Dear Aerosoft Support,

I am experiencing an activation issue with the following products purchased through Aerosoft and installed via Aerosoft One:

FlightSim Studio 727-200 Passenger

FlightSim Studio Super 27 Expansion Pack

Both products were bought through Aerosoft One about already a year ago and had been working perfectly fine ever since.

After updating MSFS 2024 from SU4 to SU5, the Aircraft EFB requested license activation again. I entered the activation codes exactly as shown in Aerosoft One, but both activations fail with the error message:

"Access Denied"

I have already verified the activation codes multiple times and copied them directly from Aerosoft One.

I also already attempted the following troubleshooting steps without success:

Reinstallation of both products via Aerosoft One

Clearing the MSFS WASM cache

I already opened a ticket in Aerosoft One on Sunday, May 10th, but I have not received any response so far.

Please let me know how I should proceed from here.

I have the following information and documents available in case they are needed:

Aerosoft invoices for both purchases

Screenshots from Aerosoft One showing the activation codes for both products

Screenshots of the EFB activation error for both products

Aerosoft ticket number for my support request

Best regards,
Chris

Hello,

I've taken a quick look, and it looks like our reply to your ticket on Monday was rejected by your email provider/your provider was unavailable so you wouldn't have received an email response, however, the response should be there if you login to the helpdesk and view the ticket via the helpdesk. For the issue itself, we unfortunately are unable to reset FlightSim studio keys as they use their own activation servers. For assistance with FSS key resets, please contact the developers directly via the contact methods below.

• E-Mail: https://www.flightsim-studio.com/contact/

• Discord: https://discord.gg/thcrb5UQaf

 

Thank you very much for your help.
I didn’t realize that I could also find the messages in the helpdesk otherwise I would have checked there right away. Indeed, I was able to find your response there.
Yet, I’m a bit surprised that the related email was supposedly rejected by my provider, since all other emails from support@aerosoft.zendesk.com have come through just fine including the ones I just sent in reply to your latest helpdesk message.

Anyway, your response was available after logging into the helpdesk, so all is good now.

Following your recommendation, I’ll contact FSS and hope I’ll be able to get this resolved that way.

Best regards,
Chris

On 5/15/2026 at 3:39 AM, ChromedWings said:

--

Glad to hear you found it! I just closed out your ticket, and it looks like my reply did send this time, so it may have just been a temporary outage. Unfortunately, Zendesk doesn't provide us with in-depth email logs, so all I'm able to provide is that the mail server had a 550 status.

Hello Tom,

As recommended, I contacted FSS on their Discord, and together we managed to get my 727-200 Passenger and the Expansion Pack working again.
Thanks again for all the help, really appreciate it.

Best regards,
Chris