I've been playing with the TCPIP settings in Windows 8.1. I've changed the default settings in mine and found minor improvements. Mostly in the stability of sustaining consistant flow, packet loss and retransmissions. Windows 8 is very good out of the box, unlike Windows XP. Packet loss maybe attributed to Compound TCP (CTCP) which is a newer congestion control method that increases the TCP send window more aggressively for broadband connections (with large RWIN and BDP). CTCP attempts to maximize throughput by monitoring delay variations and packet loss. This may have improved the packet loss I had. Retransmit timeout (RTO) determines how many milliseconds of unacknowledged data it takes before the connection is aborted. The default timeout for Initial RTO of 3 seconds can usually be lowered for low-latency modern broadband connections (unless you're in a remote location). I had no issues setting it to 600. If you have an issue connecting to sites increase the time. It's limit is 300 on the bottom. I experienced connectivity on some sites, so I upped it to 600. Works good for my ISP. Receive Segment Coalescing (RSC) allows the NIC to coalesce multiple TCP/IP packets that arrive within a single interrupt into a single larger packet (up to 64KB) so that the network stack has to process fewer headers, resulting in a 10% to 30% reduction in I/O overhead depending on the workload, thereby improving performance. Receive Segment Coalescing (RCS) is able to collect packets that are received during the same interrupt cycle and put them together so that they can be more efficiently delivered to the network stack. This can significantly increase the amount of traffic that can be handled without severely impacting the CPU. Non Sack Rtt Resiliency (Windows 8.1) Enables/Disables RTT resiliency for non SACK clients. So if you feel like experimenting with your TCPIP setting, you can apply these changes quite easily and revert as easy if you find issues by appling them. Use this command to see what you have before implemeting any changes so you can revert back to your current settings. netsh int tcp show global My current settings that work well for me. TCP Global Parameters ---------------------------------------------- Receive-Side Scaling State : enabled Chimney Offload State : enabled NetDMA State : disabled Direct Cache Access (DCA) : disabled Receive Window Auto-Tuning Level : disabled Add-On Congestion Control Provider : ctcp ECN Capability : enabled RFC 1323 Timestamps : disabled Initial RTO : 600 Receive Segment Coalescing State : enabled Non Sack Rtt Resiliency : enabled Max SYN Retransmissions : 2 Oh also when you enable Chimney Offload State, don't enable Direct Cache Access (DCA). One or the other not both. You can do some before and after result tests here. Use the same test to determine the affects of your changes. ispgeeks.com myspeed.pathcom.com myspeed.visualware.com (need to add exception rules to JAVA, in Waterfox for sure) I have 25Mbps capped down and 2Mbps capped up. Ping 9ms. Not generous to the up speed. speedtest.net/my-result/4017129862 A quiet day here. LOL. Enjoy.