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RT2790 Wireless 802.11n 1T/2R PCIe The setup work fine on 6.18.26-gentoo It breaks on 6.18.33-gentoo I found an hint in dmesg: On 6.18.26-gentoo I see: May 31 15:48:45 trash01 kernel: ieee80211 phy0: rt2x00_set_rf: Info - RF chipset 0003 detected On 6.18.33-gentoo I see: May 31 15:22:57 trash01 kernel: ieee80211 phy0: rt2x00_set_rf: Info - RF chipset 0006 detected The RF chipset seems badly detected. Regards