2 hours ago, MikeH99 said:

Can't run MSFS24 kills my internet connection *sigh*.  I had that issue during SU1 but I got around it by running the program via xbox hub but now that doesn't work.  Really is a joke.

It kills your internet connection?? Do you mean it uses a lot of bandwidth and you have a slower connection ..? 
 

or does it literally somehow disable the internet connection when you run it - like does your router freeze or something? 

2 hours ago, JonathanC said:

It kills your internet connection?? Do you mean it uses a lot of bandwidth and you have a slower connection ..? 
 

or does it literally somehow disable the internet connection when you run it - like does your router freeze or something? 

Disables it. When program doesn't run back to normal. Tried everything I can google.

So did more testing - MSFS2020 loads fine but then when I actually start a flight and try and select airport/gate the world map doesn't load and the internet just word not allowedes itself.  Not a me problem something on the other end I'll just wait a day or try later tonight.

Edited March 8, 20251 yr by MikeH99

39 minutes ago, MikeH99 said:

Disables it. When program doesn't run back to normal. Tried everything I can google.

So did more testing - MSFS2020 loads fine then when I actually start a flight and try and select airport/gate the internet just word not alloweds itself.  Not a me problem something on the other end I'll just wait a day or try later tonight.

I hate to say this, but there is something wrong with your computer and it's not MSFS 2024.  And I come from a Computer Science and software developer background.  MSFS 2024 should in no way, "kill your internet connection."  If MSFS 2024 is disabling your internet connection and you can't even use other apps to access the internet while MSFS 2024 is running (ie. you can't use Chrome or Firefox or other apps to use the internet while MSFS 2024 is running), Windows is likely compromised on your computer or you have a problem with your router. In the most optimistic case, you may have installed some app or software that interferes and conflicts with MSFS 2024.  In the medium case scenario, your Windows is corrupted or there is something wrong with your router (or some problem that your ISP has with MSFS 2024).  In the worst case scenario, your computer has a virus and/or malware running on it.

I have read a lot of complaints about MSFS 2024 and I have never run into a post where MSFS 2024 is killing somebody's internet connection until I saw your post.  But from my knowledge of software development and how MSFS 2024 would be developed, it shouldn't terminate your internet connection at all, and I can only say there is something going on very wrong with your computer or your router.

Edited March 8, 20251 yr by abrams_tank

4 minutes ago, abrams_tank said:

I hate to say this, but there is something wrong with your computer and it's not MSFS 2024.  And I come from a Computer Science and software developer background.  MSFS 2024 should in no way, "kill your internet connection."  If MSFS 2024 is disabling your internet connection, Windows is likely compromised on your computer or you have a problem with your router. In the most optimistic case, you may have installed some app or software that interferes and conflicts with MSFS 2024.  In the medium case scenario, your Windows is corrupted or there is something wrong with your router (or some problem that your ISP has with MSFS 2024).  In the worst case scenario, your computer has a virus and/or malware running on it.

I have read a lot of complaints about MSFS 2024 and I have never run into a post where MSFS 2024 is killing somebody's internet connection until I saw your post.  But from my knowledge of software development and how MSFS 2024 would be developed, it shouldn't terminate your internet connection at all, and I can only say there is something going on very wrong with your computer or your router.

It is a known problem there is a FAQ on it which I tried what it recommends.  I'm not going to do a full reformat/re-install just for MSFS as every other game/app works on my PC fine.

1 minute ago, MikeH99 said:

It is a known problem there is a FAQ on it which I tried what it recommends.  I'm not going to do a full reformat/re-install just for MSFS as every other game/app works on my PC fine.

Do you have a link to the FAQ and the exact section in the FAQ?

I have never heard of MSFS 2024 terminating somebody's internet connection before and this is the first time I have read about it.  I haven't read about this at Avsim, Reddit, or the official MSFS forums. If you could link the FAQ and pinpoint the exact section in the FAQ (maybe copy and paste the text so we know which section you are referring to), that would be appreciated.

I'm not going to get into a roundabout on this I flushed my dns using command prompt and it's working again but slowly loading there's some weird stuff going on with MSFS and it's servers.

