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Old 12-19-2017, 02:30 PM   #1
MF1296
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Can't connect to WPA secured Hotspot on Fedora 27


Hello,

I want to setup a WIFI Hotspot with my laptop. Until now I tried it with the KDE interface of NetworkManager (shared WIFI network), as it is described in many tutorials. Everything works fine when the network is unprotected. But as soon as I try to configure a WPA protection, I'm not able any more to connect to the AP via my Android phone. It says: "authentication error - wrong password", but the password is correct. I've tried several ones with different symbols and different lengths, but no chance to connect. My WIFI stick is the following:

Edimax Technology Co., Ltd EW-7811Un 802.11n Wireless Adapter [Realtek RTL8188CUS]

Any ideas what could have gone wrong? Thank's in advance.

MF1296
 
Old 12-21-2017, 07:34 AM   #2
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Hello & Welcome to LQ.

I fell for this one once. The password you need is in the output of the wpa_passphrase program.

It has a man page and gives you a block to insert in wpa_supplicant.conf
 
Old 12-21-2017, 02:37 PM   #3
MF1296
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Thank you for helping me. I just tried it and I got a block similar to this:

Code:
network={
       ssid="myssid"
       #psk="mypsk"
       psk='hex number'
}
I put this into wpa_supplicant.conf and tried it again, but it didn't work either. Am I right, that I have to enter the normal passphrase into my mobile phone or do I have to use the hex number?
 
Old 12-22-2017, 04:17 AM   #4
business_kid
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Your mobile phone handles the password you set, and translates it into the hex number. Post the terminal output of
# dhclient wlan0
# iwconfig
 
Old 12-22-2017, 07:16 AM   #5
MF1296
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Ok, now I understand how it works.
As wlp0s29u1u2 is the interface I want to configure as a Hotspot, dhclient wlp0s29u1u2 doesn't give any output. The output of iwconfig is the following:

Code:
wlp0s29u1u2  IEEE 802.11  Mode:Master  Tx-Power=20 dBm   
          Retry short limit:7   RTS thr=2347 B   Fragment thr:off
          Power Management:off
          
enp9s0    no wireless extensions.

lo        no wireless extensions.
 
Old 12-22-2017, 11:17 AM   #6
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Quote:
Originally Posted by MF1296 View Post
Ok, now I understand how it works.
As wlp0s29u1u2 is the interface I want to configure as a Hotspot, dhclient wlp0s29u1u2 doesn't give any output. The output of iwconfig is the following:

Code:
wlp0s29u1u2  IEEE 802.11  Mode:Master  Tx-Power=20 dBm   
          Retry short limit:7   RTS thr=2347 B   Fragment thr:off
          Power Management:off
          
enp9s0    no wireless extensions.

lo        no wireless extensions.
No wonder you can't connect. You're in master mode(= Server Mode), offering connections. But if you're a client wanting to connect, you want to be in 'managed' mode. Now you have to figure out where to change that using networkmanager. I imagine the following approach might help
Code:
grep -irn master <config files>
That will do a case insensitive recursive search through networkmanager's bloated setup and return a line number with the word 'master' in it. If it's not commented out, it might actually find the offending config line. Replace it with 'managed' and try again.
 
Old 12-22-2017, 01:25 PM   #7
MF1296
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Oh, I'm sorry, but I think you missunderstood me. I want to configure an AP on my Fedora system and connect to it with my Android phone (client).
 
Old 12-22-2017, 02:20 PM   #8
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Oh, you're the access point? Sorry, I did misunderstand you.

The approach there is simpler You have to
  1. Run a dhcp Server - it might be useful to post the config
  2. Check up on your wifi driver. Many of them can't actually do Master mode. No harm to share what card you have with us if it's not a State secret.
  3. Turn off all passwording for the beginning to get connected. When you can log on that way, we will get the password Sorted.
  4. When you're connected, simplify and post your wpa_supplicant.conf

I seem to remember broadcom as particularly poor in not doing master mode. The 4312 certainly couldn't. I hope the drivers have improved. I can't see the sense of the guys in Broadcom keeping their working close to their chest thinking they'd sell more chips They sold less chips because people like me just put a black mark against any laptop with a broadcom chip.
 
