After the issues with DSIM in my prior post, this is becoming normal for Microsoft to introduce issues in each release.
I had terrible throughput via wireless. Upgraded/downgraded drivers (Intel 7265ac adapter). Tried everything. Then came across this:
Fix: Slow Wifi Issues After Installing Creators Update
Specifically, “Method 1: Disabling Receive segment coalescing (RSC) on your Wireless Adapter”. Feel free to read more here from Microsoft.
All that said, it was the root cause and disabling RSC resolved the issue.
Summarized steps (borrowing from the linked site above; refer to their site for screenshots):
- Launch an elevated Command Prompt
- Type powershell Get-Netadapter and note down the value under Name for your Wifi.
- Then type, powershell Get-NetAdapterRsc when you do this it will show you the current values, if it is False, then it is already disabled
- If it is True, then disable it by typing powershell Disable-NetAdapterRsc -Name WiFi
Replace the value for -Name with the name of your Wifi.