Is there a slow LAN connection on one of my computers?
Is there a slow LAN connection on one of my computers?
Do you make or model motherboards? Run "ipconfig /all" (without quotes) from Command Prompt and post the results here. You can just copy and paste without typing them out. Are both your network cards built into the board, or are they installed using PCIe? Make sure only one card is turned on at a time. Also turn off any wireless adapters unless you really need them. Just use one of these two cards if you're allowed to do that.
Thanks for staying with me here.. 1 Yes, both ethernet adapters are built into the motherboard - ASRock x399 Phantom - (see more specs of the problem computer (the Threadripper) from my signature) 2 Ok, making sure only the one adapter is enabled 👍 3 however, you will notice I use NordVPN and Virtualbox, and they both create virtual adapters - that hasn't changed in months, so it didn't impact the speeds before.. I've switched off NordVPN - slightly faster but still topping out at 40MB/s 4 output of ipconfig below (I've blanked out some sensitive info) Windows IP Configuration Host Name . . . . . . . . . . . . : xxxxxxxxxxxxxxxxx Primary Dns Suffix . . . . . . . : Node Type . . . . . . . . . . . . : Hybrid IP Routing Enabled. . . . . . . . : No WINS Proxy Enabled. . . . . . . . : No DNS Suffix Search List. . . . . . : home Ethernet adapter Ethernet 2: Connection-specific DNS Suffix . : home Description . . . . . . . . . . . : Intel® I211 Gigabit Network Connection Physical Address. . . . . . . . . : xxxxxxxxxxxxxxxxx DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes IPv6 Address. . . . . . . . . . . : xxxxxxxxxxxxxxxxx(Preferred) Temporary IPv6 Address. . . . . . : xxxxxxxxxxxxxxxxx(Preferred) Link-local IPv6 Address . . . . . : xxxxxxxxxxxxxxxxxPreferred) IPv4 Address. . . . . . . . . . . : 192.168.2.60(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.255.0 Lease Obtained. . . . . . . . . . : 18 January 2023 12:47:18 Lease Expires . . . . . . . . . . : 19 January 2023 12:47:17 Default Gateway . . . . . . . . . : xxxxxxxxxxxxxxxxx 192.168.2.1 DHCP Server . . . . . . . . . . . : 192.168.2.1 DHCPv6 IAID . . . . . . . . . . . : 393250242 DHCPv6 Client DUID. . . . . . . . : xxxxxxxxxxxxxxxxx DNS Servers . . . . . . . . . . . : xxxxxxxxxxxxxxxxx 8.8.8.8 1.1.1.1 xxxxxxxxxxxxxxxxx NetBIOS over Tcpip. . . . . . . . : Enabled Connection-specific DNS Suffix Search List : home Ethernet adapter NORDVPN: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : TAP-NordVPN Windows Adapter V9 Physical Address. . . . . . . . . : xxxxxxxxxxxxxxxxx DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes Ethernet adapter VirtualBox Host-Only Network: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : VirtualBox Host-Only Ethernet Adapter Physical Address. . . . . . . . . : xxxxxxxxxxxxxxxxx DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes Link-local IPv6 Address . . . . . : xxxxxxxxxxxxxxxxx(Preferred) Autoconfiguration IPv4 Address. . : xxxxxxxxxxxxxxxxx(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.0.0 Default Gateway . . . . . . . . . : DHCPv6 IAID . . . . . . . . . . . : xxxxxxxxxxxxxxxxx DHCPv6 Client DUID. . . . . . . . : xxxxxxxxxxxxxxxxx DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1 fec0:0:0:ffff::2%1 fec0:0:0:ffff::3%1 NetBIOS over Tcpip. . . . . . . . : Enabled Wireless LAN adapter Local Area Connection* 8: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Microsoft Wi-Fi Direct Virtual Adapter Physical Address. . . . . . . . . : xxxxxxxxxxxxxxxxx DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes Wireless LAN adapter Local Area Connection* 10: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Microsoft Wi-Fi Direct Virtual Adapter #2 Physical Address. . . . . . . . . : xxxxxxxxxxxxxxxxx DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes Wireless LAN adapter WiFi: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : home Description . . . . . . . . . . . : Realtek 8822BU Wireless LAN 802.11ac USB NIC Physical Address. . . . . . . . . : xxxxxxxxxxxxxxxxx DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes Ethernet adapter Bluetooth Network Connection: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Bluetooth Device (Personal Area Network) Physical Address. . . . . . . . . : xxxxxxxxxxxxxxxxx DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes
Check your problem computer by turning off IPv6. Look at the list on the normal computers to see what their addresses are. Is that router/gateway really 192.168.2.1? The slow one might be using 192.168.2.60 for its IP address - is that okay? Are the other three getting a DHCP IP like 192.168.2.4 or something similar within the right range? What kind of router do you have and what model? Check the router's logs if they exist to see more clues. Also, look at the list of all devices connected to the router. Maybe the slow one is different in some way compared to the others.
I turned off IPv6 - now I get up to 50MB/s! The gateway and router are at 192.168.2.1 (the wifi router connected to my switch). Every computer has a fixed IP like 192.168.2.10 or .20, etc. My DHCP gives out addresses from 150 to 250. I made sure no one picks random IPs in that range. The router is a BT Hub v6 - maybe it has an IPv6 option? I'll check the logs and see what else is connected to it too. Let me know if you have other tips or suggestions! Thanks so much!
Hi again, I've not moved much forward with this thing, unfortunately. The ubuntu live USB didn't show up like it should because I couldn't get in to the windows shares. I still don't really know why that is. In addition, my Bluetooth connection has started taking 2-3 seconds to connect... so at the moment I'm worried if this could be related to a failing motherboard perhaps? Is there any way of testing or confirming this? Many thanks..