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Solved
Defender Remote Port Connection Sequence
Why does Defender regularly attempt to connect devices within the same subnet, using this port sequence: 106, 111, 515, 623, 660, 808, 1433, 1434, 1521, 1720, 2049, 2869, 3283, 3306, 5040, 5357, 500...
By default, all devices run device discovery.
If you want to limit the devices that run this, you need to specify a device-tag to use and then set it on the devices you want.
If you want to limit the devices that run this, you need to specify a device-tag to use and then set it on the devices you want.
Thanks Jonhed - I've confirmed the setting is Standard and also saw the Tag function you mention. Thanks for your input & contribution.