Old 12-22-2017, 02:54 PM   #9
MF1296
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No problem.
Regarding your points:

1. As KNetworkManager did all the configuration automatically, it also configured dnsmasq as a dhcp server.
2. I bought my WIFI stick just because it is capable of master mode. I posted the exact hardware in my first answer.
3. Association without any encryption works out-of-the-box. Just when I try to use a WPA encryption, I'm not able anymore to connect.
4. My wpa_supplicant.conf is still the same like I posted above. I can show you the output of journalctl after the activation of the AP if it helps:

Code:
Dez 22 21:49:16 localhost.localdomain NetworkManager[752]: <info>  [1513975756.2308] device (wlp0s29u1u2): Activation: starting connection 'TP' (06171f99-55f6-499c-a39b-57a5c2b7043f)
Dez 22 21:49:16 localhost.localdomain NetworkManager[752]: <info>  [1513975756.2313] audit: op="connection-activate" uuid="06171f99-55f6-499c-a39b-57a5c2b7043f" name="TP" pid=1106 uid=1000 result="success"
Dez 22 21:49:16 localhost.localdomain NetworkManager[752]: <info>  [1513975756.2316] device (wlp0s29u1u2): state change: disconnected -> prepare (reason 'none', internal state 'managed')
Dez 22 21:49:16 localhost.localdomain NetworkManager[752]: <info>  [1513975756.2320] manager: NetworkManager state is now CONNECTING
Dez 22 21:49:16 localhost.localdomain dhclient[2429]: receive_packet failed on wlp0s29u1u2: Network is down
Dez 22 21:49:16 localhost.localdomain NetworkManager[752]: <info>  [1513975756.2750] device (wlp0s29u1u2): set-hw-addr: reset MAC address to 74:DA:38:88:70:FB (preserve)
Dez 22 21:49:16 localhost.localdomain kernel: rtl8192cu: MAC auto ON okay!
Dez 22 21:49:16 localhost.localdomain kernel: rtl8192cu: Tx queue select: 0x05
Dez 22 21:49:16 localhost.localdomain kernel: IPv6: ADDRCONF(NETDEV_UP): wlp0s29u1u2: link is not ready
Dez 22 21:49:16 localhost.localdomain NetworkManager[752]: <info>  [1513975756.8897] device (wlp0s29u1u2): supplicant interface state: disconnected -> disabled
Dez 22 21:49:16 localhost.localdomain NetworkManager[752]: <info>  [1513975756.8907] device (wlp0s29u1u2): state change: prepare -> config (reason 'none', internal state 'managed')
Dez 22 21:49:16 localhost.localdomain NetworkManager[752]: <info>  [1513975756.8918] device (wlp0s29u1u2): Activation: (wifi) access point 'TP' has security, but secrets are required.
Dez 22 21:49:16 localhost.localdomain NetworkManager[752]: <info>  [1513975756.8919] device (wlp0s29u1u2): state change: config -> need-auth (reason 'none', internal state 'managed')
Dez 22 21:49:16 localhost.localdomain NetworkManager[752]: <info>  [1513975756.9070] device (wlp0s29u1u2): state change: need-auth -> prepare (reason 'none', internal state 'managed')
Dez 22 21:49:16 localhost.localdomain NetworkManager[752]: <info>  [1513975756.9089] device (wlp0s29u1u2): state change: prepare -> config (reason 'none', internal state 'managed')
Dez 22 21:49:16 localhost.localdomain NetworkManager[752]: <info>  [1513975756.9092] device (wlp0s29u1u2): Activation: (wifi) connection 'TP' has security, and secrets exist.  No new secrets needed.
Dez 22 21:49:16 localhost.localdomain NetworkManager[752]: <info>  [1513975756.9092] Config: added 'ssid' value 'TP'
Dez 22 21:49:16 localhost.localdomain NetworkManager[752]: <info>  [1513975756.9093] Config: added 'mode' value '2'
Dez 22 21:49:16 localhost.localdomain NetworkManager[752]: <info>  [1513975756.9093] Config: added 'frequency' value '2412'
Dez 22 21:49:16 localhost.localdomain NetworkManager[752]: <info>  [1513975756.9093] Config: added 'key_mgmt' value 'WPA-PSK'
Dez 22 21:49:16 localhost.localdomain NetworkManager[752]: <info>  [1513975756.9093] Config: added 'psk' value '<hidden>'
Dez 22 21:49:16 localhost.localdomain wpa_supplicant[1581]: Note: nl80211 driver interface is not designed to be used with ap_scan=2; this can result in connection failures
Dez 22 21:49:16 localhost.localdomain NetworkManager[752]: <info>  [1513975756.9151] device (wlp0s29u1u2): supplicant interface state: disabled -> disconnected
Dez 22 21:49:16 localhost.localdomain kdeinit5[1067]: plasma-nm: Unhandled active connection state change:  1
Dez 22 21:49:16 localhost.localdomain kernel: IPv6: ADDRCONF(NETDEV_CHANGE): wlp0s29u1u2: link becomes ready
Dez 22 21:49:16 localhost.localdomain NetworkManager[752]: <info>  [1513975756.9493] device (wlp0s29u1u2): supplicant interface state: disconnected -> completed
