TROUBLESHOOTING AND H ELP R ESOURCES6-17Sometimes it is necessary to change the IRQ setting on an expansion card to free an IRQfor the modem. For example, if your sound card is using IRQ5, you can reinstall it usingIRQ11. This would then free IRQ5 for use by your modem.If you continue to have conflicts, or do not know how to disable the on-board COMports or other settings, you should contact your computer manufacturer or softwaremanufacturer. If you are sure that there are no conflicts in your system, and your 3ComU.S. Robotics modem still does not function, please contact our technical supportdepartment for further assistance.(Winmodems Only) Windows never detected the modem.Possible Solutions:• Make sure the system has a free COM port or IRQ to use.• Under Windows 95, make sure that the modem is not listed in the Device Manager under“Other Devices.” If it is, delete it and reinstall the Winmodem.