14 minutes ago, MikeH99 said:

I'm not going to get into a roundabout on this I flushed my dns using command prompt and it's working again but slowly loading there's some weird stuff going on with MSFS and it's servers.

You shouldn't need to flush your DNS to get MSFS 2024 working. That's very weird.

Are you using the Google Map mod, that allows MSFS to use Google map data?  That app had an issue in the past where if you didn't let the app close properly, it wouldn't revert the hosts file to its original form. That is an example of people using an add-on, and that add-on is modifying the hosts file of Windows, but because that app didn't close properly, it was unable to change the hosts file back, and then MSFS wouldn't work properly.  People complained that MSFS wasn't working and it was a bug with MSFS, but the problem was that Google map mod and its inability to revert the hosts file in the case where that Google map mod ended prematurely.

In any case, the fact that you have to flush your DNS to get MSFS 2024 working means there is probably something wrong with your computer, your router, or your ISP. 

Edited March 8, 20251 yr by abrams_tank

9 hours ago, BrammyH said:

Anyone had the endless spinner when choosing a flight off the world map? I've tried the "zoom all the way out" truck and it's not working.

 

I've had this many times in the past and also after SU1. Not every time I start but often. What helped me is going ´back´ (use esc)

and press fly again. Dont know why this helped me but then it would load

1 hour ago, hansb57 said:

I've had this many times in the past and also after SU1. Not every time I start but often. What helped me is going ´back´ (use esc)

and press fly again. Dont know why this helped me but then it would load

I've made the same experience.

9 hours ago, MikeH99 said:

Can't run MSFS24 kills my internet connection *sigh*.  I had that issue during SU1 but I got around it by running the program via xbox hub but now that doesn't work.  Really is a joke.

I have been similar problems and they started couple days ago so I think that is MSFS/Asobo who cause this problem. Hard to say what is the problem but they have all to time server or some other problems. Mayby some bugs some where - who knows but very odd problems anyway.

4 hours ago, abrams_tank said:

something wrong with your computer and it's not MSFS 2024

This is definitely correct. 2024 disabling your Internet connection would be software suicide. I mean it COULD attempt to reserve such a large amount of bandwidth for itself to run well that Windows has none left for any other purpose but it doesn't. 

It DOES have bandwidth options though like 2020 does in the data settings yes? 

Maybe something is not right there but again the software would not allow the user to disable what it actually needs to run in its own settings. 

4 hours ago, abrams_tank said:

The link to faq

Yes I would like to see this too. (excuse quote error it came up blank!) 

In ms2024 su1. I am getting real long load times or CTD when choosing an airport.  I  have 20 sceneries in Libraries from Drz Design feelthere FSDT etc in my 2924 library that day 2020 and a warning that this is not certified for 2024.  Should I disable all hose sceneries now to see why I am crashing my sim?

Edited March 8, 20251 yr by paulyg123

Concerning internet drop-outs, I asked an AI to provide context. I  specifically asked generically when it comes to Cloud based services as these conditions can happen and its not necessarily an issue on your end but how MSFS2024 is pushing data and its relationship with different ISP's. 

Here are the results and not sure this will help...

"What cloud access scenarios would cause home internet cache to fill up and disconnect your internet?"

When your home internet cache fills up and causes disconnections, it’s typically tied to how devices or applications interact with cloud services. Here are some cloud access scenarios that could lead to this issue:

1. **Heavy Cloud Syncing (e.g., Dropbox, Google Drive, OneDrive):**
   - If you’re syncing large files or a massive number of small files to a cloud storage service, the local cache on your device or router can get overwhelmed. Many sync clients maintain a local cache to track changes, and if your storage is limited or the sync process is poorly optimized, it might flood the cache. This can bog down your bandwidth, leading to timeouts or disconnects, especially if your router struggles to handle the traffic.

2. **Streaming or Buffering High-Bandwidth Content:**
   - Services like Netflix, YouTube, or cloud gaming platforms (e.g., GeForce Now) rely on caching chunks of data locally. If your connection is slow or unstable, these services might keep retrying to fetch data, filling up the cache on your device or router. A poorly configured Quality of Service (QoS) setting on your router could exacerbate this, choking other traffic and causing disconnects.

