Once you identify the chip, download the driver from a trustworthy source. For Windows 10 and 11, many generic serial drivers are included, but older or specific chips may need a manual download.
Complete Guide to COM LPT 17-11 Driver Downloads and Installation
Key points to evaluate when reviewing this driver/download
Disable Driver Signature Enforcement permanently or temporarily com lpt 17-11 driver download
No. LTP is a typo for LPT. But if it’s LTP3, the driver may still assign LPT3 port address (0x378, 0x278, 0x3BC). You can remap in Device Manager under Port Settings.
| Chipset | Official Driver Name | Website | |---------|----------------------|---------| | FTDI | CDM v2.12.28 | ftdichip.com/drivers | | Prolific | PL2303 v1.1.0 | prolific.com.tw | | WCH (CH340) | CH341SER v1.8 | wch.cn | | MosChip | MCS9865/7840 | moschip.com | | Generic PCIe | OpenCores or Vendor | chip manufacturer |
Are you trying to connect a (like a printer or scanner) that isn't being recognized? Parallel Port Tester - Downtown Doug Brown Once you identify the chip, download the driver
What is the of the hardware card/device you are trying to connect?
In Device Manager, right-click your port, go to Properties > Port Settings > Advanced , and manually change the COM or LPT port number to an unassigned value.
The term refers to legacy communication interfaces. "COM" represents serial ports, while "LPT" represents parallel ports. The designation "17-11" usually points to a specific hardware ID, chipset driver version, or motherboard port expansion card configuration. LTP is a typo for LPT
Many older COM/LPT drivers were written for 32-bit architectures (Windows XP/7). Modern 64-bit systems (Windows 10/11) strictly reject unsigned 32-bit drivers.
If you have a desktop or an older laptop, it might have physical 9-pin (COM) or 25-pin (LPT) ports.
If all searches fail, you have three options: