Modern motherboards sometimes disable resource allocation for legacy IRQ interrupts. Restart your computer, enter the BIOS/UEFI menu, and ensure that options like "OS Optimized Defaults" or "PCI Latency Timer" are configured to allow older expansion cards to request system resources. Check Cable and Hardware Integrity
The keyword "com lpt 1711" does not refer to a simple USB-to-serial cable, but rather points to a specific and powerful piece of industrial hardware: the .
dot matrix printer (often associated with port settings in older systems) or modern Epson L-series printers like the that use virtual COM/LPT ports for communication. 1. Official Driver Download Links
Modern operating systems no longer enable legacy communication (COM) and parallel (LPT) ports by default. When dealing with hardware associated with the 1711 configuration, the system often triggers errors due to: com lpt 1711 driver download top
If you still face issues, post your hardware ID and Windows version on a forum like VOGONS or Reddit’s r/techsupport – the community often has the final missing piece.
→ Official WCH driver package (supports XP to 11) Download: [WCH.cn official]
Ensure the card is firmly seated in the PCI/PCIe slot. If the error persists, open Device Manager, uninstall the device completely, check the box for "Delete the driver software for this device," and attempt a clean installation with a different driver version. Missing LPT or COM Port Assignment dot matrix printer (often associated with port settings
(most common for 1711-labeled cards) → Driver version 1.0.0.9 (Win 10/11 compatible) Download: [Link to official MosChip or major driver repository – e.g., Station-Drivers]
The printed on your physical PCI/PCIe card?
Re-open Device Manager. Under “Ports (COM & LPT)” you should see: When dealing with hardware associated with the 1711
: Ports physically present or connected via PCIe expansion but omitted from the active device tree.
Choose Install the hardware that I manually select from a list (Advanced) . Scroll down, highlight , and click Next .
The number "1711" is the critical anomaly. It does not correspond to:
The COM LPT 1711 driver typically refers to the . These drivers allow the Windows operating system to recognize and communicate with the physical RS-232/422/485 serial ports (COM) and parallel ports (LPT) integrated into the system's motherboard.