networking - SSL errors when connecting to University Network - Ask Ubuntu

to start, have no problems @ on home network or on phone's mobile hotspot.

basically when connect school's open wifi network ssl errors in connected applications (chrome, firefox, dropbox, tresorit). seem have no connectivity. i'm on brand new laptop running ubuntu 16.04.1.

i'm quite new ubuntu , have no idea how troubleshoot this. i've checked normal stuff proxy/system time , looks normal.

i'm kind of thinking specific school's network , laptop because else seems using wifi network without problems.

i have gufw firewall installed, disabled doesn't seem make difference.

any appreciated. edit: here info on wifi adapter, i'm starting think has specific adapter: intel 3165ngw

filename: /lib/modules/4.4.0-45-generic/kernel/drivers/net/wireless/iwlwifi/iwlwifi.ko license: gpl author: copyright(c) 2003- 2015 intel corporation > description: intel(r) wireless wifi driver linux firmware: iwlwifi-100-5.ucode firmware: iwlwifi-1000-5.ucode firmware: iwlwifi-135-6.ucode firmware: iwlwifi-105-6.ucode firmware: iwlwifi-2030-6.ucode firmware: iwlwifi-2000-6.ucode firmware: iwlwifi-5150-2.ucode firmware: iwlwifi-5000-5.ucode firmware: iwlwifi-6000g2b-6.ucode firmware: iwlwifi-6000g2a-5.ucode firmware: iwlwifi-6050-5.ucode firmware: iwlwifi-6000-4.ucode firmware: iwlwifi-7265d-13.ucode firmware: iwlwifi-7265-13.ucode firmware: iwlwifi-3160-13.ucode firmware: iwlwifi-7260-13.ucode firmware: iwlwifi-8000-13.ucode srcversion: 651bf6cbf283f6f817b8f3a alias: pci:v00008086d000024f3svsd00000930bcsci alias: pci:v00008086d000024f3svsd00000950bcsci alias: pci:v00008086d000024f3svsd00000850bcsci alias: pci:v00008086d000024f3svsd00000910bcsci alias: pci:v00008086d000024f3svsd00000810bcsci alias: pci:v00008086d000024f6svsd00000030bcsci alias: pci:v00008086d000024f5svsd00000010bcsci alias: pci:v00008086d000024f3svsd00000044bcsci alias: pci:v00008086d000024f3svsd00000004bcsci alias: pci:v00008086d000024f3svsd00009150bcsci alias: pci:v00008086d000024f3svsd00009050bcsci alias: pci:v00008086d000024f3svsd00008150bcsci alias: pci:v00008086d000024f3svsd00008050bcsci alias: pci:v00008086d000024f3svsd00009132bcsci alias: pci:v00008086d000024f3svsd00008132bcsci alias: pci:v00008086d000024f3svsd00009130bcsci alias: pci:v00008086d000024f3svsd00008130bcsci alias: pci:v00008086d000024f4svsd00009030bcsci alias: pci:v00008086d000024f4svsd00008030bcsci alias: pci:v00008086d000024f3svsd00009110bcsci alias: pci:v00008086d000024f3svsd00009010bcsci alias: pci:v00008086d000024f3svsd00008110bcsci alias: pci:v00008086d000024f3svsd00008010bcsci alias: pci:v00008086d000024f3svsd0000d050bcsci alias: pci:v00008086d000024f3svsd0000c050bcsci alias: pci:v00008086d000024f3svsd0000d010bcsci alias: pci:v00008086d000024f3svsd0000c110bcsci alias: pci:v00008086d000024f3svsd0000c010bcsci alias: pci:v00008086d000024f4svsd00001030bcsci alias: pci:v00008086d000024f4svsd00000030bcsci alias: pci:v00008086d000024f3svsd00001150bcsci alias: pci:v00008086d000024f3svsd00000150bcsci alias: pci:v00008086d000024f3svsd00001050bcsci alias: pci:v00008086d000024f3svsd00000250bcsci alias: pci:v00008086d000024f3svsd00000050bcsci alias: pci:v00008086d000024f3svsd00001110bcsci alias: