502 Bad Gateway Error When Accessing APIs in BigBlueButton

[aryan shaheb]

I can see the API Mate and the list of APIs, but when I click on any API, I receive the error: '502 Bad Gateway nginx'. Could you please advise on what and where I need to check to resolve this issue?

On our hosted BigBlueButton server, we are seeing the following message: 'Welcome to nginx! If you see this page, the nginx web server is successfully installed and working. Further configuration is required.

Thanks,

Aryan

[224CS1001 PRINCE SONI]

Same issue on the bigbluebutton 3.0 version. Did you happen to find any solution?

[Ghazi TRIKI]

Hello,

It looks like bbb-web is not running.

Can you check the services status with "sudo bbb-conf --status"?

Thanks,

Ghazi

[Zibo Умм Латифа]

Subject:

Critical issue: BigBlueButton microphone repeatedly disconnects during live sessions (multiple users)

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Message:

Hello BigBlueButton Support Team,

I am an administrator of a MoodleCloud site that uses BigBlueButton for live classes, and we are experiencing a critical and recurring microphone issue during live sessions.

Issue description:

During live classes, the microphone repeatedly disconnects and reconnects automatically. This affects both teachers and students and occurs across multiple courses and groups.

Observed behavior:

• When a participant (teacher or student) starts speaking, their microphone begins to turn on and off repeatedly.

• If the participant clicks the microphone button several times attempting to fix the issue, the audio session appears to enter a loop or lock state.

• After rejoining the session, the microphone may temporarily stabilize, but the same behavior then occurs with the next speaker.

• The issue seems to move from one active speaker to another.

Scope of the issue:

• Affects multiple teachers and students

• Occurs in different courses and groups

• Happens on different devices and networks

• Cameras are often disabled, but the issue persists

• The behavior is consistent with WebRTC audio reconnection or server-side audio instability

Based on these observations, this does not appear to be a local device or browser configuration issue, but rather a BigBlueButton audio server stability problem.

This issue significantly disrupts live teaching and communication during lessons.

We kindly ask you to investigate the audio service stability on the BigBlueButton side and advise on possible causes or solutions.

Please let us know if you require logs, session IDs, timestamps, or any additional information.

Thank you for your assistance.

Kind regards, Dilziba

MoodleCloud Administrator 

https://fadelcenter.moodlecloud.com/login/index.php

[224CS1001 PRINCE SONI]

Thanks for replying,
I checked and all the services including bbb-web is working just fine.