I have a Lenovo Thinkpad T61 laptop. I had to wipe my hard drive clean and re-loaded window xp.
Under "My device manager" I can see Ports (COM & LPT), under this the printer LPT3 port is fine, but the Communication COM3 port has an exclamation mark against it. When I click the COM3 port the following message appears "Windows cannot determine the setting for this device. Consult the documentation that came with the device and use the Resource tab to set the configuration". Needless to say that I do not have the documentation that came with the device (if indeed it exists in the first place). The given detailes relating to the Device Type is "Ports (COM & LPT)" whilst the given Manufacturer detail is "Standard port types".
When I click the Resource tab, it shows the following settings:
I/O Range 03F8 - 03FF IRQ 04
I have already unistalled the port and then installed it again in case window xp could determine the configuration, but when I re-install the port it gives me again the same message. I rolled back the driver and updated the same, so it is not a driver issue, it is a configuration issue.
Also, I am not sure as to why the systems has automatically selected COM3 and LPT3 rather than COM1 and LPT1, which are not in use by any other application and which I would have thought to be the logical default ports. Anyhow, ports 1 or 3 is a minor issue. The most important point is can anyone please let me know what the correct configuration values for the COM port are?