SG TCP Optimizer 4.0 released

As with all previous versions, it supports all Windows versions from 9x, and we've added support not only for Windows 8/8.1, 2012 Server, 2012 Server R2, but also for the latest Windows 10 Technical preview. Version 4 includes PowerShell cmdlets for changing TCP/IP parameters, it adds a few new settings, and fixes a couple of issues with the Optimizer 3.x and older Windows versions.

If you experience any issues using the TCP Optimizer, we'd like to hear about them. The "Apply Settings" screen allows for backing up, and allows the user to "Create Log" of all the changes. This log file can be especially helpful to us in troubleshooting any issues you may experience with the program (it creates a "sg_log.spg" file in the TCP Optimizer directory).

TCP Optimizer v. 4 (last updated 2021-01-08)

Changes to the software are now listed in the revision history article here:

Previous updates:
- Optimizer is now aware of, reads and displays the current TCP/IP settings "template".
- Updated Congestion Control Provider command, added "CUBIC" and "NewReno" algorithms introduced with Windows 10 Creators Update.
- Changed RSS (Receive-Side Scaling) and RSC (Receive Segment Coalescing) settings to be applied globally.
- Fixed Chimney Offload command (made change global) and program now reads setting on startup.
- Changed default to modify all network adapters.
- Removed obsolete DCA (Direct Cache Access) setting.
- Program now reads most settings on startup.

Online documentation and revision history are available here:
TCP Optimizer Documentation and revisions

Please post any constructive feedback and bug reports in this thread.

The TCP Optimizer version 3.x will no longer be updated, version 4 is intended to replace it entirely.
Any posts asking questions about how to tweak your internet connection using the Optimizer should be posted in a separate thread, and will be deleted or moved from here. This thread is intended for feedback about the program and bug reports. Please try to be descriptive when reporting issues and include your Windows version.