Very slow loading Ethernet VS. Wifi. What's going on? =/

User Support Hub Install, Performance & Graphics
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I am acutally not sure whats going on. I have been using a good wifi card (pci) and have seen really good streaming and loading performance in FS2024. Then i switched to Ethernet instead, hoping that I would give better results. During this time I have also got faster internet: 1000/1000 instead of 500/500.

I’m not sure whats going on here, If it cause of that I tried the SU4 Beta, or if theres something going on with the servers the last days? The previews of the airplane models are loading so slow, small details at the time is added to the model, when its streamed. Also, the models of the aircraft when ready to fly is also very slow loading, jsut like the rest of the objects textures etc. It’s like its loading everything in chunks, and - yes, I have to wait. Same rolling cache size as before etc.

Im not sure whats going on. This has ruined the whole sim for me. I have tried newer ethernet drivers - no use. I have reinstalled the GPU drivers - no use. I have done what a common user can do, even trying som deeper settnings - to no use.

So, I have this modern Router, using its FAST LAN port to my computer. It’s a cat 5e cable (should be enough?). The lenght is 20 meters. Latest firmware of the router, etc etc.

What do you think has happend? Why did I get so great speeds with my modern Wifi-card (and external antenna) vs using the ethernet port? I though it would be the opposit. The port is running in 1000, so no problems there either. Could it be my a bit older motherboard, the B450-F (first gen), that dont have a good ethernet chipset? But when measuring the speed on lets say speettest there are not problems (but then I cant see any problems, just the speed).

Any suggestion what to try? I dont wanna go back to Wifi, and if truly feels silly that the Ethernet is working worse than my wifi. Have you heard about this before?

The CPU (5700X3D) seem to work much harder now, compared to when using Wifi. The CPU fan is revving like crazy. I have noticed that it gets a bit better when turning on live traffic an multiiplayer, but that’s not been an issue before. =(

I just tried to make a normal flight, but from the very start theres problem: Problem loading the map when zooming in on the aiport, slow loading of objects and textures on the map (and when “in” the game), cockpits not loading, or loading slow etc.

is something in the installation or configfiles corrupt or something, or is this a pure ehternet issue? It seem to work well in other games (but FS2024 is a data hog, as we all know).

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Cat 6 has much better bandwidth

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nämen hej igen!

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What do you get on ookla speed test?

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Around 800-850 mbps

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Ok. But the Cat 5e should be good for 1000mbps, from what Ive read. What the cause its better? =) It’s a new cable from my ISP.

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Look up cat 6 vs cat 5e on Internet. It will explain and you can see for yourself

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Also worth checking https://www.azurespeed.com/ as the MSFS uses Azure servers, if your latency is below 40ms you’ll notice it. Select it for your region and ensure that the correct region is set inside MSFS. The network cable may have an impact but I dont think so in this case. I’m on wifi and this is what I’m getting:

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Thank you. I will check this out. I just found (when reinstalling FS) that its quite slow as well, tbh. Its nowhere near 1000mpbs, but then … its MS servers so its maybe not a good reference. But something is surely off IN the game. It’s just like beeing back in FS2020 the first months, not any good memories at all… =P

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For a 1000/1000 Mbps (Gigabit) network, Cat6 will not give you any speed advantage over Cat5e — both fully support Gigabit Ethernet up to 100 meters. The main benefits of Cat6 are in future-proofing and signal quality, not raw speed at the gigabit level.

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Reinstalled, but same problem again. The data feed to the sim seems incredibly slow.

I cant be the only one with this problem ( i hope ). Any other suggestions?

Could some other files that has to do with the sim and the network has got corrupt in some way?

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I’m not a network expect, but I know enough to be very puzzled by this.

  • I think the fact that you get good sim performance over WiFi rules out your ISP and the servers the sim uses. The sim doesn’t care how the files get to your computer, so if WiFi is good, it’s not a problem with the sim files.

  • As for cables… Use Cat-6 Cables - While it is true that Cat-5e has sufficient theoretical bandwidth, there are other considerations - crosstalk, impedance mismatch, dropped packets, etc. My company always uses Cat-6 cabling in our installations, and we test each cable to make sure it is performing to spec. Cat6 cable construction is more resistant to problems.

That said, I suspect it’s the ethernet adapter. There’s more than raw transfer speed that can affect large packet data transfer latency.