3. **Frequent Cloud Backup Operations:**
   - Automated backups (e.g., iCloud, Backblaze) that upload constantly changing data—like photos, videos, or system snapshots—can generate a lot of small, repetitive requests. If the backup client caches these requests locally before uploading and your internet speed can’t keep up, the cache might hit its limit, leading to dropped connections as the system struggles to clear the backlog.

4. **IoT Devices Overloading Cloud APIs:**
   - Smart home devices (e.g., cameras, thermostats) often ping cloud servers for updates or to send data. If you’ve got a bunch of these devices hitting the same network and their firmware is chatty, they can flood your router’s cache with outbound requests. Cheap routers with small memory pools might crash or disconnect under this load.

5. **VPN or Cloud Proxy Misconfiguration:**
   - Using a VPN or proxy routed through a cloud service can cache traffic locally before encrypting and sending it. If the VPN client is set to aggressive retry policies or you’re pushing too much data (e.g., torrenting), the cache could fill up, especially on devices with limited RAM. This might force your router to drop the connection to reset.

6. **DNS Resolution Overload:**
   - Cloud-reliant apps often hammer DNS servers to resolve domains. If your router’s DNS cache is small and you’re hitting a ton of cloud endpoints (think ad-heavy sites or apps phoning home), it might overflow. This can stall requests, making it feel like your internet’s disconnected when it’s really just choking on unresolved lookups.

### Why This Disconnects Your Internet
Most home routers have limited memory for caching—sometimes as little as a few MB. When the cache fills up (whether it’s DNS, NAT tables, or packet buffers), the router might drop connections to free resources. Alternatively, your ISP might throttle you if they detect sustained high traffic, or your modem could reset if it overheats from the load.

### How to Spot and Fix It
- **Check Router Logs:** Look for errors like “NAT table full” or “cache overflow.”
- **Monitor Bandwidth:** Tools like GlassWire or your router’s traffic stats can show if a cloud service is hogging your connection.
- **Solutions:** Increase router cache size (if adjustable), limit sync/upload rates in cloud apps, upgrade your router, or tweak QoS to prioritize critical traffic.

If you’ve got a specific setup in mind (e.g., “I’m using Google Drive and a cheap TP-Link router”), let me know, and I can dig deeper!

 

...and specific information related to DNS servers and MSFS2024.

"How does MSFS 2024 handle DNS servers to resolve domains?"

Microsoft Flight Simulator 2024 (MSFS 2024) relies heavily on cloud-based streaming to deliver its vast world, real-time weather, and other dynamic assets to your local device. While the game itself doesn’t explicitly "handle" DNS servers in a way that’s exposed to the user, its underlying network architecture uses DNS resolution as part of its communication with Microsoft’s Azure-based cloud infrastructure. Here’s how this likely works, based on standard networking practices and the game’s known behavior:

### How MSFS 2024 Uses DNS
1. **Cloud Asset Delivery:**
   - MSFS 2024 streams scenery, aircraft data, and other content from Azure servers. To connect to these servers, the game client (running on your PC or Xbox) needs to resolve domain names (e.g., `*.flightsimulator.com` or Azure-specific endpoints like `*.azureedge.net`) into IP addresses. This is where DNS comes in.
   - The game doesn’t maintain its own DNS server list; instead, it relies on your system’s configured DNS settings (usually your ISP’s DNS or a public one like Google’s 8.8.8.8, unless you’ve customized it).

2. **System-Level DNS Resolution:**
   - On Windows or Xbox, MSFS 2024 uses the operating system’s TCP/IP stack to perform DNS lookups. When the game initiates a request to fetch data (say, photogrammetry for New York City), it sends a query through your network adapter, which forwards it to the DNS server specified in your network settings.
   - For example, if your DNS is set to 1.1.1.1 (Cloudflare), your system queries that server to resolve the domain, gets an IP back, and MSFS 2024 uses that IP to establish a connection.

3. **Azure CDN and Dynamic IPs:**
   - Microsoft leverages Azure’s Content Delivery Network (CDN) to distribute MSFS 2024 assets globally. These CDNs use domain names that resolve to different IPs based on your location, ensuring you connect to the nearest server for lower latency. This process, called geo-DNS or anycast routing, is handled transparently by Azure’s DNS infrastructure.
   - The game likely hits multiple domains behind the scenes (e.g., for map tiles, weather data, or multiplayer traffic), and each resolution depends on your DNS server’s speed and reliability.