pci:v00008086d000024f3svsd00001012bcsci alias: pci:v00008086d000024f3svsd00000012bcsci alias: pci:v00008086d000024f3svsd000001f0bcsci alias: pci:v00008086d000024f3svsd00000110bcsci alias: pci:v00008086d000024f3svsd00001132bcsci alias: pci:v00008086d000024f3svsd00000132bcsci alias: pci:v00008086d000024f3svsd00001130bcsci alias: pci:v00008086d000024f3svsd00000130bcsci alias: pci:v00008086d000024f3svsd00001010bcsci alias: pci:v00008086d000024f3svsd00000010bcsci alias: pci:v00008086d0000095asvsd00009400bcsci alias: pci:v00008086d0000095asvsd00009000bcsci alias: pci:v00008086d0000095bsvsd0000520abcsci alias: pci:v00008086d0000095bsvsd00005212bcsci alias: pci:v00008086d0000095asvsd00005f10bcsci alias: pci:v00008086d0000095asvsd00005490bcsci alias: pci:v00008086d0000095bsvsd00005290bcsci alias: pci:v00008086d0000095asvsd00005590bcsci alias: pci:v00008086d0000095asvsd00005190bcsci alias: pci:v00008086d0000095asvsd00005090bcsci alias: pci:v00008086d0000095asvsd00005420bcsci alias: pci:v00008086d0000095asvsd0000502abcsci alias: pci:v00008086d0000095asvsd00005020bcsci alias: pci:v00008086d0000095asvsd00009410bcsci alias: pci:v00008086d0000095bsvsd00009310bcsci alias: pci:v00008086d0000095asvsd00009510bcsci alias: pci:v00008086d0000095bsvsd00009200bcsci alias: pci:v00008086d0000095bsvsd00009210bcsci alias: pci:v00008086d0000095asvsd00009112bcsci alias: pci:v00008086d0000095asvsd00009110bcsci alias: pci:v00008086d0000095asvsd0000900abcsci alias: pci:v00008086d0000095asvsd00009012bcsci alias: pci:v00008086d0000095asvsd00009010bcsci alias: pci:v00008086d0000095bsvsd00005202bcsci alias: pci:v00008086d0000095asvsd00005102bcsci alias: pci:v00008086d0000095asvsd00005002bcsci alias: pci:v00008086d0000095bsvsd00005200bcsci alias: pci:v00008086d0000095asvsd0000500abcsci alias: pci:v00008086d0000095asvsd00005000bcsci alias: pci:v00008086d0000095asvsd00001010bcsci alias: pci:v00008086d0000095asvsd00005400bcsci alias: pci:v00008086d0000095asvsd00005510bcsci alias: pci:v00008086d0000095asvsd00005410bcsci alias: pci:v00008086d0000095asvsd00005412bcsci alias: pci:v00008086d0000095asvsd00005012bcsci alias: pci:v00008086d0000095asvsd00005c10bcsci alias: pci:v00008086d0000095bsvsd00005210bcsci alias: pci:v00008086d0000095bsvsd00005302bcsci alias: pci:v00008086d0000095bsvsd00005310bcsci alias: pci:v00008086d0000095asvsd00005100bcsci alias: pci:v00008086d0000095asvsd00005110bcsci alias: pci:v00008086d0000095asvsd00005010bcsci alias: pci:v00008086d00003165svsd00008110bcsci alias: pci:v00008086d00003165svsd00008010bcsci alias: pci:v00008086d00003166svsd00004210bcsci alias: pci:v00008086d00003166svsd00004310bcsci alias: pci:v00008086d00003165svsd00004110bcsci alias: pci:v00008086d00003165svsd00004510bcsci alias: pci:v00008086d00003165svsd00004410bcsci alias: pci:v00008086d00003166svsd00004212bcsci alias: pci:v00008086d00003165svsd00004012bcsci alias: pci:v00008086d00003165svsd00004010bcsci alias: pci:v00008086d000008b3svsd00001170bcsci alias: pci:v00008086d000008b3svsd00001070bcsci alias: pci:v00008086d000008b3svsd00008570bcsci alias: pci:v00008086d000008b3svsd00008470bcsci alias: pci:v00008086d000008b4svsd00008272bcsci alias: pci:v00008086d000008b4svsd00008370bcsci alias: pci:v00008086d000008b4svsd00008270bcsci alias: pci:v00008086d000008b3svsd00008062bcsci