[搜索无果，不懂就问] 刷了 openwrt 之后连不上网

手里有个闲置的路由，刚刷了 openwrt ，想在公司随便用用
但是配置后有线接公司内网插口，电脑连 wifi ，根本上不了网，查了半天也一头雾水，只能来求教了。。。

根据官网和网上各种教程，配置如下
到底是哪里不对啊。。。。。。

/etc/config/dhcp

config dnsmasq
option domainneeded '1'
option boguspriv '1'
option filterwin2k '0'
option localise_queries '1'
option rebind_protection '1'
option rebind_localhost '1'
option local '/lan/'
option domain 'lan'
option expandhosts '1'
option nonegcache '0'
option authoritative '1'
option readethers '1'
option leasefile '/tmp/dhcp.leases'
option resolvfile '/tmp/resolv.conf.auto'
option localservice '1'

config dhcp 'lan'
option interface 'lan'
option start '100'
option limit '150'
option leasetime '12h'
option dhcpv6 'server'
option ra 'server'

config dhcp 'wan'
option interface 'wan'
option ignore '1'

config odhcpd 'odhcpd'
option maindhcp '0'
option leasefile '/tmp/hosts/odhcpd'
option leasetrigger '/usr/sbin/odhcpd-update'

/etc/config/network

config interface 'loopback'
option ifname 'lo'
option proto 'static'
option ipaddr '127.0.0.1'
option netmask '255.0.0.0'

config globals 'globals'
option ula_prefix ''

config interface 'lan'
option type 'bridge'
# option ifname 'eth0'
option proto 'static'
option ipaddr '192.168.2.1'
option netmask '255.255.255.0'
option ip6assign '60'

config interface 'wan'
option ifname 'eth0'
option proto 'dhcp'

/etc/config/wireless

config wifi-device radio0
option type mac80211
option channel 11
option hwmode 11g
option path 'platform/ar933x_wmac'
option htmode HT20
# REMOVE THIS LINE TO ENABLE WIFI:

config wifi-iface
option device radio0
option network lan
option mode ap
option ssid OpenWrt
option encryption psk2
option key ''