Device Manager
[FONT=Verdana, sans-serif]When you open the COM port properties in Device Manager, and then click
Advanced on the
Port Settings tab, you may receive the following error message:[/FONT]
[FONT=Verdana, sans-serif]You must have write privileges in the registry for this device in order to modify the devices advanced settings.[/FONT]
[FONT=Verdana, sans-serif]This behavior occurs because there are three missing registry subkeys from the following registry key:[/FONT]
[FONT=Courier New, monospace]
HKEY_LOCAL_MACHINE\system\currentcontrolset\enum\acpi\pnp0501\2[/FONT]
[FONT=Verdana, sans-serif]The missing keys are:[/FONT]
- [FONT=Verdana, sans-serif]RxFIFO[/FONT]
- [FONT=Verdana, sans-serif]TxFIFO[/FONT]
- [FONT=Verdana, sans-serif]ForceFifoEnable [/FONT]