I can access Form Recognizer from my local PC (Windows 10) using .NET SDK (package Azure.AI.FormRecognizer 3.1.1). But I cannot access the same instance of the Form Recognizer, from the Azure virtual machine (Ubuntu 20.04). The error says: Retry failed after 4 tries; Resource temporarily unavailable (myformrecognizertrial.cognitiveservices.azure.com:443). It looks like there is a DNS resolve issue. Is virtual machine not allowed to access azure services by default? What settings should I do?