ERPNext Print Designer Print Delay Issue 1-2 Minutes

[Usman-Kanz]

Information about bug

I am using VirtualBox with Ubuntu Server 24.04.1 for running ERPNext.

The Print Designer uses WkHtmlToPDF with patched Qt, which I already have installed.

WkHtmlToPdf: wkhtmltopdf 0.12.6.1 (with patched Qt)

Do you have any idea what the issue might be?

ERPNext.Print.Designer.Print.Delay.Issue.mp4

Module

other

Version

ERPNext: v15.53.0 (version-15)
Frappe Framework: v15.56.1 (version-15)
Print Designer: v1.5.1 (main)
WkHtmlToPdf: wkhtmltopdf 0.12.6.1 (with patched Qt)

Installation method

manual install

Relevant log output / Stack trace / Full Error Message.

[Usman-Kanz]

https://discuss.frappe.io/t/erpnext-print-designer-print-delay-issue-1-2-minutes/146642/2

[DipenFrappe]

@maharshivpatel

[Usman-Kanz]

@maharshivpatel

Hi Dipen,

I found the solution, but I don't know whether it's a temporary or permanent one.

The below 2 commands worked for me.

1. cd frappe-bench
2. sudo sysctl -w net.ipv6.conf.all.disable_ipv6=1
3. sudo sysctl -w net.ipv6.conf.default.disable_ipv6=1

Btw what are the cons of disabling ipv6?

Also any other similar solution?

Screen.Recording.2025-05-06.222701.mp4