Bug 135754 - LibreOffice hangs at startup if a proxy is configured
Summary: LibreOffice hangs at startup if a proxy is configured
Status: NEW
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: LibreOffice (show other bugs)
(earliest affected) release
Hardware: x86-64 (AMD64) Windows (All)
: medium normal
Assignee: Not Assigned
Depends on:
Blocks: Network Performance
  Show dependency treegraph
Reported: 2020-08-14 10:38 UTC by Gerard De Wolf
Modified: 2023-05-04 14:08 UTC (History)
2 users (show)

See Also:
Crash report or crash signature:


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Description Gerard De Wolf 2020-08-14 10:38:03 UTC
Freshly installed Windows 10
Freshly installed LibreOffice, latest version
As long as no proxy is configured, LibreOffice startup is instantaneous.
However after configuring a proxy, startup hangs for up to 3 minutes (Windows wait cursor turning) on the startup screen before opening any application

Steps to Reproduce:
1.Install Windows 10 fresh
2.Install LibreOffice fresh
3.Configure a proxy in Windows (squid or other)
4.Connect to the Internet, making sure the proxy works correctly
5.Start up LibreOffice

Actual Results:
LibreOffice hangs for up to 3 minutes on the startup screen

Expected Results:
Startup is instantaneous

Reproducible: Always

User Profile Reset: Yes

OpenGL enabled: Yes

Additional Info:
I tried this with 2 proxies, of which:
- one is a Squid without authentication
- the second one is a proxy with authentication, owned by the mother company of the business I am working. No other details on software (if necessary, I suppose I can dig up the type of proxy server)
The result is similar with both proxies
Comment 1 Gerard De Wolf 2020-08-19 09:01:08 UTC
This phenomenon does not occur if you logon as an administrative user on Windows.
Only when logged on as a standard user does this happen.
Comment 2 Gerard De Wolf 2020-08-19 09:09:58 UTC
Problem already occurred in older versions too (v6.x.x)
The only version I found that (strangely enough) did not exhibit the problem was (x64))
Comment 3 roni.ijas 2020-11-12 10:45:19 UTC
I can confirm.

When Proxy is configured, LO takes ages to open. The time it takes to open depends on how many items is configured in Proxy Bypass list. You can test this with configuring Proxy to manual, then shortening the bypass list. With 0 items LO startup doesn't hang, with many items it takes over a minute.

Only version that doesn't have this issue is 6.0.7.

There is also a bug when changing the Proxy from System to Manual, you have to edit the fields before saving, otherwise the settings are not actually saved.
Comment 4 Timur 2021-03-17 07:50:36 UTC
Thanks for detailed resort but.. 
Three are bug 46014 and bug 33697.Even those are very old,no volunteer to work on that. 
Another bug is of little value. Please see to mark duplicate and add something from here that can be helpful (like this for Squid without authentication or logon as regular / admin user).
Comment 5 schregenb.u 2021-06-04 15:17:19 UTC
*** Bug 128993 has been marked as a duplicate of this bug. ***
Comment 6 Dieter 2021-07-07 15:05:08 UTC Comment hidden (obsolete)