Ieri, improvvisamente il Wi-Fi del mio Macbook ha smesso di funzionare a scuola.
Ho motivo di pensare che venga effettuata solo la banda 5GHz. La connessione Hotspot personale tramite il mio iPhone funziona ancora e anche il mio Wi-Fi a casa funziona.
Ci sono un certo numero di reti (ad esempio eduroam) nella mia scuola ma nessuno di loro funziona. Il mio macbook si collega ai segnali a 5 GHz e mostra la piena potenza del segnale. Ci sono BSSID a 2,4 GHz ma condividono lo stesso SSID e non riesco a capire come forzare il MacBook a connettersi al 2.4 GHz ...
Eseguo OSX 10.9.5.
Effettua ping su www.google.com o timeout 8.8.8.8. In realtà non riesco nemmeno a pingare i router Wifi L'unico traffico che vedo sulla rete (usando un piccolo spia) è il traffico MDNSresponder ...
Questo è il log per attivare la connessione wifi e la connessione a un segnale:
25/11/14 08:05:01,000 kernel[0]: en1: setting diversity to: -1
25/11/14 08:05:01,000 kernel[0]: en1: Error configuring antenna diversity (index = -1).
25/11/14 08:05:01,000 kernel[0]: en1: setting tx antenna: -1
25/11/14 08:05:01,000 kernel[0]: flow_divert_kctl_disconnect (0): disconnecting group 1
25/11/14 08:05:02,000 kernel[0]: IO80211ScanManager::startScanMultiple: Scan request received from 'airportd' (pid 91) (16 SSIDs, 0 BSSIDs).
25/11/14 08:05:02,000 kernel[0]: IO80211ScanManager::startScanMultiple: Initiating scan.
25/11/14 08:05:03,000 kernel[0]: IO80211ScanManager::scanDone: Scheduling cache purge timer in 30 seconds.
25/11/14 08:05:03,000 kernel[0]: en1: 802.11d country code set to 'US'.
25/11/14 08:05:03,000 kernel[0]: en1: Supported channels 1 2 3 4 5 6 7 8 9 10 11 36 40 44 48 52 56 60 64 100 104 108 112 116 120 124 128 132 136 140 149 153 157 161 165
25/11/14 08:05:03,000 kernel[0]: IO80211ScanManager::getScanResult: All scan results returned for 'airportd' (pid 91).
25/11/14 08:05:03,000 kernel[0]: IO80211ScanManager::startScan: Broadcast scan request received from 'locationd' (pid 72) ().
25/11/14 08:05:03,000 kernel[0]: IO80211ScanManager::getScanResult: All scan results returned for 'locationd' (pid 72).
25/11/14 08:05:03,000 kernel[0]: IO80211ScanManager::startScanMultiple: Scan request received from 'airportd' (pid 91) (16 SSIDs, 0 BSSIDs).
25/11/14 08:05:03,000 kernel[0]: IO80211ScanManager::startScanMultiple: Initiating scan.
25/11/14 08:05:04,000 kernel[0]: IO80211ScanManager::getScanResult: All scan results returned for 'airportd' (pid 91).
25/11/14 08:05:04,000 kernel[0]: IO80211ScanManager::startScan: Broadcast scan request received from 'locationd' (pid 72) ().
25/11/14 08:05:04,000 kernel[0]: IO80211ScanManager::getScanResult: All scan results returned for 'locationd' (pid 72).
25/11/14 08:05:04,000 kernel[0]: en1: Terminating supplicant.
25/11/14 08:05:04,000 kernel[0]: RSNSupplicant: Releasing authenticator for dc:a5:f4:9d:74:b1
25/11/14 08:05:04,813 eapolclient[4469]: en1 STOP
25/11/14 08:05:05,000 kernel[0]: MacAuthEvent en1 Auth result for: c4:14:3c:cb:b4:d2 MAC AUTH succeeded
25/11/14 08:05:05,000 kernel[0]: wlEvent: en1 en1 Link UP virtIf = 0
25/11/14 08:05:05,000 kernel[0]: AirPort: Link Up on en1
25/11/14 08:05:05,000 kernel[0]: en1: BSSID changed to c4:14:3c:cb:b4:d2
25/11/14 08:05:06,000 kernel[0]: flow_divert_kctl_disconnect (0): disconnecting group 1
25/11/14 08:05:06,000 kernel[0]: IO80211ScanManager::startScan: Broadcast scan request received from 'airportd' (pid 91) ().
25/11/14 08:05:06,000 kernel[0]: IO80211ScanManager::getScanResult: All scan results returned for 'airportd' (pid 91).
25/11/14 08:05:06,000 kernel[0]: IO80211ScanManager::startScan: Broadcast scan request received from 'airportd' (pid 91) ().
25/11/14 08:05:06,000 kernel[0]: IO80211ScanManager::getScanResult: All scan results returned for 'airportd' (pid 91).
25/11/14 08:05:06,000 kernel[0]: IO80211ScanManager::startScan: Broadcast scan request received from 'SystemUIServer' (pid 295) ().
25/11/14 08:05:06,000 kernel[0]: IO80211ScanManager::getScanResult: All scan results returned for 'SystemUIServer' (pid 295).
25/11/14 08:05:09,839 configd[18]: network changed: DNS* Proxy
25/11/14 08:05:09,855 UserEventAgent[11]: Captive: [CNInfoNetworkActive:1655] en1: SSID 'UCSD-GUEST' making interface primary (cache indicates network not captive)
25/11/14 08:05:09,860 UserEventAgent[11]: Captive: CNPluginHandler en1: Evaluating
25/11/14 08:05:09,869 UserEventAgent[11]: Captive: en1: Not probing 'UCSD-GUEST' (cache indicates not captive)
25/11/14 08:05:09,869 UserEventAgent[11]: Captive: CNPluginHandler en1: Authenticated
25/11/14 08:05:09,887 configd[18]: network changed: v4(en1!:172.17.4.54) DNS+ Proxy+ SMB+
25/11/14 08:05:15,211 AirPlayUIAgent[4475]: 2014-11-25 08:05:15.211446 AM [AirPlayUIAgent] Changed PIN pairing: no
25/11/14 08:05:15,273 AirPlayUIAgent[4475]: 2014-11-25 08:05:15.272642 AM [AirPlayUIAgent] Changed PIN pairing: no
25/11/14 08:05:15,434 Terminal[288]: CGSCopyDisplayUUID: Invalid display 0x2ac00001
25/11/14 08:05:15,435 Terminal[288]: CGSCopyDisplayUUID: Invalid display 0x31000001
Qualcuno ha un'idea di cosa potrei provare di più?
Ecco una glympse nel traffico DNS nel caso in cui potrebbe essere utile:
