Crashed driver ethernet. Win 25h2 ver 5.3.0

[cumsomolec]

Launching a torrent causes the Ethernet driver to fail. Cured by rebooting the PC.
The error does not appear immediately, but rather after 5–50 minutes of operation. The application logs contain no reference to a problematic library or specific error.
The Windows system log also shows no error, only a notification regarding the loss of connection to the DNS servers.
A quick search did not yield any reports of a similar issue.
This problem does not occur when running other applications (Steam, ExitLag, browsers, etc.).

(I) 2026-10-30T01:40:47 - Successfully listening on IP. IP: "::1". Port: "UDP/1949"
(N) 2026-10-30T01:40:47 - Torrent restored. Torrent: "Cyberpunk.2077.GOG.Rip-InsaneRamZes"
(I) 2026-10-30T01:40:47 - IP geolocation database loaded. Type: DBIP-Country-Lite. Build date: Thu Oct 1 05:36:12 2026.
(I) 2026-10-30T01:40:47 - Could not find the executable file "python3" in the PATH environment variable. PATH: "C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\WINDOWS\System32\OpenSSH\;C:\Program Files\NVIDIA Corporation\NVIDIA App\NvDLISR;C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common;C:\Program Files\dotnet\;C:\Users\***\AppData\Local\Programs\Python\Launcher\;C:\Users\Danil\AppData\Local\Microsoft\WindowsApps;;C:\Users\Danil\AppData\Local\Programs\Fiddler;C:\Users\Danil\.dotnet\tools"
(I) 2026-10-30T01:40:47 - Unable to find executable file 'python' in PATH environment variable. PATH: "C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\WINDOWS\System32\OpenSSH\;C:\Program Files\NVIDIA Corporation\NVIDIA App\NvDLISR;C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common;C:\Program Files\dotnet\;C:\Users\***\AppData\Local\Programs\Python\Launcher\;C:\Users\Danil\AppData\Local\Microsoft\WindowsApps;;C:\Users\Danil\AppData\Local\Programs\Fiddler;C:\Users\Danil\.dotnet\tools"
(I) 2026-10-30T01:40:47 - Python executable found. Name: "C:\Users\***\AppData\Local\Programs\Python\Python314\python.exe". Version: "3.14.5"
(I) 2026-10-30T01:40:48 - External IP address detected. IP: "***"
(W) 2026-10-30T01:43:27 - Port forwarding failed. Protocol: UPnP. Message: "could not map port using UPnP: no router found"
(W) 2026-10-30T01:43:27 - Port forwarding failed. Protocol: UPnP. Message: "could not map port using UPnP: no router found"
(N) 2026-10-30T01:44:39 - qBittorrent completion started

ver 5.3.0
Qt: 6.11.2
Libtorrent: 1.2.20.0
Boost: 1.86.0
OpenSSL: 3.6.5
zlib: 1.3.2
Lua: 5.5.0
LuaBridge: 3.0
qBittorrent.json
(file rename qBittorrent.ini)

UPD
The issue is partly hardware-related and stems from an outdated Realtek driver. For some reason, a more recent version is not included in Windows updates.
The problem was resolved by updating the driver, running a clean portable version of the software, and reducing the connection limits to half of their default values. None of these measures were effective on their own.
As of now, the torrent client has been running stably for about 3 hours.