cannot Acces to VM RDP from free-telecom but working from other telco provider

Gautier thibout (personal) 25 Reputation points
2023-02-03T22:33:11.9666667+00:00

I cannot connect my VM from my telco provider, #2 fiber operator in France. This is only working from time to time from this operator network.

On any other provider, (5G or other fiber provider) connection is ok !

do we have kind of filtering from Azure (EDR or other) on some Internet provider ?
is this due to free-telecom network ?

I did tracert and connectivity seem ok (up to azure enpoint ae102-0.icr02.dub08.ntwk.msn.net)

regards,
Gautier (microsoftees)

Azure Virtual Machines
Azure Virtual Machines
An Azure service that is used to provision Windows and Linux virtual machines.
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Accepted answer
  1. Gautier Thibout (MSFT) 75 Reputation points Microsoft Employee
    2023-02-07T18:22:29.15+00:00

    I can confirm this is indeed an ISV problem from Free-Telecom (www.free.fr ILIAD group) .
    My friend has no FW and have the same problem.
    ICMP connectivity is ok but standard 3389 port is blocked by free gateway.

    I did solved this problem changing RPP port on the VM.... I can also say that Bastion is a solution for accessing your VM from Free-Telecom on azure, but more expensive.

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  1. Yannic Graber 586 Reputation points MVP
    2023-02-06T07:55:11.3033333+00:00

    Hello @Gautier thibout (personal)

    I think it's most likely an ISP-Issue instead of Azure. They might filter your traffic. Have you already created a ticket at their side and asked, if something is blocking RDP?
    Also, does your friend have the same router at home? If so, this might be a source of the issue too. Feel free to provide some details about the model and let's check if there might be a setting.

    If this does answer your question, please feel free to mark it as the answer as a token of appreciation.