After installing I get "HTTP Test Page" but not the CWPs

[pere]

I have finished the installation of CWP but cannot reach the panels. I use my IP like 111.222.333.444:2030 and also 111.222.333.444:2031. The screen stays not downloading anythig. But if I put only the IP I get HTTP Test Page
powered by CWP | CentOS-WebPanel.com and its message. Any idea?  Thank you!

[studio4host]

contact cwp support to check it