1742549 - Captive portal appears constantly in VPN

Status: RESOLVED INCOMPLETE

(Core :: Networking, defect)

Description

[[e-mail]]

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:94.0) Gecko/20100101 Firefox/94.0

Steps to reproduce:

Browse the internet with a VPN (Check Point Endpoint Security).

Actual results:

If I'm in the VPN I get constantly the "Captive portal" message.

Expected results:

The message doesn't appear.

Comment 1

[Kershaw Chang [:kershaw]]

Nihanth, could you take a look?
I am not sure what kind of log we need for debugging this.

Comment 2

[(inactive) Nihanth Subramanya [:nhnt11]]

Hi there, could you open the following URLs with and without VPN and share 1) the result (what's shown on the page) and 2) the state of the "lock" icon in the URL bar after the page finishes loading?

1. http://captive.apple.com/ (Apple's captive portal detection canonical URL, used by macOS)
2. http://detectportal.firefox.com/canonical.html (Firefox's captive portal detection canonical URL)
3. http://www.gstatic.com/generate_204 (Chrome's captive portal detection URL)

Comment 3

[Valentin Gosu [:valentin]]

I think it's most likely that Check Point Endpoint Security is inserting "something" into the html page.
It would be nice if you could record some logs when this happens using these instructions. Please add CaptivePortalService:5 to the module list if possible.
Thanks!

Comment 4

[Kershaw Chang [:kershaw]]

Close this because we don't have enough information.