First of all, I'm not suscribet to the list, so please CC: me on an
answres, please.
I have a self built Linux router with a wifi card that I had setup a year
ago or more as an AP. I worked for some 8 months without an issue, until
a few months back (I have no date) it just stooped working.
It took me a while to look into it, but finally today I got it working on
channel 44 on the 5GHz band. I chose that channel because it was the only
one available according to hostapd:
nl80211: Mode IEEE 802.11a: 5180[NO_IR] 5200[NO_IR] 5220 5240[NO_IR]
5260[NO_IR][RADAR] 5280[NO_IR][RADAR]
5300[NO_IR][RADAR] 5320[NO_IR][RADAR]
5500[DISABLED][NO_IR][RADAR]
5520[DISABLED][NO_IR][RADAR]
Because I got greedy, I wanted to keep configuring it to try to get 40GHz
in the channel 46, but when I tried to run it again, I got:
nl80211: Mode IEEE 802.11a: 5180[NO_IR] 5200[NO_IR] 5220[NO_IR] 5240[NO_IR]
5260[NO_IR][RADAR] 5280[NO_IR][RADAR]
5300[NO_IR][RADAR] 5320[NO_IR][RADAR]
5500[DISABLED][NO_IR][RADAR]
5520[DISABLED][NO_IR][RADAR]
Channel 44 (primary) not allowed for AP mode, flags: 0x2073 NO-IR
There was no package updates in between, they might have been some 5 to
10 minutes. The router was not rebooted, and has been connected to
internet ever since I set it up initially a year ago. The country
regulatory information is for France:
nl80211: Regulatory information - country=FR (DFS-ETSI)
nl80211: 2402-2482 @ 40 MHz 20 mBm
nl80211: 5170-5250 @ 80 MHz 20 mBm
nl80211: 5250-5330 @ 80 MHz 20 mBm (DFS)
nl80211: 5490-5710 @ 160 MHz 27 mBm (DFS)
nl80211: 57000-66000 @ 2160 MHz 40 mBm
What could have happened, and could I somehow revert this?
--
(Not so) Random fortune:
The technology industry sees itself as in rebellion against corporate
America: not corrupt, not buttoned-up, not empty. In fact, a tech company
can be as corrupt, soulless, and empty as any corporation, but being
unprofessional helps us maintain the belief that we are somehow different
from Wall Street.
-- Shanley Kane