Your picture has helped me to figure out, what I am doing wrong. I have tried to reserve the lab again.
After reserving the lab, I was automatically redirected to the topology, which had shown the right IP address as in your screenshot. Then I had lost the Internet connection (going by train), and the topology was gone.
On https://devnetsandbox.cisco.com/RM/Topology, I have seen a note that the lab is "Currently reserved by me", but I did not know how to re-connect to the lab. Therefore, I had clicked the lab icon and I have reached at a topology without APIC-EM IP address:
Clicking the "Reserve" button did not make sense, since this will reserve the lab a second time.
Now, I have found how to re-connect to a reserved lab:
This will lead you to the right topology and the APIC-EM IP address is displayed:
Okay, that was a newbie problem.
@yachwen: Thanks a lot for your helpful answer.
Sorry, for this newbie question:
Today, I had scheduled a APIC-EM__GA_HW-MiniLab-1. I could connect via VPN and I could access the network elements. I also found the login credentials how to log into the APIC-EM. However, although I was searching for it like a maniac, I have not succeeded to find the IP address or FQDN of the APIC EM. Neither in any of the emails, nor on any of following pages:
Here are also some screenshots I have taken, but all of them are missing the information I was looking for:
Isn't the APIC-EM included in the lab? Am I supposed to download the APIC-EM SW and install it on a 64 GB DRAM VM, as the installation specs say and then use it to discover the network?
Thanks for any hint to the right direction.