PDF Security & Access Issues

Fix Adobe Acrobat No Internet Connection Error in Send for Signature

Khadija Khan Oct 23, 2026 868 views

Question details

The user is unable to use the Send for Signature feature in the Adobe Acrobat desktop application due to a false network error.

How to Fix Adobe Acrobat 'No Internet Connection' Error When Sending for Signature

Product: Adobe Acrobat
Device & OS: Mac
Scenario: Attempting to send a PDF document for electronic signature using the Acrobat desktop application.
Observed behavior: The application blocks the action by displaying a 'No Internet Connection' error, despite the device having an active and fully functional internet connection.

Before you start

Ensure your Mac is connected to a stable Wi-Fi or Ethernet network and verify that your system date and time settings are configured to update automatically, as an incorrect system clock can cause server certificate validation to fail.

Solution 1Recommended

Troubleshoot Acrobat Account and Security Settings on Mac

Since the issue occurs within the Mac application rather than a web browser, refreshing your session and ensuring security software isn't blocking Adobe's servers is the most effective approach.

False offline errors in desktop applications are frequently caused by stale login tokens or local firewall restrictions that block the specific ports used by Adobe Sign services.

Refresh Account Session

Click on your profile icon in the top right corner of the Adobe Acrobat application, select 'Sign Out', and then sign back into your Adobe account to refresh your authentication token.

Update Acrobat

Go to 'Help' > 'Check for Updates' in the top menu bar. Download and install any available updates, as Adobe frequently releases patches for connectivity bugs.

Check Mac Firewall

Open 'System Settings' > 'Network' > 'Firewall' > 'Options'. Ensure Adobe Acrobat is added to the list and set to 'Allow incoming connections'.

Disable Third-Party Security

Temporarily disable any third-party antivirus, VPNs, or network filtering software (such as Little Snitch) that might be intercepting or blocking Adobe's signature servers.

Troubleshoot Acrobat Account and Security Settings on Mac

Network Restrictions: If you are on a corporate network, your IT department may have blocked access to Adobe Cloud services. You may need to whitelist standard Adobe domains in your proxy settings.

Solution 2

Use the Acrobat Web Interface as a Workaround

If the desktop application continues to fail, you can bypass local software issues by using Adobe's web-based platform to send your document.

Efficient PDF Solution

Sign and Share PDFs Seamlessly with WPS Office

Avoid connection glitches and streamline your document workflow. WPS Office provides a lightweight, reliable built-in PDF reader and editor that allows you to easily add signatures and share documents without complex server dependencies.

1. Open your PDF: Launch WPS Office and click on the 'PDF' tab to open your document.
2. Access the Signature Tool: Navigate to the 'Fill & Sign' or 'Insert' tab on the top ribbon.
3. Create a Signature: Click 'Sign' to draw, type, or import an image of your personalized signature.
4. Apply and Share: Place the signature on the document, save your changes locally, and use the 'Share' button to email the finalized document directly to your recipients.

Lightweight, fast, and feature-rich PDF editing toolsFully compatible with standard Adobe PDF document formatsEasily add handwritten or digital signatures to any documentWorks smoothly offline and online across Mac, Windows, and mobile devices

microsoft office alternative - wps office

Frequently Asked Questions

Why does Adobe Acrobat say no internet connection when I am connected?

This usually happens when Adobe's specific background services are blocked by your Mac's firewall, a VPN, or third-party security software, preventing the app from reaching Adobe's cloud servers.

Can I use the 'Send for Signature' feature offline?

No. Sending a document for electronic signature requires an active internet connection to securely route the document through Adobe's cloud services to the recipients.

Does signing out of Adobe Acrobat fix connection errors?

Yes, signing out and signing back in is a highly effective troubleshooting step because it forces the application to refresh its authentication tokens and re-establish a connection with the server.

PDF Troubleshooting