RDC ISSUES

Hi Ale_rod1500 ,

When you mention using a DNS, what do you mean in particular? i.e. setting up a DNS on a home network or registering with a dynamic DNS server.

Thanks

Resolved, thank you so much.

We finally were able to make it work using Domain Name Server instead of IP addresses when creating and setup the VPN connections. Give it a try.

Hi All,

I am experiencing this issue with the latest iPad, OpenVPN connects effortlessly, Remote Desktop clocks and then gives the error 0x204. As with the others, when using WiFi in the office it works as well.

Others in the organisation with iPhones and iPads continue to have effortless access to the Remote Desktop

I'm having a very similar issue.  Was the above issue ever resolved? 

I'm trying to use Microsoft's Remote Desktop Client to connect to my Windows 10 PC via an OpenVpn connection from 2 different devices:  my Android phone and my iPhone 12 mini.

The Android version of the remote desktop client and the IOS version of the remote desktop client both work perfectly when using WiFi connections (from another network).

However, only the Android client can successfully connect with WiFi turned off (via its T-Mobile cellular connection). 

Turning WiFi off on the iPhone 12 mini returns Error code: 0x204 when I try to connect using T-Mobile's connection. 

As workarounds I've tried various permutations of using IP address, pc name, DDNS, user names, email address, but nothing works.

I'm trying to avoid opening any ports in my router.

P.S. I am getting the same exact behaviors on a second Windows 10 machine.

P.P.S.  I tried another experiment, this time using the iPhone 12 mini with only the (T-Mobile) cellular enabled as a hotspot connection for my WiFi Samsung tablet.  The Remote Desktop client on my Samsung Tablet was able to connect via OpenVPN to my Windows 10 PC (through T-Mobile using the iPhone 12 mini's hotspot).

My theory is the ios Remote Desktop client app is the culprit. 

Any thoughts?

Jeff

John_Spencer 

Sounds good, closing the issue for now. Happy holidays Ale_rod1500 

Good morning, thanks for your follow up and research, we found out that there is an issue with the latest version between IOS and VPN connectivity, with previous versions everything works perfectly, but with the most recent it doesn't work, we were able to make it work using domain name server instead of IP addresses which is weird because it should be able to work with both, we still are also researching on our side. Happy Holidays.

Hi Ale_rod1500 ,

The app engineering team does not have any guidance to provide related to your Remote Desktop issue at the time as it seems mostly related to accessing session hosts via VPN using T-Mobile network which is not an issue they have seen/delt with before.

Have you filed a support request for this issue yet? Hands-on debugging with our customer support team sounds like the next best step.

Furthermore, have you looked at Remote Desktop clients FAQ | Microsoft Docs. Specifically there is a section on "VPN doesn't work" which includes:

How can I test if VPN is working properly?

How do I configure L2TP or PPTP VPN connections?

Good morning, thanks for your prompt reply and yes, it is happening all the time, I mean, RD Client on T-Mobile is not working at all on any of the 5 new Ipads we just purchase for some executives. I have to insist: RD works perfectly when I am connected to WiFi within our network and also when using VPN on an external WiFi network but it doesn't work when there is no Wifi just the T-Mobile data network, which is when is most needed. The VPN connects fine but when RD is open the error shows.

The "old" Ipad works fine all the time in all scenarios described below. I have both here with me we can test at any moment.

Hi Ale_rod1500,

There shouldn't be anything specific to the RD client running on your old iPad's software vs your new iPad's software that would affect error code 0x204. Is this error reproducible? Or has it just happened a couple times?