i did, i even disable dhcp on router i don't even know it's work or not actually, how to use only ipv4? thanks in advanceI see IPv6, which tends to be more problematic with some software. One of your screenshots also showed IPv6 is temporary. On your computer you might try an experiment: Disable IPv6. This is not usually a problem on any LAN (if you had an Internet facing IP then it would matter).
EDIT: In other words, use only IPv4.
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