Dez 22 21:49:16 localhost.localdomain wpa_supplicant[1581]: Using interface wlp0s29u1u2 with hwaddr 74:da:38:88:70:fb and ssid "TP"
Dez 22 21:49:16 localhost.localdomain audit: NETFILTER_CFG table=filter family=2 entries=79
Dez 22 21:49:16 localhost.localdomain audit: NETFILTER_CFG table=nat family=2 entries=50
Dez 22 21:49:16 localhost.localdomain audit: NETFILTER_CFG table=mangle family=2 entries=39
Dez 22 21:49:16 localhost.localdomain audit: NETFILTER_CFG table=raw family=2 entries=27
Dez 22 21:49:16 localhost.localdomain NetworkManager[752]: <info>  [1513975756.9494] device (wlp0s29u1u2): Activation: (wifi) Stage 2 of 5 (Device Configure) successful.  Started Wi-Fi Hotspot 'TP'.
Dez 22 21:49:16 localhost.localdomain wpa_supplicant[1581]: wlp0s29u1u2: interface state UNINITIALIZED->ENABLED
Dez 22 21:49:16 localhost.localdomain wpa_supplicant[1581]: wlp0s29u1u2: AP-ENABLED
Dez 22 21:49:16 localhost.localdomain wpa_supplicant[1581]: wlp0s29u1u2: CTRL-EVENT-CONNECTED - Connection to 74:da:38:88:70:fb completed [id=0 id_str=]
Dez 22 21:49:16 localhost.localdomain audit: NETFILTER_CFG table=filter family=10 entries=80
Dez 22 21:49:16 localhost.localdomain audit: NETFILTER_CFG table=nat family=10 entries=50
Dez 22 21:49:16 localhost.localdomain audit: NETFILTER_CFG table=mangle family=10 entries=39
Dez 22 21:49:16 localhost.localdomain audit: NETFILTER_CFG table=raw family=10 entries=29
Dez 22 21:49:16 localhost.localdomain NetworkManager[752]: <info>  [1513975756.9658] device (wlp0s29u1u2): state change: config -> ip-config (reason 'none', internal state 'managed')
Dez 22 21:49:16 localhost.localdomain avahi-daemon[663]: Joining mDNS multicast group on interface wlp0s29u1u2.IPv4 with address 10.42.0.1.
Dez 22 21:49:16 localhost.localdomain avahi-daemon[663]: New relevant interface wlp0s29u1u2.IPv4 for mDNS.
Dez 22 21:49:16 localhost.localdomain avahi-daemon[663]: Registering new address record for 10.42.0.1 on wlp0s29u1u2.IPv4.
Dez 22 21:49:16 localhost.localdomain NetworkManager[752]: <info>  [1513975756.9905] Executing: /usr/sbin/iptables --table filter --insert INPUT --in-interface wlp0s29u1u2 --protocol tcp --destination-port 53 --jump ACCEPT
Dez 22 21:49:16 localhost.localdomain audit: NETFILTER_CFG table=filter family=2 entries=82
Dez 22 21:49:16 localhost.localdomain NetworkManager[752]: <info>  [1513975756.9940] Executing: /usr/sbin/iptables --table filter --insert INPUT --in-interface wlp0s29u1u2 --protocol udp --destination-port 53 --jump ACCEPT
Dez 22 21:49:16 localhost.localdomain audit: NETFILTER_CFG table=filter family=2 entries=83
Dez 22 21:49:16 localhost.localdomain NetworkManager[752]: <info>  [1513975756.9974] Executing: /usr/sbin/iptables --table filter --insert INPUT --in-interface wlp0s29u1u2 --protocol tcp --destination-port 67 --jump ACCEPT
Dez 22 21:49:17 localhost.localdomain audit: NETFILTER_CFG table=filter family=2 entries=84
Dez 22 21:49:17 localhost.localdomain NetworkManager[752]: <info>  [1513975757.0006] Executing: /usr/sbin/iptables --table filter --insert INPUT --in-interface wlp0s29u1u2 --protocol udp --destination-port 67 --jump ACCEPT
Dez 22 21:49:17 localhost.localdomain audit: NETFILTER_CFG table=filter family=2 entries=85
Dez 22 21:49:17 localhost.localdomain NetworkManager[752]: <info>  [1513975757.0041] Executing: /usr/sbin/iptables --table filter --insert FORWARD --in-interface wlp0s29u1u2 --jump REJECT
Dez 22 21:49:17 localhost.localdomain audit: NETFILTER_CFG table=filter family=2 entries=86
Dez 22 21:49:17 localhost.localdomain NetworkManager[752]: <info>  [1513975757.0071] Executing: /usr/sbin/iptables --table filter --insert FORWARD --out-interface wlp0s29u1u2 --jump REJECT
Dez 22 21:49:17 localhost.localdomain audit: NETFILTER_CFG table=filter family=2 entries=87
Dez 22 21:49:17 localhost.localdomain NetworkManager[752]: <info>  [1513975757.0098] Executing: /usr/sbin/iptables --table filter --insert FORWARD --in-interface wlp0s29u1u2 --out-interface wlp0s29u1u2 --jump ACCEPT
Dez 22 21:49:17 localhost.localdomain audit: NETFILTER_CFG table=filter family=2 entries=88
Dez 22 21:49:17 localhost.localdomain NetworkManager[752]: <info>  [1513975757.0125] Executing: /usr/sbin/iptables --table filter --insert FORWARD --source 10.42.0.0/255.255.255.0 --in-interface wlp0s29u1u2 --jump ACCEPT
Dez 22 21:49:17 localhost.localdomain audit: NETFILTER_CFG table=filter family=2 entries=89
