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orkungedik's avatar
orkungedik
Copper Contributor
May 27, 2025
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smba.trafficmanager.net REQUEST_SEND_ERROR problem

Hi, I am developing a digital assistant. In the architecture there's a REST API server behind the Teams application. Both servers are located in same network. The problem I am facing that the reques...
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  • orkungedik's avatar
    orkungedik
    May 28, 2025

    Hi,

    I fixed the problem. The problem occurred because of high number of requests (every 1 sec) to smba.trafficmanager.net by calling statement below in the code, during REST API call period.

    await stepContext.context.sendActivity({ type: 'typing' });

    So, firewall thinks that it is an attack and blocks to send data to after a while. I recommend send this signal every 3 secs.

    Best regards,

    Orkun Gedik

Sayali-MSFT's avatar
Sayali-MSFT
Icon for Microsoft rankMicrosoft
May 28, 2025

Hello orkungedik,
Thank you for your inquiry about your Teams app development issue! To assist you better, could you please provide the following details? 

Reproduction Steps: Please share the steps you took to encounter the issue. 

Documentation Links: Any specific documentation you followed that relates to your problem. 

Teams Client Version: What version of the Teams client are you using? 

Code Snippets: Relevant code snippets that illustrate the issue. 

Manifest Package: If applicable, please share the manifest package for your app. 

This information will help us better understand the situation and provide a more accurate response. 

  • orkungedik's avatar
    orkungedik
    Copper Contributor
    May 28, 2025

    Hi,

    I fixed the problem. The problem occurred because of high number of requests (every 1 sec) to smba.trafficmanager.net by calling statement below in the code, during REST API call period.

    await stepContext.context.sendActivity({ type: 'typing' });

    So, firewall thinks that it is an attack and blocks to send data to after a while. I recommend send this signal every 3 secs.

    Best regards,

    Orkun Gedik

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