My iMac constantly dropping Wi-Fi connection
My iMac (mid 2011, El Capitan, 10.11.2) keeps disconnecting from the local Wi-Fi network. I've run diagnostics, and the last few lines in the Wi-Fi log seem to be quite suspicious:
Sun Jan 10 13:24:22.641 Info: <Wi-Fi Menu Extra[269]> link quality changed
Sun Jan 10 13:24:37.642 Driver Event: <airportd[68]> _bsd_80211_event_callback: LINK_QUALITY (en1)
Sun Jan 10 13:24:37.642 Info: <airportd[68]> _bsd_80211_event_callback: <en1> link quality: RSSI=-59 dBm TxRate=65 Mbps
Sun Jan 10 13:24:37.643 Info: <Wi-Fi Menu Extra[269]> link quality changed
Sun Jan 10 13:24:42.342 <kernel> en1: Received EAPOL packet (length = 145)
Sun Jan 10 13:24:42.342 <kernel> inputEAPOLFrame: 0 extra bytes present in EAPOL frame.
Sun Jan 10 13:24:42.342 <kernel> inputEAPOLFrame: decrypting key data
Sun Jan 10 13:24:42.342 <kernel> inputEAPOLFrame: Received message 1 of 2
Sun Jan 10 13:24:42.342 <kernel> installGTK: setting cipher key (flags = 0x0)
Sun Jan 10 13:24:42.342 <kernel> GTK-RSC:
Sun Jan 10 13:24:42.342 [00000000] 00 00 00 00 00 00
Sun Jan 10 13:24:42.342 <kernel> GTK:
Sun Jan 10 13:24:42.342 [00000000] DB 06 2C 70 FE 6E 11 BA 7D 6A 18 54 B8 49 66 F7
Sun Jan 10 13:24:42.342 <kernel> installGTK: GTK installed
Sun Jan 10 13:24:52.645 Driver Event: <airportd[68]> _bsd_80211_event_callback: LINK_QUALITY (en1)
Sun Jan 10 13:24:52.645 Info: <airportd[68]> _bsd_80211_event_callback: <en1> link quality: RSSI=-56 dBm TxRate=58 Mbps
Sun Jan 10 13:24:52.645 Info: <Wi-Fi Menu Extra[269]> link quality changed
Sun Jan 10 13:25:02.646 Driver Event: <airportd[68]> _bsd_80211_event_callback: LINK_QUALITY (en1)
Sun Jan 10 13:25:02.646 Info: <airportd[68]> _bsd_80211_event_callback: <en1> link quality: RSSI=-56 dBm TxRate=65 Mbps
Sun Jan 10 13:25:02.646 Info: <Wi-Fi Menu Extra[269]> link quality changed
Sun Jan 10 13:25:33.319 <airportd[68]> _SC_callback: Changed keys = { 'Setup:/Network/Interface/en1/AirPort' }
Sun Jan 10 13:25:33.319 SC: <airportd[68]> airportdProcessSystemConfigurationEvent: Processing 'Setup:/Network/Interface/en1/AirPort'
Sun Jan 10 13:25:33.332 AutoJoin: <airportd[68]> AUTO-JOIN triggered (Network Service Changed)
Sun Jan 10 13:25:33.333 AutoJoin: <airportd[68]> user: janos
Sun Jan 10 13:25:33.336 Info: <airportd[68]> PRIORITY LOCK ADDED [client=airportd, type=4, interface=en1, priority=7]
Sun Jan 10 13:25:33.336 AutoJoin: <airportd[68]> AUTO-JOIN STARTED for interface en1 (Network Service Changed)
Sun Jan 10 13:25:33.336 AutoJoin: <airportd[68]> NOT RECOVERY MODE => continuing
Sun Jan 10 13:25:33.336 AutoJoin: <airportd[68]> NOT LOGINWINDOW MODE 802.1X => continuing
Sun Jan 10 13:28:37.711 <kernel> apple80211Request[10514] Unsupported ioctl 221
Sun Jan 10 13:28:37.711 <kernel> apple80211Request[10514] Unsupported ioctl 222
(End of log)
Does anyone have any idea? Do you think if I use a direct connection (maybe using some sort of wifi usb link) I could possibly work around this problem?
iMac, OS X El Capitan (10.11.2)