Hi,
I've tried 3 power supplies. One has 16V open and 14.5V load voltage one with 15 / 14V and another with 11.5 / 9V. It makes no difference. Whit only 8V the box reboots frequently. Since it is quite stable otherwise I don't think this is a hardware problem.
As for hostapd I've disabled WPA-EAP and CCMP and enabled only WPA-PSK/TKIP. The rest is default. Take care with the passphrase if you enter quotes or trailing spaces they will be included.
The most reliably sequence I've found to load the thing is to create the bridge only with the LAN interface.
#### LAN configuration
lan_proto="dhcp"
lan_ifname="br0"
lan_ifnames="vlan0"
lan_ipaddr="192.168.1.1"
# lan_dns="192.168.1.1"
# lan_gateway="192.168.1.1"
Then starting hostapd and adding the WLAN to the bridge.
hostapd -B -dd /etc/hostapd.conf
brctl addif br0 ath0
This is the hostapd.conf:
##### hostapd configuration file ##############################################
# Empty lines and lines starting with # are ignored
# AP netdevice name (without 'ap' prefix, i.e., wlan0 uses wlan0ap for
# management frames)
interface=ath0
# In case of madwifi driver, an additional configuration parameter, bridge,
# must be used to notify hostapd if the interface is included in a bridge. This
# parameter is not used with Host AP driver.
bridge=br0
# Driver interface type (hostap/wired/madwifi; default: hostap)
driver=madwifi
# hostapd event logger configuration
#
# Two output method: syslog and stdout (only usable if not forking to
# background).
#
# Module bitfield (ORed bitfield of modules that will be logged; -1 = all
# modules):
# bit 0 (1) = IEEE 802.11
# bit 1 (2) = IEEE 802.1X
# bit 2 (4) = RADIUS
# bit 3 (8) = WPA
# bit 4 (16) = driver interface
# bit 5 (32) = IAPP
#
# Levels (minimum value for logged events):
# 0 = verbose debugging
# 1 = debugging
# 2 = informational messages
# 3 = notification
# 4 = warning
#
logger_syslog=-1
logger_syslog_level=2
logger_stdout=-1
logger_stdout_level=2
# Debugging: 0 = no, 1 = minimal, 2 = verbose, 3 = msg dumps, 4 = excessive
debug=0
# Dump file for state information (on SIGUSR1)
dump_file=/tmp/hostapd.dump
##### IEEE 802.11 related configuration #######################################
# SSID to be used in IEEE 802.11 management frames
ssid=greg
##### IEEE 802.1X-REV related configuration ###################################
# Require IEEE 802.1X authorization
#ieee8021x=1
# Optional displayable message sent with EAP Request-Identity. The first \0
# in this string will be converted to ASCII-0 (nul). This can be used to
# separate network info (comma separated list of attribute=value pairs); see,
# e.g., draft-adrangi-eap-network-discovery-07.txt.
#eap_message=hello
#eap_message=hello\0networkid=netw,nasid=foo,portid=0,NAIRealms=example.com
# WEP rekeying (disabled if key lengths are not set or are set to 0)
# Key lengths for default/broadcast and individual/unicast keys:
# 5 = 40-bit WEP (also known as 64-bit WEP with 40 secret bits)
# 13 = 104-bit WEP (also known as 128-bit WEP with 104 secret bits)
#wep_key_len_broadcast=5
#wep_key_len_unicast=5
# Rekeying period in seconds. 0 = do not rekey (i.e., set keys only once)
#wep_rekey_period=300
# EAPOL-Key index workaround (set bit7) for WinXP Supplicant (needed only if
# only broadcast keys are used)
eapol_key_index_workaround=0
# EAP reauthentication period in seconds (default: 3600 seconds; 0 = disable
# reauthentication).
#eap_reauth_period=3600
##### Integrated EAP server ###################################################
# Optionally, hostapd can be configured to use an integrated EAP server
# to process EAP authentication locally without need for an external RADIUS
# server. This functionality can be used both as a local authentication server
# for IEEE 802.1X/EAPOL and as a RADIUS server for other devices.
# Use integrated EAP server instead of external RADIUS authentication
# server. This is also needed if hostapd is configured to act as a RADIUS
# authentication server.
eap_server=0
