[FS#714] ARP/Broadcast does not reach other clients in the same WLAN

[LEDE Bugs]

The following task has a new comment added:

FS#714 - ARP/Broadcast does not reach other clients in the same WLAN
User who did this - Jake (Jakeler)

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I tried 17.01.0-rc, 17.01.0 and 17.01.1. Now also 17.01.2, makes no difference, all have this bug.
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More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=714#comment2804