alias: pci:v00008086d000008b3svsd00008060bcsci alias: pci:v00008086d000008b3svsd00008172bcsci alias: pci:v00008086d000008b3svsd00008170bcsci alias: pci:v00008086d000008b3svsd00008072bcsci alias: pci:v00008086d000008b3svsd00008070bcsci alias: pci:v00008086d000008b4svsd00000370bcsci alias: pci:v00008086d000008b3svsd00000472bcsci alias: pci:v00008086d000008b3svsd00000470bcsci alias: pci:v00008086d000008b4svsd00000272bcsci alias: pci:v00008086d000008b4svsd00000270bcsci alias: pci:v00008086d000008b3svsd00000062bcsci alias: pci:v00008086d000008b3svsd00000060bcsci alias: pci:v00008086d000008b3svsd00000172bcsci alias: pci:v00008086d000008b3svsd00000170bcsci alias: pci:v00008086d000008b3svsd00000072bcsci alias: pci:v00008086d000008b3svsd00000070bcsci alias: pci:v00008086d000008b1svsd0000c420bcsci alias: pci:v00008086d000008b2svsd0000c220bcsci alias: pci:v00008086d000008b1svsd0000c02abcsci alias: pci:v00008086d000008b1svsd0000c020bcsci alias: pci:v00008086d000008b1svsd0000c360bcsci alias: pci:v00008086d000008b2svsd0000c370bcsci alias: pci:v00008086d000008b1svsd0000c560bcsci alias: pci:v00008086d000008b1svsd0000c570bcsci alias: pci:v00008086d000008b1svsd0000c462bcsci alias: pci:v00008086d000008b1svsd0000c460bcsci alias: pci:v00008086d000008b1svsd0000c472bcsci alias: pci:v00008086d000008b1svsd0000c470bcsci alias: pci:v00008086d000008b2svsd0000c262bcsci alias: pci:v00008086d000008b2svsd0000c26abcsci alias: pci:v00008086d000008b2svsd0000c260bcsci alias: pci:v00008086d000008b2svsd0000c272bcsci alias: pci:v00008086d000008b1svsd0000cc60bcsci alias: pci:v00008086d000008b1svsd0000cc70bcsci alias: pci:v00008086d000008b2svsd0000c270bcsci alias: pci:v00008086d000008b1svsd0000c760bcsci alias: pci:v00008086d000008b1svsd0000c770bcsci alias: pci:v00008086d000008b1svsd0000c162bcsci alias: pci:v00008086d000008b1svsd0000c062bcsci alias: pci:v00008086d000008b1svsd0000c160bcsci alias: pci:v00008086d000008b1svsd0000c06abcsci alias: pci:v00008086d000008b1svsd0000c060bcsci alias: pci:v00008086d000008b1svsd0000c170bcsci alias: pci:v00008086d000008b1svsd0000c072bcsci alias: pci:v00008086d000008b1svsd0000c070bcsci alias: pci:v00008086d000008b1svsd00004420bcsci alias: pci:v00008086d000008b2svsd00004220bcsci alias: pci:v00008086d000008b1svsd0000402abcsci alias: pci:v00008086d000008b1svsd00004020bcsci alias: pci:v00008086d000008b1svsd00005770bcsci alias: pci:v00008086d000008b1svsd00005170bcsci alias: pci:v00008086d000008b1svsd00005072bcsci alias: pci:v00008086d000008b1svsd00005070bcsci alias: pci:v00008086d000008b2svsd00004360bcsci alias: pci:v00008086d000008b2svsd00004370bcsci alias: pci:v00008086d000008b1svsd00004560bcsci alias: pci:v00008086d000008b1svsd00004570bcsci alias: pci:v00008086d000008b1svsd00004a6cbcsci alias: pci:v00008086d000008b1svsd00004a6ebcsci alias: pci:v00008086d000008b1svsd00004a70bcsci alias: pci:v00008086d000008b1svsd0000486ebcsci alias: pci:v00008086d000008b1svsd00004870bcsci alias: pci:v00008086d000008b1svsd00004462bcsci alias: pci:v00008086d000008b1svsd0000446abcsci alias: pci:v00008086d000008b1svsd00004460bcsci alias: pci:v00008086d000008b1svsd00004472bcsci alias: pci:v00008086d000008b1svsd00004470bcsci alias: pci:v00008086d000008b2svsd00004262bcsci alias: pci:v00008086d000008b2svsd0000426abcsci