Azure Translator TCP 443 timeout from hosting and personal PC — North Europe

Yuriy Rukov 0 Reputation points
2026-09-27T19:28:43.0933333+00:00

Hello,

I have an Azure Translator resource named schastlivyi-dom-translator in the northeurope region.

Networking for the resource is configured as All networks.

The problem is that TCP/HTTPS connections to Azure Translator endpoints time out.

Tested endpoints:

  • api.cognitive.microsofttranslator.com → 20.50.1.26
  • api-eur.cognitive.microsofttranslator.com → 20.50.1.26
  • northeurope.api.cognitive.microsoft.com → 52.146.133.3
  • schastlivyi-dom-translator.cognitiveservices.azure.com → 52.146.133.3

All TCP port 443 connections to these endpoints time out.

At the same time, general Microsoft connectivity works correctly:

  • www.microsoft.com → TCP 443 OK
  • TLS OK
  • HTTP 200

From my WordPress hosting server, the application returns:

cURL error 28: Connection timed out

Environment:

  • PHP 8.2.32
  • cURL 7.58.0
  • OpenSSL 1.1.1

My hosting provider Timeweb reproduced the same connectivity issue.

Their traceroute also shows packet loss on Microsoft network nodes, including:

be126.ibr02.ams30.ntwk.msn.net

They additionally confirmed that the problem is reproducible not only from the hosting server, but also from a separate personal computer.

Could you please check routing/connectivity to Azure Translator / Cognitive Services in the northeurope region and advise whether there is a known network issue or routing problem?

I can provide traceroute/MTR screenshots if needed.

Azure Translator in Foundry Tools

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  1. Yuriy Rukov 0 Reputation points
    2026-09-27T19:31:55.9566667+00:00

    Воспроизвели проблему с доступом к 20.50.1.26 и 52.146.133.3. При трассировке по 443 порту до 20.50.1.26 (см. скриншот 1). Наблюдаются значительные потери потери на узлах Microsoft, например: 

    be126.ibr02.ams30.ntwk.msn.net

    Также проверил доступность с личного компьютера - проблема также возникает промежуточных узлах. Рекомендуем обратиться в поддержку Microsoft для проверки с их стороны. Если при проведении диагностики проблемы выяснится, что она вызвана некорректной или отличной от ожидаемой работой сервисов нашего хостинга, техническая поддержка будет рада вам помочь

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