-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 > Sat, 3 Oct 2015 22:52:07 +0100 > Peter Nikolic <pg.nikolic1@xxxxxxxxx>: > > No idea, but Google is full of similar issues for "crda" and "country > 97". And I don't think this is going any further unless you tell exactly > what wifi adapter you have (from dmesg and/or lspci), what's the access > point, where you purchased both, what band (2,4/5 GHz) and channel you > have configured, and what the country setting should be (one mail you > wrote "JP", the next it was "US"). > I'd strongly suggest you go over > https://wiki.archlinux.org/index.php/Wireless_network_configuration#Respecting_the_regulatory_domain > and perhaps try the part about setting the country via cfg80211 options > in modprobe.conf. I've just repeat all these steps. It is hard to guess why, but now problem has gone. I'm wonder. wpa_supplicant: country='JP' kernel: cfg80211: Calling CRDA for country: JP kernel: cfg80211: Regulatory domain changed to country: JP kernel: cfg80211: DFS Master region: JP - -- _ ~~~ This PGP signature only certifies the sender and date of the message. It implies no approval from the administrators of nym.mixmin.net. Date: Tue Oct 6 07:44:57 2015 GMT From: flow@xxxxxxxxxxxxxx -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEARECAAYFAlYTe/kACgkQViYZwngkfDvLuQCgp+rTjbA96Br0Uz0QtHfOVuRq et4An1FiitWb87AQkAdQ4smmyYoCZPr4 =YbMZ -----END PGP SIGNATURE-----