alias: pci:v00008086d000008b2svsd00004260bcsci alias: pci:v00008086d000008b2svsd00004272bcsci alias: pci:v00008086d000008b2svsd00004270bcsci alias: pci:v00008086d000008b1svsd00004162bcsci alias: pci:v00008086d000008b1svsd00004062bcsci alias: pci:v00008086d000008b1svsd00004160bcsci alias: pci:v00008086d000008b1svsd0000406abcsci alias: pci:v00008086d000008b1svsd00004060bcsci alias: pci:v00008086d000008b1svsd00004c70bcsci alias: pci:v00008086d000008b1svsd00004c60bcsci alias: pci:v00008086d000008b1svsd00004170bcsci alias: pci:v00008086d000008b1svsd00004072bcsci alias: pci:v00008086d000008b1svsd00004070bcsci alias: pci:v00008086d00000892svsd00000462bcsci alias: pci:v00008086d00000893svsd00000262bcsci alias: pci:v00008086d00000892svsd00000062bcsci alias: pci:v00008086d00000894svsd00000822bcsci alias: pci:v00008086d00000894svsd00000422bcsci alias: pci:v00008086d00000895svsd00000222bcsci alias: pci:v00008086d00000894svsd00000022bcsci alias: pci:v00008086d0000088fsvsd00005260bcsci alias: pci:v00008086d0000088esvsd00004860bcsci alias: pci:v00008086d0000088esvsd0000446abcsci alias: pci:v00008086d0000088esvsd00004460bcsci alias: pci:v00008086d0000088fsvsd0000426abcsci alias: pci:v00008086d0000088fsvsd00004260bcsci alias: pci:v00008086d0000088esvsd0000406abcsci alias: pci:v00008086d0000088esvsd00004060bcsci alias: pci:v00008086d00000887svsd00004462bcsci alias: pci:v00008086d00000888svsd00004262bcsci alias: pci:v00008086d00000887svsd00004062bcsci alias: pci:v00008086d00000890svsd00004822bcsci alias: pci:v00008086d00000890svsd00004422bcsci alias: pci:v00008086d00000891svsd00004222bcsci alias: pci:v00008086d00000890svsd00004022bcsci alias: pci:v00008086d00000896svsd00005027bcsci alias: pci:v00008086d00000896svsd00005025bcsci alias: pci:v00008086d00000897svsd00005017bcsci alias: pci:v00008086d00000897svsd00005015bcsci alias: pci:v00008086d00000896svsd00005007bcsci alias: pci:v00008086d00000896svsd00005005bcsci alias: pci:v00008086d000008aesvsd00001027bcsci alias: pci:v00008086d000008aesvsd00001025bcsci alias: pci:v00008086d000008afsvsd00001017bcsci alias: pci:v00008086d000008afsvsd00001015bcsci alias: pci:v00008086d000008aesvsd00001007bcsci alias: pci:v00008086d000008aesvsd00001005bcsci alias: pci:v00008086d00000084svsd00001316bcsci alias: pci:v00008086d00000084svsd00001216bcsci alias: pci:v00008086d00000083svsd00001326bcsci alias: pci:v00008086d00000083svsd00001226bcsci alias: pci:v00008086d00000083svsd00001306bcsci alias: pci:v00008086d00000083svsd00001206bcsci alias: pci:v00008086d00000084svsd00001315bcsci alias: pci:v00008086d00000084svsd00001215bcsci alias: pci:v00008086d00000083svsd00001325bcsci alias: pci:v00008086d00000083svsd00001225bcsci alias: pci:v00008086d00000083svsd00001305bcsci alias: pci:v00008086d00000083svsd00001205bcsci alias: pci:v00008086d00000886svsd00001317bcsci alias: pci:v00008086d00000886svsd00001315bcsci alias: pci:v00008086d00000885svsd00001327bcsci alias: pci:v00008086d00000885svsd00001325bcsci alias: pci:v00008086d00000885svsd00001307bcsci alias: pci:v00008086d00000885svsd00001305bcsci alias: pci:v00008086d00000089svsd00001316bcsci alias: pci:v00008086d00000089svsd00001311bcsci alias: pci:v00008086d00000087svsd00001326bcsci alias: pci:v00008086d00000087svsd00001321bcsci