Help to resolve the lab launch issue

I am currently taking the online self-paced course ‘Scaling Workloads Across Multiple GPUs’ and I found that I couldn’t launch the lab environment because the system said that I had launched more than the expected number of times:

I tried to contact the support time via multiple times and yet I received nothing from them. Does anyone know how to resolve this issue ? Thanks in advance !

What is your DLI username?

My username is Shuran Xu, and my email is


Thanks !

I am doing the Self paced course on Accelerating CUDA C++ Applications with Concurrent Streams. When I try to launch the GPU runtime environment I get a pop up that I reached the expected number of times as below. Please help, I just have the last lesson left on Concurrent streams and the exercise/assignment pending, I planned to finish it this week to get the certification now unable to proceed as this error is blocking. My username is Saranyasowriraj. Thank you in advance.