2021-09-30 11:14:56

by Christian Franke

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Subject: mt76: MT7612E dropouts on Ruckus R650


we recently upgraded our office network to a Ruckus R650.

With my MT7612E card, I frequently have dropouts on this new ap, they
all look something like this:

64 bytes from icmp_seq=237 ttl=64 time=1.35 ms
64 bytes from icmp_seq=238 ttl=64 time=1.48 ms
64 bytes from icmp_seq=239 ttl=64 time=4.60 ms
64 bytes from icmp_seq=241 ttl=64 time=1752 ms
64 bytes from icmp_seq=248 ttl=64 time=542 ms
64 bytes from icmp_seq=249 ttl=64 time=1.07 ms

Whenever this happens, the following shows up in the kernel log:

<6>[32244.957969] mt76x2e 0000:02:00.0: Firmware Version: 0.0.00
<6>[32244.957984] mt76x2e 0000:02:00.0: Build: 1
<6>[32244.957989] mt76x2e 0000:02:00.0: Build Time: 201507311614____
<6>[32244.980544] mt76x2e 0000:02:00.0: Firmware running!
<6>[32244.981660] ieee80211 phy0: Hardware restart was requested

This is happening with distro kernel 5.14.7-arch1-1 on x86_64.

I would be glad to investigate this further, however I don't know how to
best approach this.

Any suggestions? :)

Thank you,