alias: pci:v00008086d00000087svsd00001306bcsci alias: pci:v00008086d00000087svsd00001301bcsci alias: pci:v00008086d00000091svsd00005226bcsci alias: pci:v00008086d00000091svsd00005225bcsci alias: pci:v00008086d00000091svsd00005221bcsci alias: pci:v00008086d00000091svsd00005207bcsci alias: pci:v00008086d00000091svsd00005206bcsci alias: pci:v00008086d00000091svsd00005205bcsci alias: pci:v00008086d00000091svsd00005201bcsci alias: pci:v00008086d00000090svsd00005216bcsci alias: pci:v00008086d00000090svsd00005215bcsci alias: pci:v00008086d00000090svsd00005211bcsci alias: pci:v00008086d0000008bsvsd00005317bcsci alias: pci:v00008086d0000008bsvsd00005315bcsci alias: pci:v00008086d0000008asvsd00005327bcsci alias: pci:v00008086d0000008asvsd00005325bcsci alias: pci:v00008086d0000008asvsd00005307bcsci alias: pci:v00008086d0000008asvsd00005305bcsci alias: pci:v00008086d00000082svsd00001305bcsci alias: pci:v00008086d00000082svsd00001304bcsci alias: pci:v00008086d00000082svsd00004820bcsci alias: pci:v00008086d00000085svsd0000c228bcsci alias: pci:v00008086d00000085svsd0000c220bcsci alias: pci:v00008086d00000082svsd0000c020bcsci alias: pci:v00008086d00000085svsd00001316bcsci alias: pci:v00008086d00000085svsd00001318bcsci alias: pci:v00008086d00000085svsd00001311bcsci alias: pci:v00008086d00000082svsd00001328bcsci alias: pci:v00008086d00000082svsd00001326bcsci alias: pci:v00008086d00000082svsd00001321bcsci alias: pci:v00008086d00000082svsd00001308bcsci alias: pci:v00008086d00000082svsd00001307bcsci alias: pci:v00008086d00000082svsd00001306bcsci alias: pci:v00008086d00000082svsd00001301bcsci alias: pci:v00008086d00004239svsd00001316bcsci alias: pci:v00008086d00004239svsd00001311bcsci alias: pci:v00008086d00004238svsd00001118bcsci alias: pci:v00008086d00004238svsd00001111bcsci alias: pci:v00008086d0000422csvsd00001326bcsci alias: pci:v00008086d0000422csvsd00001321bcsci alias: pci:v00008086d0000422csvsd00001307bcsci alias: pci:v00008086d0000422csvsd00001306bcsci alias: pci:v00008086d0000422csvsd00001301bcsci alias: pci:v00008086d0000422bsvsd00001128bcsci alias: pci:v00008086d0000422bsvsd00001121bcsci alias: pci:v00008086d0000422bsvsd00001108bcsci alias: pci:v00008086d0000422bsvsd00001101bcsci alias: pci:v00008086d0000423dsvsd00001316bcsci alias: pci:v00008086d0000423dsvsd00001216bcsci alias: pci:v00008086d0000423dsvsd00001311bcsci alias: pci:v00008086d0000423dsvsd00001211bcsci alias: pci:v00008086d0000423csvsd00001326bcsci alias: pci:v00008086d0000423csvsd00001321bcsci alias: pci:v00008086d0000423csvsd00001221bcsci alias: pci:v00008086d0000423csvsd00001306bcsci alias: pci:v00008086d0000423csvsd00001206bcsci alias: pci:v00008086d0000423csvsd00001301bcsci alias: pci:v00008086d0000423csvsd00001201bcsci alias: pci:v00008086d0000423bsvsd00001011bcsci alias: pci:v00008086d0000423asvsd00001021bcsci alias: pci:v00008086d0000423asvsd00001001bcsci alias: pci:v00008086d00004236svsd00001114bcsci alias: pci:v00008086d00004236svsd00001014bcsci alias: pci:v00008086d00004236svsd00001111bcsci alias: pci:v00008086d00004236svsd00001011bcsci alias: pci:v00008086d00004235svsd00001104bcsci alias: pci:v00008086d00004235svsd00001004bcsci alias: pci:v00008086d00004235svsd00001101bcsci alias: pci:v00008086d00004235svsd00001001bcsci alias: