TP-Link Archer C50 (EU) V6.0 - 5 Ghz interface not present

Hi,

I bought an TP-Link Archer C50 (EU) V6.0 router. Since there is currently no dedicated firmware version (device seems to be very recent), I went with the instructions for v5 as described here: https://openwrt.org/toh/tp-link/archer-c50#v4_and_v5_instructions
I decided to manually build the firmware (dd if=...).

Flashing via TFTP succeeded. However, after logging in I am only able to see the 2.4 Ghz device.

I've added some debugging output below. Any idea if and how I can get the 5 Ghz interface running?

Many thanks,

Maik

Some debugging output:

# iwinfo 
wlan0     ESSID: unknown
          Access Point: 90:9A:4A:11:AA:70
          Mode: Client  Channel: unknown (unknown)
          Tx-Power: 22 dBm  Link Quality: unknown/70
          Signal: unknown  Noise: unknown
          Bit Rate: unknown
          Encryption: unknown
          Type: nl80211  HW Mode(s): 802.11bgn
          Hardware: unknown [Generic MAC80211]
          TX power offset: unknown
          Frequency offset: unknown
          Supports VAPs: yes  PHY name: phy0

lsmod:

...
mac80211              442336  5 ath10k_core,mt76x2e,mt76x02_lib,mt7603e,mt76
mt76                   30752  4 mt76x2e,mt76x2_common,mt76x02_lib,mt7603e
mt7603e                36896  0 
mt76x02_lib            38464  2 mt76x2e,mt76x2_common
mt76x2_common          10784  1 mt76x2e
mt76x2e                 9728  0 
...

dmesg:

...
[   11.059794] mt76_wmac 10300000.wmac: ASIC revision: 76280001
[   11.141189] random: crng init done
[   11.144651] random: 6 urandom warning(s) missed due to ratelimiting
[   12.099074] mt76_wmac 10300000.wmac: Firmware Version: 20151201
[   12.105095] mt76_wmac 10300000.wmac: Build Time: 20151201183641
[   12.146729] mt76_wmac 10300000.wmac: firmware init done
[   12.313224] ieee80211 phy0: Selected rate control algorithm 'minstrel_ht'
[   12.420442] PPP generic driver version 2.4.2
[   12.437762] NET: Registered protocol family 24
[   13.389965] kmodloader: done loading kernel modules from /etc/modules.d/*
[   18.657349] rt3050-esw 10110000.esw: link changed 0x00
...

I was waiting for someone to answer you.

I think that SoC is not same in v6 as in v4, v5.
MediaTek MT7628A (N same)
MediaTek MT7612E (AC not same)

Tnx for respondig!

As I am new to the OpenWrt game - what does "soc" mean? And can I do something to get 5 Ghz working? If e.g. building a custom OpenWrt snapshot would be an option please give me some hints. Generally I am not scared of build systems :wink:.

I don't know about the topic.
I can only help you with this.

rm -f /etc/config/wireless
wifi config

Source: https://openwrt.org/docs/guide-user/network/wifi/basic#regenerate_configuration

does everything else work fine (ethernet ports, wifi 2.4)?