SG Broadband Community

Hey there Philip.

Been a few months since I messaged with you. I always forget about the Auto-Tune. I am forgetful about that one aspect in the newer Win versions. Either way my speed tests at Fast.com always give me between 800Mbps-1.1Gbps. I don't really need to tweak since I am getting full ...

My previous max speed was 25Mbps (was easy to figure out the numbers with that slow speed). As of yesterday I am now at 1Gig down/1Gig up. I did the TCP/iP Analyzer and here are my results:

« SpeedGuide.net TCP Analyzer Results »
Tested on: 2025.08.15 07:03
IP address: 50.42.xxx.xxx
Client OS ...

Newer versions of Windows don't let us tweak the RWIN setting, it is "auto-tuned" by the TCP/IP stack.
The TCP Optimizer "Optimal" settings are good set for Windows 10/11 if you want to try that. You should NOT have to reinstall the OS if you want to revert settings.

NIC optimization is useful ...

I keep forgetting about the "auto tuner". Thanks for the NIC link!

I've got something strange going on with my MTU. I need to do more testing and see what's going on. Will post again here with my findings.

If it's working you're ok. Windows 11 TCP/IP tuning is pretty well optimized to boot.


I am running into one glaring issue. My downlaod speeds are greatly varied...2-3.4 which averages out to be about my usual best at 2.7 :crazy: I think I am gonna have to reassess. Playing online games with ...

I had the same problem and also found the only fix to be reinstalling Window 11 Pro (24H2). Also used a program (don't remember what it was) to fix my stuck MTU which was at 1456? Not only did it not work it froze my MTU at that 1456 value I also made sure to disable any automatic background ...