pci:v00008086d00004235svsd00001124bcsci alias: pci:v00008086d00004235svsd00001024bcsci alias: pci:v00008086d00004235svsd00001121bcsci alias: pci:v00008086d00004235svsd00001021bcsci alias: pci:v00008086d00004237svsd00001316bcsci alias: pci:v00008086d00004237svsd00001216bcsci alias: pci:v00008086d00004237svsd00001315bcsci alias: pci:v00008086d00004237svsd00001215bcsci alias: pci:v00008086d00004237svsd00001314bcsci alias: pci:v00008086d00004237svsd00001214bcsci alias: pci:v00008086d00004237svsd00001311bcsci alias: pci:v00008086d00004237svsd00001211bcsci alias: pci:v00008086d00004232svsd00001326bcsci alias: pci:v00008086d00004232svsd00001226bcsci alias: pci:v00008086d00004232svsd00001325bcsci alias: pci:v00008086d00004232svsd00001225bcsci alias: pci:v00008086d00004232svsd00001324bcsci alias: pci:v00008086d00004232svsd00001224bcsci alias: pci:v00008086d00004232svsd00001321bcsci alias: pci:v00008086d00004232svsd00001221bcsci alias: pci:v00008086d00004232svsd00001306bcsci alias: pci:v00008086d00004232svsd00001206bcsci alias: pci:v00008086d00004232svsd00001305bcsci alias: pci:v00008086d00004232svsd00001205bcsci alias: pci:v00008086d00004232svsd00001304bcsci alias: pci:v00008086d00004232svsd00001204bcsci alias: pci:v00008086d00004232svsd00001301bcsci alias: pci:v00008086d00004232svsd00001201bcsci depends: cfg80211 intree: y vermagic: 4.4.0-45-generic smp mod_unload modversions parm: swcrypto:using crypto in software (default 0 [hardware]) (int) parm: 11n_disable:disable 11n functionality, bitmap: 1: full, 2: disable agg tx, 4: disable agg rx, 8 enable agg tx (uint) parm: amsdu_size_8k:enable 8k amsdu size (default 0) (int) parm: fw_restart:restart firmware in case of error (default true) (bool) parm: antenna_coupling:specify antenna coupling in db (default: 0 db) (int) parm: nvm_file:nvm file name (charp) parm: d0i3_disable:disable d0i3 functionality (default: y) (bool) parm: lar_disable:disable lar functionality (default: n) (bool) parm: uapsd_disable:disable u-apsd functionality (default: y) (bool) parm: bt_coex_active:enable wifi/bt co-exist (default: enable) (bool) parm: led_mode:0=system default, 1=on(rf on)/off(rf off), 2=blinking, 3=off (default: 0) (int) parm: power_save:enable wifi power management (default: disable) (bool) parm: power_level:default power save level (range 1 - 5, default: 1) (int) parm: fw_monitor:firmware monitor - debug fw (default: false - needs lots of memory) (bool)

old answer removed, because know core issue now. original "guessing" of issue done in original answer can still read here.

the issue running network trying grab captive portal "authenticate" on network.

this means web request, when aren't authenticated on network, sent captive portal. hsts protections on specific sites result in errors these, https errors "invalid ssl certificate domain" https sites you're requesting.

you need go non-https site first through captive portal, , can browse https sites without issue, likely. can use site such cnn.com or else doesn't need https/ssl. once past captive portal, should not see issue anymore browsing https sites.

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browser plugins https everywhere can break this, too, because tries remember certificate in use.