Dez 22 21:49:17 localhost.localdomain NetworkManager[752]: <info>  [1513975757.0157] Executing: /usr/sbin/iptables --table filter --insert FORWARD --destination 10.42.0.0/255.255.255.0 --out-interface wlp0s29u1u2 --match state --state ESTABLISHED,RELATED --jump ACCEPT
Dez 22 21:49:17 localhost.localdomain audit: NETFILTER_CFG table=filter family=2 entries=90
Dez 22 21:49:17 localhost.localdomain NetworkManager[752]: <info>  [1513975757.0199] Executing: /usr/sbin/iptables --table nat --insert POSTROUTING --source 10.42.0.0/255.255.255.0 ! --destination 10.42.0.0/255.255.255.0 --jump MASQUERADE
Dez 22 21:49:17 localhost.localdomain audit: NETFILTER_CFG table=nat family=2 entries=52
Dez 22 21:49:17 localhost.localdomain NetworkManager[752]: <info>  [1513975757.0241] dnsmasq-manager: starting dnsmasq...
Dez 22 21:49:17 localhost.localdomain NetworkManager[752]: <info>  [1513975757.0266] device (wlp0s29u1u2): state change: ip-config -> ip-check (reason 'none', internal state 'managed')
Dez 22 21:49:17 localhost.localdomain dbus-daemon[644]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service' requested by ':1.12' (uid=0 pid=752 comm="/usr/sbin/NetworkManager --no-daemon " label="system_u:system_r:NetworkManager_t:s0")
Dez 22 21:49:17 localhost.localdomain dnsmasq[13578]: started, version 2.78 cachesize 150
Dez 22 21:49:17 localhost.localdomain dnsmasq[13578]: compile time options: IPv6 GNU-getopt DBus no-i18n IDN2 DHCP DHCPv6 no-Lua TFTP no-conntrack ipset auth DNSSEC loop-detect inotify
Dez 22 21:49:17 localhost.localdomain dnsmasq-dhcp[13578]: DHCP, IP range 10.42.0.10 -- 10.42.0.254, lease time 1h
Dez 22 21:49:17 localhost.localdomain dnsmasq[13578]: no servers found in /etc/resolv.conf, will retry
Dez 22 21:49:17 localhost.localdomain dnsmasq[13578]: cleared cache
Dez 22 21:49:17 localhost.localdomain systemd[1]: Starting Network Manager Script Dispatcher Service...
-- Subject: Unit NetworkManager-dispatcher.service has begun start-up
-- Defined-By: systemd
-- Support: https://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit NetworkManager-dispatcher.service has begun starting up.
Dez 22 21:49:17 localhost.localdomain dbus-daemon[644]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
Dez 22 21:49:17 localhost.localdomain audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg='unit=NetworkManager-dispatcher comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Dez 22 21:49:17 localhost.localdomain systemd[1]: Started Network Manager Script Dispatcher Service.
-- Subject: Unit NetworkManager-dispatcher.service has finished start-up
-- Defined-By: systemd
-- Support: https://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit NetworkManager-dispatcher.service has finished starting up.
-- 
-- The start-up result is done.
Dez 22 21:49:17 localhost.localdomain nm-dispatcher[13579]: req:1 'pre-up' [wlp0s29u1u2]: new request (1 scripts)
Dez 22 21:49:17 localhost.localdomain NetworkManager[752]: <info>  [1513975757.0578] device (wlp0s29u1u2): state change: ip-check -> secondaries (reason 'none', internal state 'managed')
Dez 22 21:49:17 localhost.localdomain NetworkManager[752]: <info>  [1513975757.0582] device (wlp0s29u1u2): state change: secondaries -> activated (reason 'none', internal state 'managed')
Dez 22 21:49:17 localhost.localdomain NetworkManager[752]: <info>  [1513975757.0586] manager: NetworkManager state is now CONNECTED_LOCAL
Dez 22 21:49:17 localhost.localdomain NetworkManager[752]: <info>  [1513975757.1040] device (wlp0s29u1u2): Activation: successful, device activated.
Dez 22 21:49:17 localhost.localdomain nm-dispatcher[13579]: req:2 'up' [wlp0s29u1u2]: new request (5 scripts)
Dez 22 21:49:17 localhost.localdomain nm-dispatcher[13579]: req:2 'up' [wlp0s29u1u2]: start running ordered scripts...
Dez 22 21:49:17 localhost.localdomain systemd[1]: iscsi.service: Unit cannot be reloaded because it is inactive.
Dez 22 21:49:18 localhost.localdomain avahi-daemon[663]: Joining mDNS multicast group on interface wlp0s29u1u2.IPv6 with address fe80::76da:38ff:fe88:70fb.
Dez 22 21:49:18 localhost.localdomain avahi-daemon[663]: New relevant interface wlp0s29u1u2.IPv6 for mDNS.
Dez 22 21:49:18 localhost.localdomain avahi-daemon[663]: Registering new address record for fe80::76da:38ff:fe88:70fb on wlp0s29u1u2.*.
Dez 22 21:49:27 localhost.localdomain audit[1]: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg='unit=NetworkManager-dispatcher comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
 
