Activation problem

Forum|Forum|4 years ago
December 2, 2021
3 replies
435 views

I have installed Adobe Acrobat PDF Standard DC 2015 on 2 computers.

One day both of them show this activation error:

I can´t deactivate, only sign out. but the problem still.

Could someone help me?

Thanks in advance!

This topic has been closed for replies.

Nancy OShea

Community Expert

[Moderator moved from Account, Payment & Plan to Download & Install.]

@Einfantes,

Which operating system do you have?

Are TLS 1.2 connections enabled on your system & browsers? Without TLS 1.2 connections, you cannot connect to Adobe's servers for security reasons. See link below for details.

https://helpx.adobe.com/x-productkb/multi/eol-tls-support.html

Nancy O'Shea— Product User & Community Expert

E

EduInfantes

Participant

Hi @Nancy OShea

I Have Windows server 2012 R2 and yes I have TLS 1.2 enabled.

I don´t know what is happening, :S

Nancy OShea

Community Expert

You probably need to update your web browser too. Also enable TLS 1.2 connections in the browser.

Failing that, use the Adobe's AcroCleaner Tool to wipe old Acrobat settings from your system.

https://www.adobe.com/devnet-docs/acrobatetk/tools/Labs/cleaner.html

Reinstall from your original disks or downloads that you received at purchase.

Nancy O'Shea— Product User & Community Expert

try67

Community Expert

Are you sure you installed the right version? You either need to log-in to your account or you need to enter the serial number, but not both. Acrobat DC is subscription-based, but Acrobat 2015 is not. The former requires you to log-in. The latter requires you to enter a serial number and then activate it.