| Error Message | Likely Cause | Solution | | :--- | :--- | :--- | | "Setup cannot install RTX driver – Windows Defender" | Antivirus blocking kernel driver. | Temporarily disable Real-time Protection and Core Isolation (Memory Integrity). | | "No compatible hardware found" | CPU lacks HPET (High Precision Event Timer) or running in a VM. | Enable HPET in BIOS. WinAC RTX does not run on VMware/ VirtualBox reliably. Use Siemens SIMIT for virtual testing. | | "PROFINET cycle time exceeded" (500 ms) | Wrong network card or Hyper-V enabled. | Go to BIOS → Disable VT-d/AMD-VI. Use an Intel I210/I350 NIC. | | "Download failed: Corrupt CAB file" | The original download was interrupted. | Delete the file, clear browser cache, re-download from SIOS using a download manager. | | "WinAC RTX not listed in TIA Portal" | Missing Hardware Support Package (HSP). | Download HSP 0290 for WinAC RTX from TIA Portal's support package management. |
WinAC RTX needs high-resolution timers. You must disable the following in BIOS/Windows: simatic winac rtx download new
| Issue | Likely Solution | |-------|----------------| | Installer says “no real-time capable hardware” | Enable HPET in BIOS / use compatible network card | | WinAC won’t start (red LED) | Missing or invalid license | | Profinet device not found | Install separate PN-IO driver (Siemens support) | | Upgrade fails | Uninstall old version + reboot before installing new | | Error Message | Likely Cause | Solution