As for how to upgrade the router. Serial / TFTP is always an option with TP-Link Atheros based routers. You will need to open up the device and attach something like this: https://www.adafruit.com/product/954
I have this router but it is currently bricked and I do not plan on spending the time to debrick it. The hardware is faulty. _________________ Before asking a question on the forums, update dd-wrt: Where do I download firmware? I suggest reading it all.
QCA Best WiFi Settings
Some dd-wrt wiki pages are up to date, others are not. PM me if you find an old one.
Atheros:
Netgear R7800 x3 - WDS AP / station, gateway, QoS
TP-Link Archer C7 v2 x2 - WDS Station
TP-Link TL-WDR3600 v1 - WDS Station
TP-Link 841nd v8 - NU
D-Link 615 C1/E3/I1 x 7 - 1 WDS station
D-Link 825 B1 - NU
D-Link 862L A1 x2 - WDS Station
Netgear WNDR3700v2 - NU
UBNT loco M2 x2 - airOS
Broadcom
Linksys EA6400 - Gateway, QoS
Asus N66U - AP
Netgear WNDR3700v3 - not used
MediaTek
UBNT EdgeRouter X - switch
xxx@xxx:/tmp# write tl-wr1043nd-webflash.bin linux
function stop_pppoeserver not found
The kernel doesn't support the ebtables 'nat' table.
function stop_freeradius not found
Image too big for partition: linux
linux: Invalid argument