Hi, @Quino Neious
Thank you for posting in Microsoft Q&A forum.
You may try to fix the error 0X800705B4 by enabling the option "Allow clients to connect anonymously" under the SCCM distribution point properties.
Open the Configuration Manager Console.
Click on Administration > Overview > Distribution Points.
Right-Click on the Distribution Point and then click Properties.
In the General tab, click "Allow clients to connect anonymously."
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