4. **Fallback and Redundancy:**
   - If a DNS query fails (e.g., your primary DNS server is down), your system typically falls back to a secondary DNS server (if configured). MSFS 2024 doesn’t appear to have its own hardcoded DNS fallback mechanism—any issues here would manifest as connection errors or long loading times, which players have reported during server overloads (like at launch in November 2024).

### Potential DNS-Related Issues in MSFS 2024
- **Server Overload and DNS Load:**
  - During high-traffic periods (e.g., launch day), the sheer volume of players can overwhelm not just the game servers but also the DNS infrastructure resolving Azure domains. If the authoritative DNS servers for Microsoft’s domains get hammered, resolution delays could slow down or halt your connection to the game’s assets.
  - Players have reported long initial loading times, partly attributed to server requests, which include DNS lookups as the first step.

- **Local Cache Overload:**
  - Your router or device maintains a DNS cache to avoid repeated lookups for the same domains. If MSFS 2024 queries a ton of unique subdomains (common with CDNs), this cache could fill up, especially on low-end routers. While this wouldn’t disconnect your internet outright, it might stall the game until the cache clears or refreshes.

- **ISP or DNS Misconfiguration:**
  - If your ISP’s DNS servers are slow or block certain domains (unlikely but possible), MSFS 2024 might struggle to connect. Switching to a faster public DNS (e.g., Google’s 8.8.8.8 or Cloudflare’s 1.1.1.1) could help, as some players have noted improved performance after doing so.

### Does MSFS 2024 Specify DNS Servers?
- There’s no evidence that MSFS 2024 hardcodes or specifies its own DNS servers. Unlike some online games that might embed fallback IPs or custom DNS settings, MSFS 2024 relies on your system’s defaults. This keeps it flexible but also means it’s vulnerable to local network issues.

### Practical Implications
- **Bandwidth and DNS:** The game’s high bandwidth demand (up to 180 Mbps in dense areas, per alpha tests) isn’t directly tied to DNS, but slow resolution can delay the start of data streaming, making it feel like a bottleneck.
- **Troubleshooting:** If you’re seeing connection issues, flushing your DNS cache (`ipconfig /flushdns` on Windows) or switching DNS servers might help rule out resolution problems. Community forums have suggested this as a fix for some loading hangs.

### Bottom Line
MSFS 2024 doesn’t "handle" DNS servers itself—it delegates that to your operating system and network stack, which resolve domains to connect to Azure’s cloud services. The process is standard but critical, given the game’s reliance on real-time streaming. Any DNS hiccups (slow servers, cache issues, or network misconfigs) can disrupt your experience, though they’re unlikely to fill your internet cache enough to disconnect you—that’s more about bandwidth saturation or router limits, as I covered earlier.

If you’re digging into a specific DNS-related problem with MSFS 2024, toss me the details, and I’ll zero in further!

If you live in Germany as I do and are experiencing bandwidth problems like I had, let me show you how I solved them.
I came across this thread after becoming extremely frustrated because MSFS 2024 either wouldn't load scenery at all or would load it extremely slowly. I initially thought Microsoft and Asobo were to blame. I never imagined that changing my DNS lookup server from Deutsche Telekom to Cloudflare's DNS Server could solve the problem.
I have a router with a bandwidth display. While using Deutsche Telekom's DNS, only a small portion of my available bandwidth was being used by MSFS 2024. After changing to Cloudflare's server, the simulator immediately used my full bandwidth. When I switched back to Telekom, the same problem returned instantly.
On the MSFS forum, some users suggested changing the router settings to use the Cloudflare server. However, I had concerns about forcing all DNS lookups in my network through an unfamiliar server, which is exactly what happens when setting a fixed IP address as the DNS server in your router settings.
Instead, I modified only the network adapter settings on my Windows 11 machine, setting Cloudflare's DNS servers (1.1.1.1 and 1.0.0.1) as primary and alternative. This way, only my gaming PC uses Cloudflare's DNS while the rest of my devices continue using Deutsche Telekom's servers.