Skip to main content
ExLibris

Knowledge Assistant

BETA
 
  • Subscribe by RSS
  • Back
    Aleph

     

    Ex Libris Knowledge Center
    1. Search site
      Go back to previous article
      1. Sign in
        • Sign in
        • Forgot password
    1. Home
    2. Aleph
    3. Knowledge Articles
    4. GUI "Failed to read reply" due to Symantec Endpoint Protection software

    GUI "Failed to read reply" due to Symantec Endpoint Protection software

    1. Last updated
    2. Save as PDF
    3. Share
      1. Share
      2. Tweet
      3. Share
    1. Description
    2. Resolution

     

    • Product: Aleph
    • Product Version: 20, 21, 22, 23
    • Relevant for Installation Type: Dedicated-Direct, Direct, Local, Total Care

     

    Description

    GUI users are sometimes getting the ”Failed to read reply” message.  We've looked at the article Failed to read reply" in GUI **MASTER RECORD** .  There are no error messages in the pc_server log and these users *can* sometimes connect to the pc_server OK.

    Resolution

    This was solved by adding the address of the ExL server to the Symantec Endpoint Protection software Allowed list on the PC.

    The transaction was most likely blocked at an application level filter, meaning something inside of the packets was triggering the block because Symantec and other endpoint protection solutions can block based on vulnerability signatures (similar to antivirus signatures), that happened to only match certain packets in our situation.

     

    Note:  though this happened with the Symantec software, it could presumably happen with other similar Endpoint Protection software.

     

     

     


    • Article last edited: 2-May-2017
    View article in the Exlibris Knowledge Center
    1. Back to top
      • GUI "Failed to connect to host" connecting with hostname; OK, with numeric IP
      • GUI "License limit exceeded"
    • Was this article helpful?

    Recommended articles

    1. Article type
      Topic
      Language
      English
      Product
      Aleph
    2. Tags
      1. contype:kba
      2. Prod:Aleph
    1. © Copyright 2025 Ex Libris Knowledge Center
    2. Powered by CXone Expert ®
    • Term of Use
    • Privacy Policy
    • Contact Us
    2025 Ex Libris. All rights reserved