My Yale can normally be included from the opposite end of the house. Unless it’s an old lock it shouldn’t need to be close to the controller as the requirement / recommendation to use low power for secure inclusion was removed a long time ago.
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If there is a lot of other traffic, it will delay the secure inclusion and since the timing requirements are tight (key exchange must complete within 15 seconds of the inclusion into the network) any delay of more than 5 to 10 seconds is likely to prevent secure inclusion from completing.