Ok - I put the pieces together: > iwlwifi 0000:01:00.0: loaded firmware version 22.15.8.0 op_mode iwlmvm > iwlwifi 0000:01:00.0: Detected Intel(R) Wireless N 7260, REV=0x144 This means that your NIC is 2.4GHz only. Dual band NICs print something else. Now here come the catch. You seem to have an "old" NIC in a way that the NVM (EEPROM like) is old. In that NVM, there was a bug that advertised the A band channels but disabled the A band in SKU cap. Can you please try the patch attached? I will prevent the driver from trying to work on A band while the HW doesn't allow. emmanuel
>From dd40219d34426e4f9c7d1b10653ece3dc67588c5 Mon Sep 17 00:00:00 2001 From: Emmanuel Grumbach <emmanuel.grumbach@xxxxxxxxx> Date: Thu, 5 Dec 2013 22:42:55 +0200 Subject: [PATCH] iwlwifi: mvm: don't allow A band if SKU forbids it Change-Id: I920b7c53dc05a41de43ab9762eb7853dc4bed1ed Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@xxxxxxxxx> --- drivers/net/wireless/iwlwifi/iwl-nvm-parse.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/wireless/iwlwifi/iwl-nvm-parse.c b/drivers/net/wireless/iwlwifi/iwl-nvm-parse.c index 1fce0ec..9600afc 100644 --- a/drivers/net/wireless/iwlwifi/iwl-nvm-parse.c +++ b/drivers/net/wireless/iwlwifi/iwl-nvm-parse.c @@ -192,6 +192,10 @@ static int iwl_init_channel_map(struct device *dev, const struct iwl_cfg *cfg, continue; } + if (ch_idx >= NUM_2GHZ_CHANNELS && + !data->sku_cap_band_52GHz_enable) + continue; + channel = &data->channels[n_channels]; n_channels++; -- 1.8.1.msysgit.1
