It's all about the Software

It is user adjustable.
{^_^}

RTL dongle? Stop the RX, press "Select Radio" button in the menu bar, select the dongle, select a bandwidth of 2.4 Msps or less for best results. Some people think it works fine for them at 3 Msps. I've never seen an rtl dongle work at more than 2.4 Msps without dropping samples. That's ba...

Reduce the selected Pluto to the lowest possible sample rate that it supports. If that does not work there's likely nothing more that can be done.

{^_^}

Not with SDRC or anything else I know of. It speaks USB2. That won't go that wide.

{^_^}

HDR is a gaming or video playback thing. Turn it on for those activities and off for anything else, particularly tools using direct access to the video hardware rather than usual OS calls. In the first place it is probably not going to work. In the second place your eyes will not be able to apprecia...

What did you use for a USB to Ethernet dongle? Did you actually find one that works USB2 to 1G Ethernet? All the units I saw when I looked about a year ago were USB2 to 100M Ethernet. A Pluto on 100M Ethernet will use a huge percentage of "wire time", the time its signals are on the wire. ...

Are you VERY VERY sure that no samples are being dropped?
{^_^}

On a hunch - is it started with data flowing from the front end? If so stop it and see of that ungrays the MIDI settings.
{^_^}

Here is an interesting article regarding serial port over IP.

http://com0com.sourceforge.net/doc/UsingCom0com.pdf

{^_^}

Um, "reload" is also dangerous to your new data. Would an "are you sure?" question be a better solution?
{o.o}