iwlwifi: Error sending REPLY_ADD_STA

Hello, sometimes the Wifi adapter (Wireless-N 2230) in this Lenovo Thinkpad E431 "disappears" and cannot be fixed by re-loading the iwlwifi kernel module either. Only a reboot will do. When I was running 3.16.0-4-amd64 from Debian/stable, I noticed the following message, but only _once_ and

iwlwifi: Error sending REPLY_ADD_STA

Hello, sometimes the Wifi adapter (Wireless-N 2230) in this Lenovo Thinkpad E431 "disappears" and cannot be fixed by re-loading the iwlwifi kernel module either. Only a reboot will do. When I was running 3.16.0-4-amd64 from Debian/stable, I noticed the following message, but only _once_ and