[FS#896] mt7620 - dropping frames (WiFi)

[LEDE Bugs]

The following task has a new comment added:

FS#896 - mt7620 - dropping frames (WiFi)
User who did this - Chris (SadMonk)

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I've got the same problem with a D-Link DIR-645 
https://wiki.openwrt.org/toh/hwdata/d-link/d-link_dir-645_a1
Deactivating WMM seems to stop the need for reboots... but the connection itself becomes quite flakey
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More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=896#comment4211