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When The LAN Locks Up

If you are running a MicroBiz Controller Series product on a LAN, and the LAN locks up at the License screen, most likely the problem is an Interrupt (IRQ) conflict.

As a rule of thumb, there should be no device sharing the same IRQ setting.

An example of this would be a Pole Display on COM2 and an Ethernet card on IRQ3.

Below, is a list of all major IRQ settings and what they are assigned to.

Any IRQ listed as AVAILABLE may be used for a network card, sound card, etc...

IRQ00 TIMER

IRQ01 KEYBOARD

IRQ02 DOS/SYSTEM AREA

IRQ03 COM2/COM4

IRQ04 COM1/COM3

IRQ05 LPT2/LPT4

IRQ06 FLOPPY DISK

IRQ07 LPT1/LPT3

IRQ08 REAL-TIME CLOCK

IRQ09 AVAILABLE

IRQ10 AVAILABLE

IRQ11 AVAILABLE

IRQ12 AVAILABLE

IRQ13 COPROCESSOR

IRQ14 FIXED DISK

IRQ15 AVAILABLE

MicroBiz reccommends using IRQ15 for ALL Ethernet Adaptors when possible.

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