# Path for EAP server user database
#eap_user_file=/etc/hostapd.eap_user
# CA certificate (PEM or DER file) for EAP-TLS/PEAP/TTLS
#ca_cert=/etc/hostapd.ca.pem
# Server certificate (PEM or DER file) for EAP-TLS/PEAP/TTLS
#server_cert=/etc/hostapd.server.pem
# Private key matching with the server certificate for EAP-TLS/PEAP/TTLS
# This may point to the same file as server_cert if both certificate and key
# are included in a single file. PKCS#12 (PFX) file (.p12/.pfx) can also be
# used by commenting out server_cert and specifying the PFX file as the
# private_key.
#private_key=/etc/hostapd.server.prv
# Passphrase for private key
#private_key_passwd=secret passphrase
# Enable CRL verification.
# Note: hostapd does not yet support CRL downloading based on CDP. Thus, a
# valid CRL signed by the CA is required to be included in the ca_cert file.
# This can be done by using PEM format for CA certificate and CRL and
# concatenating these into one file. Whenever CRL changes, hostapd needs to be
# restarted to take the new CRL into use.
# 0 = do not verify CRLs (default)
# 1 = check the CRL of the user certificate
# 2 = check all CRLs in the certificate path
#check_crl=1
# Configuration data for EAP-SIM database/authentication gateway interface.
# This is a text string in implementation specific format. The example
# implementation in eap_sim_db.c uses this as the file name for the GSM
# authentication triplets.
#eap_sim_db=/etc/hostapd.sim_db
##### IEEE 802.11f - Inter-Access Point Protocol (IAPP) #######################
# Interface to be used for IAPP broadcast packets
#iapp_interface=eth0
##### RADIUS client configuration #############################################
# for IEEE 802.1X with external Authentication Server, IEEE 802.11
# authentication with external ACL for MAC addresses, and accounting
# The own IP address of the access point (used as NAS-IP-Address)
own_ip_addr=127.0.0.1
# Optional NAS-Identifier string for RADIUS messages. When used, this should be
# a unique to the NAS within the scope of the RADIUS server. For example, a
# fully qualified domain name can be used here.
#nas_identifier=ap.example.com
# RADIUS authentication server
#auth_server_addr=127.0.0.1
#auth_server_port=1812
#auth_server_shared_secret=secret
# RADIUS accounting server
#acct_server_addr=127.0.0.1
#acct_server_port=1813
#acct_server_shared_secret=secret
# Secondary RADIUS servers; to be used if primary one does not reply to
# RADIUS packets. These are optional and there can be more than one secondary
# server listed.
#auth_server_addr=127.0.0.2
#auth_server_port=1812
#auth_server_shared_secret=secret2
#
#acct_server_addr=127.0.0.2
#acct_server_port=1813
#acct_server_shared_secret=secret2
# Retry interval for trying to return to the primary RADIUS server (in
# seconds). RADIUS client code will automatically try to use the next server
# when the current server is not replying to requests. If this interval is set,
# primary server will be retried after configured amount of time even if the
# currently used secondary server is still working.
#radius_retry_primary_interval=600
# Interim accounting update interval
# If this is set (larger than 0) and acct_server is configured, hostapd will
# send interim accounting updates every N seconds. Note: if set, this overrides
# possible Acct-Interim-Interval attribute in Access-Accept message. Thus, this
# value should not be configured in hostapd.conf, if RADIUS server is used to
# control the interim interval.
# This value should not be less 600 (10 minutes) and must not be less than
# 60 (1 minute).
#radius_acct_interim_interval=600
