users with steps 25 every 03 Seconds. When i ran test i am getting some network error (eg: 16.2 Netwprk error on all hits, %) .

 

But when i check on my server i did not find whether this tool really hitting the server. I can see there 61 hits on my server before running this tool and while running test.

 

How do i confirm WAPT Pro really establishing Load in the server ?