Old 12-23-2017, 04:31 AM   #10
business_kid
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Wow! You've reminded me never to use networkmanager if I can possibly avoid it. What a load of log spam it gives out. Looking at it, some points are noteworthy
Code:
bash: syntax error near unexpected token `('
bash: info: No such file or directory
bash: Dez: command not found
22 21:49:16 localhost.localdomain NetworkManager[752]: <info>  [1513975756.8907] device (wlp0s29u1u2): state change: prepare -> config (reason 'none', internal state 'managed')
bash: syntax error near unexpected token `('
bash-4.3$ Dez 22 21:49:16 localhost.localdomain NetworkManager[752]: <info>  [1513975756.8918] device (wlp0s29u1u2): Activation: (wifi) access point 'TP' has security, but secrets are required.
bash: syntax error near unexpected token `('
bash-4.3$ Dez 22 21:49:16 localhost.localdomain NetworkManager[752]: <info>  [1513975756.8919] device (wlp0s29u1u2): state change: config -> need-auth (reason 'none', internal state 'managed')
bash: syntax error near unexpected token `('
bash-4.3$ Dez 22 21:49:17 localhost.localdomain dnsmasq[13578]: no servers found in /etc/resolv.conf, will retry
bash: Dez: command not found
I would try to remove those bash errors. That can change a lot. I'm seeing far too much of the word 'managed' and no mention of the word 'master'. A search for 'wpa_supplicant server mode' produced some interesting hits. I'll bet if you configured a hotspot on your phone you could connect to it. I'm glad this is your headache and not mine.
 
  


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