  1. Open Device Manager. For your ethernet adapter:

Right-click → Properties → Advanced
(You may have a ‘Power Management’ tab. If you do, disable it.)

Check these settings:

  • Speed and Duplex - Just as the name suggests, this allows for selecting the desired speed and duplex of the network adapter; the default setting is usually auto negotiation. It is recommended to set the highest speed your adapter supports (Gigabit, if supported), full duplex.

  • Green Ethernet - Disable

  • Jumbo Frames - Using jumbo frames can help increase throughput and decrease CPU utilization on Gigabit LANs, however, the functionality and the same frame size needs to be supported by all devices on the network. That means you need to ensure that your router supports Jumbo Frames, and is set to the same size.

  • Selective Suspend - Disable

  • Flow Control - Disable

  • Force Suspend - Disable

  • Interrupt Moderation Rate - Disable

  1. Search ‘Network Connections’ - Right-click on your ethernet adapter.
  • Disable unnecessary network protocols: Under the Network Adapter Properties dialog, you can find a list of protocols currently in use. Each additional network client, service or protocol places additional overhead on system resources, and may introduce unnecessary network bindings and traffic. In many cases, only the following components are required for a standard TCP/IP based network:

-Client for Microsoft Networks - allows a computer to access resources on the MS network.
-File and Print Sharing for Microsoft Networks - necessary to share local folders
-Internet Protocol Version 4 (TCP/IPv4) - necessary logical connection between network devices.

These other services can usually be safely disabled without affecting connectivity:

-QoS Packet Scheduler - Quality of Service packet scheduler designed to control and prioritize IP traffic for various network services as a method of bandwidth management.
-Microsoft Network Adapter Multiplexor Protocol - kernel mode driver used for network card bonding.
-Microsoft LLDP Protocol Driver - Link Layer Discovery Protocol (LLDP) is a protocol for network devices to advertise their identity and neighbors, used for a network map.
-Link-Layer Topology Discovery Responder - kernel mode driver responsible for displaying the computer on a network map.
-Link-Layer Topology Discovery Mapper I/O Driver - used to discover other networked devices on a network map, and determine network bandwidth
-Internet Protocol version 6 (TCP/IPv6) - latest revision of the Internet Protocol, extending the v4 IP address limitation. There are some routers that require an IPv6 connection (even if you aren’t using IPv6) to operate correctly, so test functionality if you disable this.

Hope this helps.

2 Likes
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Hello, and thank you!

I have now changed some of the settings you mentioned (in the network adapter adv. settings), and well…I’ll post a screnshot when avaliable. Things feels much better now. I never new that FS2024 was THAT sensitive to different kind of settings - but even Ai (haha) told med this. I have also changed to Cloudflare DNS*es. Might have helped as well (i always do too many changes, so I dont know what helped….). But now things feels much smoother, and things (“ “ ) are actually loading normally!

I also noticed going from my fastest lan 2.5gbps port to the standard (1.0 gbps I guess) also was handled better. Neither the Ethernet NIC or the cable could handle 2.5 anyway so…

Than you once again.

1 Like
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My ethernet settings now (tell me if I should change anything more)

I also got some other info, so I have applied that info as well.

Just tell me if there’s anything else to change (back or to different setting)

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Good to hear that things have improved!

I would set ‘Speed and Duplex’ manually to 1Gb/s and Full Duplex.

As for the other settings, here’s an article that talks about many of them.

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Hi. I will have a look at that page for sure.

I tried to set the “flow” setting back to standard again, and immidietaly the problems were back. So its something with that setting and the intel ethernet chipset on the Asus B450-F that’s not a good combo. The rest of the settings - no clue.

Any settings that I have changed that you think I should switch back to standard/default?

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I don’t have any further advice, because (like I said) I’m not a network expert.
The changes I suggested were for troubleshooting, which of course means, change one thing, test, repeat.

I can tell you that I tried a lot of these ‘tweaks’ a few years and didn’t see any significant improvement in any metrics. But I wasn’t having the kinds of issues you are. I just like to tweak.

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Thank you. For me, going from flow on to off, and it made huge difference. I think i can change the other settings back to normal. I might get a more modern ethernet card as well (from what Ive read, the ethernet intel controller on the Asus b450-f is NOT made for the kind of constant high bit data stream that FS-series use). Have a nice week!

1 Like