Connection with Beckhoff

Hi,

I'm trying to connect with Beckhoff (CX 1010-N000) in TwinCAT 2.
I could Add route and Choose Target in System Manager, but PLC doesn't want go to Start Mode -> in right-down status bar is showning 'Timeout'. What could be casue of it ??
I have also a question about AMS NetID. PLC has set DHCP and automatically set IP e.g. 192.168.11.123 but he has AMS NetID in other subnet e.g. 5.7.116.1.1. Could it cause the problem ??

Thanks for help

Although an AMS Net ID resembles an IP address, it is completely independent. an AMS Net Id does not have a s subnet. The AMS Router cross references in which IP address contains the AMS Net Id.