SG Broadband Community

I had the Oxford/AstraZeneca vaccine last week. My arm was a bit sore for a few days afterwards, but that was the only side effect.

In the UK, we are still on schedule for all adults to have had their first vaccination by the end of July. The vaccine rollout is about the only thing that the British ...

I am disabling Kaspersky Internet Security before carrying out any speed tests, and have unticked NordVPN LightWeight Firewall for the NIC. Does QoS Packet Scheduler need to be ticked?

I have enabled LSO, and have reduced the number of RSS queues to 2 (as my laptop has 2 CPU cores), but the CPU is still being maxed out when I run speed tests. I am at a loss as to what else I can do now.

Apart from jumbo frames and LSO, the others are already enabled. I will try enabling LSO, but would jumbo frames work with a broadband connection? Would reducing the number of RSS queues from 4 to 2 also help?

Philip wrote:If your CPU is maxed out during tests that would definitely be the culprit, the Network adapter settings have to be examined more carefully, see which ones reduce CPU usage.

Thanks Philip. Any suggestions as to which ones are likely to affect CPU usage please?

The above did not really help - see https://www.speedtest.net/result/10300977161 and https://www.speedtest.net/result/10300969208.

The CPU on my laptop maxed out during the tests.

What I am going to try is increasing Receive Buffers from 512 to the maximum of 2048, and Transmit Buffers from 256 to the maximum of 1024.

digit.in/features/tech/tweak-network-adapter-properties-networking-ethernet-wifi-vpn-45243.html also recommends disabling Flow Control and Interrupt Moderation ...

You may want to increase the number of Send/Receive buffers in the Network Adapter properties. I wouldn't use Experimental TCP Wndow auto-tuning, it used to have some issues with LAN transfers and such.

The only other thing I could immediately think of is to check CPU/Network load in the Windows ...

That last one should have read Optimal, TCP Window Auto-Tuning experimental, MTU 1480.

I reset Winsock and TCP/IP, and then tried the following:

Windows default – https://www.speedtest.net/result/10296812773 and https://www.speedtest.net/result/10296818814
Optimal – https://www.speedtest.net/result/10296881418 and https://www.speedtest.net/result/10296885425
Optimal, TCP Window ...

Thanks Philip, I will give your suggestions a try. Should my laptop’s MTU be set to the same as my router’s MTU - this is 1480, as I have a PPPoE connection?

I would be very grateful for some help with improving my download speeds on my Windows 10 laptop. I have a 1 Gbps FTTH broadband connection, which has an average download speed of 900 Mbps. If I use a bootable Ubuntu USB stick on my laptop, I can consistently get download speeds of 800+ Mbps on a ...