The "17-11" might appear in the device's hardware ID string. To verify, open Device Manager > right-click the unknown device > Properties > Details > Hardware Ids . Look for strings like USB\VID_17??&PID_11?? – the 17 and 11 could be vendor/product ID fragments.
This is where the trail goes cold. "17-11" is not a standard chip designation from major manufacturers like Texas Instruments, FTDI, or MosChip. It is likely a , a registry typo, or a shorthand used by a specific (and now defunct) generic manufacturer, likely based in Shenzhen or Taiwan, churning out "no-name" expansion cards in the late 1990s and early 2000s.
If you see a yellow exclamation mark, right-click the device and select Update driver > Search automatically for drivers . com lpt 17-11 driver download
| 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 |
After a tense download and a manual "Update Driver" dance in the Device Manager The "17-11" might appear in the device's hardware ID string
The combination of "COM LPT" suggests a multi-function I/O controller—a card or chipset that adds these legacy ports to a computer, likely via a PCI slot, a PCIe slot, or a USB adapter.
Right-click the unrecognized COM/LPT port and select . Choose Browse my computer for drivers . – the 17 and 11 could be vendor/product ID fragments
The Com LPT 17-11 driver is a software component that enables communication between your computer's operating system and the Com LPT 17-11 device. This device is likely a type of printer or plotter, given the "LPT" designation, which is commonly associated with parallel ports used for printer connections.
The Titan doesn't speak Wi-Fi. It doesn't understand Bluetooth. It only talks through a thick, beige cable connected to a ruggedized workstation that has seen better decades.
If another software or hardware component is occupying the same COM or LPT assignment, your device will not communicate.
If you have a , Microsoft Windows 8/10/11 will actively block older drivers (including versions that might be labeled "17-11"). The official Prolific driver v3.x.x and newer will not work with counterfeit chips.