Change Subnet to /22

Im using Sophos XG230 and Ive change the subnet to /22 ( - from /24 ( now I test to reserve IP and put that IP to laptop, the problem is I cannot ping the Firewall( so the laptop cant access the internet also but if I ping my workstation( and other devices I can ping it. Did I missed something?

I do the trace route but the result is RTO.

Thanks for your help

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[edited by: Erick Jan at 3:52 AM (GMT -8) on 29 Nov 2023]