Openwrt | W1700k

| Issue | Workaround | |-------|-------------| | Boot loop after sysupgrade | Use tftp recovery (hold reset for 30 seconds during power-on) | | No Wi-Fi 6 GHz band | Requires kmod-ath11k and board-specific DTB; not enabled in generic builds | | LAN ports reversed order | Add ucidef_set_interface_lan "eth1 eth2 eth3" in /etc/rc.local | | Low NSS performance | Check dmesg for firmware crash logs; reinstall qca-nss-ecm |

The Linksys WRT1700K is a capable router for home power-users and hobbyists who want full control over routing, wireless, and firewall features. Replacing the stock firmware with OpenWrt unlocks advanced customization, better security updates, package-based extensibility, and finer control over network behavior. This post explains compatibility, preparation, installation options, and post-installation tips.

Edit /etc/config/wireless:

config wifi-device 'radio0' # 2.4 GHz
    option type 'qcawificfg80211'
    option hwmode '11ax'
    option channel 'auto'
    option country 'US'
config wifi-iface 'default_radio0'
option device 'radio0'
option mode 'ap'
option ssid 'OpenWrt-2G'
option encryption 'sae'
option key 'yourpassword'

(Repeat for 5 GHz – radio1 – with hwmode 11ax and channel 36)

Linksys routers utilize a dual-partition layout. This is a safety net: if you brick the router while flashing, you can simply boot into the secondary partition and recover it. w1700k openwrt

When flashing, you are essentially writing OpenWrt to the other slot than the one currently running.

NSS cores handle packets without CPU load – critical for 1 Gbps+ Wi-Fi/routing. | Issue | Workaround | |-------|-------------| | Boot

opkg update
opkg install kmod-qca-nss-dp kmod-qca-nss-ecm
uci set firewall.@defaults[0].flow_offloading='1'
uci set firewall.@defaults[0].flow_offloading_hw='1'
uci commit firewall
service firewall restart