Solving Infrared Problems

Problem

Possible Cause

Solution

Cannot

The required software

Install the required

communicate with

is not running on both

software on the second

another computer

computers.

computer, start the

 

 

second device, and start

 

 

the program on both

 

 

computers.

 

 

 

 

One computer does

Ensure that

 

not have an IrDA-

communication between

 

compliant infrared

infrared devices uses the

 

port.

same protocol.

 

 

 

 

The pathway between

Remove the obstruction,

 

the infrared ports is

align the infrared ports to

 

obstructed, one port is

within 30 degrees, and

 

more than 30 degrees

position the computers

 

(plus or minus 15

within 1.5 feet (about 0.5

 

degrees off the center

meters) of each other.

 

line) from the other, or

The ports should not be

 

the ports are more

touching.

 

than 1.5 feet (about

 

 

0.5 meters) apart.

 

 

 

 

 

There is an interrupt

Check for IRQ conflicts in

 

request (IRQ) conflict.

the Device Manager on

 

 

one or both computers.

 

 

Click

 

 

StartàSettingsàControl

 

 

PanelàSystemàDevice

 

 

Manager tab. If the

 

 

Device Manager

 

 

indicates an IRQ conflict,

 

 

reassign the IRQ number

 

 

for one of the conflicting

 

 

devices.

 

 

 

 

There is a baud rate

Select the same baud

 

conflict.

rate for both computers.

 

 

 

 

There is a conflict with

Select the same # bits

 

the # bits.

setting for both

 

 

computers.

 

 

 

 

There is a stop bit

Select the same stop bit

 

conflict.

for both computers.

 

 

 

 

There is a parity

Select the same parity

 

conflict.

setting for both

 

 

computers.

 

 

 

 

 

Continued

16-16 Troubleshooting