Yes.

The latest beta EU version actually removed 2.4ghz channel 12 and 13.
Official EU and Malaysia version still contain 2.4ghz channel 1 to 13.

Don't worry, can use tftp method to reflash back.

Using TFTP or normal method after your power failure?

Read the source yourself
 core_qos.rtf ( 20.9k ) Number of downloads: 28

Open using wordpad.


Post a screenshot of your wifi analyzer result. I am quite skeptical.

Not much changes from C1200v1_eu_tm-up-1.0.0 Build 20180403
Only these two lines are removed for the C1200v1_eu-up-1.1.3 Build 20180502 from firewall.include:
iptables -t filter -I zone_wan_forward -j MINIUPNPD
iptables -t nat -I zone_wan_prerouting -j MINIUPNPD

Probably it was done to solve that UPNP issue as reported by the poster at TP-Link forum.

This post has been edited by JohnLai: May 22 2018, 09:56 PM

C1200 V1 has 5ghz beamforming only. It can be found at Advanced, System Tools, System Parameters = an option called TX Beamforming.

-.- Do read the warning before you update.
I am tired of dealing with people who regret updating to EU firmware.

Oi.....EU firmware has limited 5Ghz channels = 36, 40, 44, 48 only

Reconsider it......

*devil advocate*

For one, the higher channel U-NII-3 is supposed to have higher power output (longer range etc)........ which isn't the case with C1200. I tested it after gaining root access.

Without it, maybe the only benefit is less 5ghz interference between your neighbours' router?

Not sure about your main router, but you could try the higher band 161 (165 will appear if you select 20mhz only) and compare the dbm using wifi analyser app.

For the c1200, it is disappointing.
Channel 36 signal strength (in dbm) is stronger than channel 165.

Try to get the -dbm result for comparison before you make permanent change on 5ghz channel selection.

Here is my c1200;
36 = -44dBm
161 = -52dBm
(The closer to 0dBm, the better the signal)
The fact the -dbm drops as frequency get higher means c1200 transmit same power level as U-NII-1 channel.
If it is transmitting at at 1W when higher channel is selected, probably the -dbm would be similar or stronger than channel 36.

Anyway, the EU version AP mode is exactly same as described at https://www.tp-link.com/us/faq-2066.html.

Well.....my condolences........

Since you have nothing to lose with higher channels (other than possible interference issue from neighbour who use same channel 36 - 48), might as well as upgrade to EU firmware for AP mode?
It is one way firmware upgrade, there is no going back (although I got back my 5ghz channels [36-48 and 149-165] through the root access)

EDIT:
Nope, no 'advanced' settings can solve it.

Although 5ghz beamforming could help a bit.....

This post has been edited by JohnLai: May 23 2018, 01:40 AM

I was saying root SSH access to the router.....it is different than your "admin" access.
Go to LEDE forum and search for c1200, scroll down to post 40+ something.

The EU firmware upgrade doesn't take away support for unifi. I am using EU firmware and hypptv (LAN Port 1 if you select the Unifi preset) working as usual.


Ah...pardon me, I just check C1200v1_eu_tm-up-1.0.0 Build 20180403 and C1200v1_eu_tm-up-boot-1.0.0 Build 20180208, apparently, there is no beamforming setting for both.
Seem like all Malaysia c1200 v1 firmware don't have 5Ghz beamforming .

I don't think there is issue with the firmware.
Decompress it first.

To be exact, Unifi.
I checked the firmware and there is @unifi at the wireless string.

edit:





This post has been edited by JohnLai: May 26 2018, 07:46 PM

......-.-....read the second page?

Something is not right with TP-Link website since yesterday.
Even their forums are browseable just now after down for whole day. Might be temporary outage?

This post has been edited by JohnLai: Jun 23 2018, 08:27 PM

eh? You want the beta firmware?

Here is it then, luckily I keep all the firmware around.

C1200v1_eu-up-1.1.3 Build 20180502 rel.46288_2018-05-02_13.47.59
https://ufile.io/xfx0v

Oh? You didn't regret missing the other 5ghz channels and 2.4ghz channel 12+13?
This is rare....most people decide not to upgrade to EU version because of the limitation.

I choose features (AP mode + 5ghz beamforming + security) over those limitations. (I have my 5ghz and 2.4ghz channels back anyway )

Remember to activate 5ghz beamforming at Advanced, System Tools, System Parameter, TX Beamforming.

C1200 V1 has 5ghz beamforming once you flashed the EU firmware.

Go find it at Advanced --> System Tools --> System Parameter --> 5ghz wireless --> TX Beamforming --> Tick Enable TXBF --> Save

Get access to router SSH, then get root access, backup_config.bin, decrypt backup_config.bin, modify config.xml + set the xml region to MY, reencrypt + repack again, use "uci set wireless.eth2.country=MY" "uci set wireless.eth3.country=MY", then you can upload the modified backup_config.bin successfully. Reboot and done.

You will get channel 36 - 48 and 149 - 165 back at webui. You can't set the middle channel 120 etc at webui, however you can use "uci wireless.eth2.channel=120" to force it and adjust the modified backup_config.bin accordingly.