Adobe Freezing: Contacting http://ocsp.digicert.com for OCSP based revocation checking

[SystemGo5E27]

Running into an issue with all of our users having this pop up and freezing their Adobe Pro, they have to exit out of Adobe via Task Manager to allow processes to continue. 

I did find a workaround for this by disabling protected mode (Edit>Preferences>Security (Enhanced)) but was wondering if there was a better way to handle this as we have quite a bit of users running into the same issue?
Any suggestions greatly appreciated.

[chintan_2471 · Accepted solution]

Actually, I found the fix. But I had to change that setting on each of my users.

Note: You need to be quick to change this setting before the message appears. You have about 10 to 15 seconds to make these changes.

1. Open PDF
2. Click on Menu on top left of the screen and select Preferences.

3. In the Preferences window, click on Signatures at the bottom. Under the Verification section, click on the More button.

4. In the Signature Verification Preferences window, uncheck all the checkboxes shown in the screenshot below. Click OK on the current screen and then click OK on the Preferences screen. Restart Adobe Acrobat, and you should no longer see the popup.

[alanhern]

ADOBE Acrobat reader hangs forever with trying to contact http://ocsp.digicert.com  on opening certain pdf files.  Cannot access the PDF file for even viewing.  How do I fix this for all time.  How do I stop this so that I can open the PDF file.   tried downloading file again with new name.  it is fillable.  I can print to PDF the file and open it but it is no longer fillable.  Win10  64 bit   adobe acrobat reader.  fully updated windows, and adobe up to date.   

[Amal.]

Hi there,

Hope you are doing well and thanks for reaching out.

Plese go through the correct answer marked in the similar discussion https://adobe.ly/3UdFE7o and see if that works for you.

Let us know how it goes.

~Amal

[Martin37279260uewd]

No, it is not working. Link for adobe cleanup tool not working. Uninstall and install adobe do not work.

[Amal.]

Hi there

We are sorry to hear that. Please remove the application using the Acrobat cleaner tool https://www.adobe.com/devnet-docs/acrobatetk/tools/Labs/cleaner.html, reboot the computer and reinstall the application using the direct link https://helpx.adobe.com/acrobat/kb/acrobat-dc-downloads.html

Let us know how it goes.

~Amal

[Eager_grace3346]

Hi thank you

I've got the same problem, I tried what you suggested but it didn't work.

Could it be a problem with IOS Sequoia 15.4.1? with ios 15.3 it worked regularly...

THANKS

[Martin37279260uewd]

I have exactly the same isssue. 😞

[nicoleg46551377]

I just started having the same issue. Adobe, what happened and have you figured out a solution yet??

[Amal.]

Hi there

Have you tried the troubleshooting steps shared above?

Let us know how it goes.

~Amal

[chintan_2471]

I followed same steps above and it didn't work for me.
I uninstalled adobe and creative cloud then restarted by computer and install Adobe standard by it self.
I've also disabled new acrobat but that din't help. It still freezing.

[Lukasz3806158152id]

I've had exactly the same problem for half a year... I stopped using Adobe...

[Illa37822930q4xn]

Adobe Freezing issue often occurs due to the software contacting for OCSP-based revocation checks, causing delays or disruptions in operations. Consider troubleshooting network settings or Adobe configurations to resolve the issue promptly.

[nitin38304212n6zj]

I also had same issue, it is resolved  by  changing  " disable new acrobat " 

[chintan_2471]

I just did that and it didn't work.

[nitin38304212n6zj]

I have used this method, but later I found good fix , 

I found that in firewall one of the ip of digital was blocked. In host I used another ip which was working.

https://knowledge.digicert.com/alerts/new-dedicated-ip-addresses

[susan_6580]

Come on Adobe; I am paying an arm and a leg for Adobe Acrobat and this issue is just not going away.  I can't bill my clients for time wasted trying to edit a PDF they sent me !

[chintan_2471 · Accepted solution]

Actually, I found the fix. But I had to change that setting on each of my users.

Note: You need to be quick to change this setting before the message appears. You have about 10 to 15 seconds to make these changes.

1. Open PDF
2. Click on Menu on top left of the screen and select Preferences.

3. In the Preferences window, click on Signatures at the bottom. Under the Verification section, click on the More button.

4. In the Signature Verification Preferences window, uncheck all the checkboxes shown in the screenshot below. Click OK on the current screen and then click OK on the Preferences screen. Restart Adobe Acrobat, and you should no longer see the popup.

[debora_4051]

Thank you so much! I spent a lot of time cleaning and reinstalling without finding a solution. Thanks to your tip, I'm now able to use it again without crashing

[chintan_2471 · Accepted solution]

You can also Whitelist following Digicert IP addresses to your firewall and it works too.

• 192.229.211.108
• 192.229.221.95
• 152.195.38.76
• 192.16.49.85

New Dedicated IP Addresses (digicert.com)

[GoBears84]

This is the way.  I just whitelisted these sites in Chrome and the problem seems to have resolved.

[teresahessler]

Thank you so much for the detailed instructions! That annoying popup and crash seems to have been resolved.

[Cris35585496b63z]

Thank you! All the other solutions didn't do it, or were undone by updates. This one worked 🙂

[Zeroinryoku]

Thank you for showing detailed instructions.

I found a similar set of instructions in another discussion thread, however it did not have the very useful screen shots.

Your screen shots confirm that I implemented the solution correctly.

Unfortunately, despite following the above instructions, the problem was only fixed temporarily !

It came back the following day !

Whilst, this solution does provide some respite from the waste of time and money this problem has caused, it has not proved to be a definitive solution...in my case.

Despite clean installs of Windows 11 and re -installation of  Acrobat Pro, the stability and reliablity of  Acrobat Pro over the past year have been disappointing.

Hopefully, Adobe will provide a definitive solution to this problem that does involve switching off signature verification.

[patrick_7639]

Amazing. Thanks you!  

[katharina_8238]

Thank you!

What a nightmare! This issue only started after 9 months having Adobe Acrobat installed.

But your solution worked.