B450M-HDV R4.0 LAN speed question

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   GOOD DAY EVERYONE!!!

On the ASRock B450M-HDV R4.0 motherboard, the network card shows an outgoing speed that's almost 2 times lower than the incoming speed, but the speeds should be equal. The cable is fine. On one PC (configuration in the profile) it's 960 vs 940 Mb/s.

I have no idea what to do?!

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nobana1 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: Yesterday Location: 瞿邽郇瞿郕 Status: Offline Points: 90	Post Options Post Reply Quote nobana1 Report Post Thanks(0) Quote Reply Topic: B450M-HDV R4.0 LAN speed question Posted: Yesterday at 6:05pm
	GOOD DAY EVERYONE!!! On the ASRock B450M-HDV R4.0 motherboard, the network card shows an outgoing speed that's almost 2 times lower than the incoming speed, but the speeds should be equal. The cable is fine. On one PC (configuration in the profile) it's 960 vs 940 Mb/s. I have no idea what to do?!

Xaltar Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 16 May 2015 Location: Europe Status: Offline Points: 43803	Post Options Post Reply Quote Xaltar Report Post Thanks(0) Quote Reply Posted: Yesterday at 6:33pm
	I am not sure I understand what you are asking here. Incoming speeds from ISPs are almost always much higher than outgoing. Internal LAN performance should be closer when it comes to incoming and outgoing (between 2 local PCs on the same network). If you have an issue with a local network then make sure you are using a proper CAT6 ethernet cable not a CAT5. A CAT5e cable should also work fine as it tops out at 1000mb/s, it should be printed on the cable itself. With CAT 5e however you have no headroom and any damage on the cable or an overly long cable run will cause the system to auto negotiate to 100mb/s. Make sure your LAN adapter is set to "Auto negotiate" under it's Duplex settings. Let me know if any of that helps.


nobana1 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: Yesterday Location: 瞿邽郇瞿郕 Status: Offline Points: 90	Post Options Post Reply Quote nobana1 Report Post Thanks(0) Quote Reply Posted: Yesterday at 6:55pm
	On PC 1, the download speed is 961 Mbps and the upload speed is 952 Mbps. PC 2 is equipped with a high-speed network adapter—the speed reaches 961, but it plateaus there (it won't go any higher).

nobana1 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: Yesterday Location: 瞿邽郇瞿郕 Status: Offline Points: 90	Post Options Post Reply Quote nobana1 Report Post Thanks(0) Quote Reply Posted: Yesterday at 6:56pm
	My network adapter is set to "Auto-negotiation" in the duplex settings.

nobana1 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: Yesterday Location: 瞿邽郇瞿郕 Status: Offline Points: 90	Post Options Post Reply Quote nobana1 Report Post Thanks(0) Quote Reply Posted: Yesterday at 7:01pm
	On PC 1, the download speed is 961 Mbps and the upload speed is 952 Mbps. PC 2 is equipped with a high-speed network adapter; the speed reaches 654 Mbps but stabilizes at that level (it does not go any higher).

nobana1 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: Yesterday Location: 瞿邽郇瞿郕 Status: Offline Points: 90	Post Options Post Reply Quote nobana1 Report Post Thanks(0) Quote Reply Posted: Yesterday at 7:20pm
	Booted from a flash drive with a clean install of Windows 10 — speeds are 943/897 — so the network card is fine; something at the software level is throttling the speed.

Xaltar Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 16 May 2015 Location: Europe Status: Offline Points: 43803	Post Options Post Reply Quote Xaltar Report Post Thanks(0) Quote Reply Posted: Yesterday at 7:55pm
	Great, so the adapter itself is working as it should. All you can do then is make sure you don't have any antivirus, firewall etc that is interfering with your speed. Check in (task manager -> Performance -> "open resource monitor") under the network tab and see what applications are hogging bandwidth. Identify the offending applications and remove them if unneeded. Torrent clients, firewalls, antivirus/antimalware apps etc all can eat up bandwidth and result in slower than expected benchmark results.


nobana1 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: Yesterday Location: 瞿邽郇瞿郕 Status: Offline Points: 90	Post Options Post Reply Quote nobana1 Report Post Thanks(0) Quote Reply Posted: 1 hour 9 minutes ago at 6:57pm
	Everything seems fine there! I tried a few commands I found in tips online, but nothing helped! People are suggesting either reinstalling the system over the existing one or starting from scratch—but that’s not an option! I have too many accounting programs installed.

Xaltar Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 16 May 2015 Location: Europe Status: Offline Points: 43803	Post Options Post Reply Quote Xaltar Report Post Thanks(0) Quote Reply Posted: 53 minutes ago at 7:13pm
	Your hardware isn't the issue, that I could have tried to help with but trying to identify a software caused issue on an old Windows installation is almost impossible remotely. I would start by trying to fully remove your LAN drivers and installing the default windows ones (like the ones used in your clean install test). This forum thread might be helpful: https://community.osr.com/t/driver-store-clean-uninstallation-and-installation/57449/5 It talks about how to fully remove problematic drivers. You can also run Command Prompt as Administrator then run: ipconfig /flushdns In device manager under the "view" dropdown menu tick the "show hidden devices" box. Expand your network adapter tree and remove all the hidden (greyed out) devices listed. If that doesn't help then I am afraid the only "fix" is to perform a clean installation. Good luck