##### RADIUS authentication server configuration ##############################
# hostapd can be used as a RADIUS authentication server for other hosts. This
# requires that the integrated EAP authenticator is also enabled and both
# authentication services are sharing the same configuration.
# File name of the RADIUS clients configuration for the RADIUS server. If this
# commented out, RADIUS server is disabled.
#radius_server_clients=/etc/hostapd.radius_clients
# The UDP port number for the RADIUS authentication server
#radius_server_auth_port=1812
# Use IPv6 with RADIUS server (IPv4 will also be supported using IPv6 API)
#radius_server_ipv6=1
##### WPA/IEEE 802.11i configuration ##########################################
# Enable WPA. Setting this variable configures the AP to require WPA (either
# WPA-PSK or WPA-RADIUS/EAP based on other configuration). For WPA-PSK, either
# wpa_psk or wpa_passphrase must be set and wpa_key_mgmt must include WPA-PSK.
# For WPA-RADIUS/EAP, ieee8021x must be set (but without dynamic WEP keys),
# RADIUS authentication server must be configured, and WPA-EAP must be included
# in wpa_key_mgmt.
# This field is a bit field that can be used to enable WPA (IEEE 802.11i/D3.0)
# and/or WPA2 (full IEEE 802.11i/RSN):
# bit0 = WPA
# bit1 = IEEE 802.11i/RSN (WPA2) (dot11RSNAEnabled)
wpa=1
# WPA pre-shared keys for WPA-PSK. This can be either entered as a 256-bit
# secret in hex format (64 hex digits), wpa_psk, or as an ASCII passphrase
# (8..63 characters) that will be converted to PSK. This conversion uses SSID
# so the PSK changes when ASCII passphrase is used and the SSID is changed.
# wpa_psk (dot11RSNAConfigPSKValue)
# wpa_passphrase (dot11RSNAConfigPSKPassPhrase)
#wpa_psk=0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef
wpa_passphrase=passwordwithoutquotes
# Optionally, WPA PSKs can be read from a separate text file (containing list
# of (PSK,MAC address) pairs. This allows more than one PSK to be configured.
# Use absolute path name to make sure that the files can be read on SIGHUP
# configuration reloads.
#wpa_psk_file=/etc/hostapd.wpa_psk
# Set of accepted key management algorithms (WPA-PSK, WPA-EAP, or both). The
# entries are separated with a space.
# (dot11RSNAConfigAuthenticationSuitesTable)
wpa_key_mgmt=WPA-PSK
#WPA-EAP
# Set of accepted cipher suites (encryption algorithms) for pairwise keys
# (unicast packets). This is a space separated list of algorithms:
# CCMP = AES in Counter mode with CBC-MAC [RFC 3610, IEEE 802.11i/D7.0]
# TKIP = Temporal Key Integrity Protocol [IEEE 802.11i/D7.0]
# Group cipher suite (encryption algorithm for broadcast and multicast frames)
# is automatically selected based on this configuration. If only CCMP is
# allowed as the pairwise cipher, group cipher will also be CCMP. Otherwise,
# TKIP will be used as the group cipher.
# (dot11RSNAConfigPairwiseCiphersTable)
wpa_pairwise=TKIP
# CCMP
# Time interval for rekeying GTK (broadcast/multicast encryption keys) in
# seconds. (dot11RSNAConfigGroupRekeyTime)
wpa_group_rekey=600
# Rekey GTK when any STA that possesses the current GTK is leaving the BSS.
# (dot11RSNAConfigGroupRekeyStrict)
#wpa_strict_rekey=1
# Time interval for rekeying GMK (master key used internally to generate GTKs
# (in seconds).
wpa_gmk_rekey=86400
# Enable IEEE 802.11i/RSN/WPA2 pre-authentication. This is used to speed up
# roaming be pre-authenticating IEEE 802.1X/EAP part of the full RSN
# authentication and key handshake before actually associating with a new AP.
# (dot11RSNAPreauthenticationEnabled)
#rsn_preauth=1
#
# Space separated list of interfaces from which pre-authentication frames are
# accepted (e.g., 'eth0' or 'eth0 wlan0wds0'. This list should include all
# interface that are used for connections to other APs. This could include
# wired interfaces and WDS links. The normal wireless data interface towards
# associated stations (e.g., wlan0) should not be added, since
# pre-authentication is only used with APs other than the currently associated
# one.
#rsn_preauth_interfaces=eth0
