CS5.5 Activation question.

[최23325981na8w]

I am using CS 5.5.
I installed a new computer, downloaded it from the website, and installed it.
Activation warning has been posted since yesterday.
I chose "retry activation.i have ready disabled one of my other computers."
After that, press continue.
Then you will see a notice saying, please connect to the Internet, then press continue!!

But I'm already connected to the Internet!!
The counselor told me to do it with a mobile hotspot, so even if I try it with a mobile hotspot, the same guide appears.
And other computers are not using the cs5.5 program.!!!
However, website(https://account.adobe.com/activated-devices) will inform you that there is no activated pc.
I consulted with the counselor twice and asked him to contact me.
Please take measures so that it can be used on my computer.
ID : <email address removed>

[John T Smith]

TLS 1.2 is now required to connect https://helpx.adobe.com/x-productkb/multi/eol-tls-support.html
-http://helpx.adobe.com/x-productkb/policy-pricing/activation-network-issues.html
-https://helpx.adobe.com/creative-cloud/kb/troubleshoot-download-install-logs.html#error113
-on Windows be sure to do the EASYFIX.MSI in step 2 of the 1st link