IP Address Calculator for GTOCP4 or GTOCP5 Control Box

This calculator will take the CPx serial number and return the default IP address for the device. While the WiFi poll and FindMounts look at your actual system and find devices, this only does a basic calculation without looking into your computer. If the FindMounts or WiFi poll fail to detect a mount, this is a good fallback and was intended for use in tech support to quickly get a customer's default address without making a math mistake.

Be aware that this might not be the IP address of your CPx. If you or a previous user changed the IP address to resolve an IP conflict, using the default will not help you.

Enter the four digits of your GTOCP4 or GTOCP5 serial number in the text box, and press Calculate to get the unique Default IP Address of your control box.

Default IP


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This page was last modified: June 8, 2020

Astro-Physics, Inc.
11250 Forest Hills Road, Machesney Park, IL  61115, U.S.A.
Phone: 815-282-1513   Fax: 815-282-9847