Still auto hang even with light usage with default firmware.
Anyway....

C1200v1_eu-up-1.1.1 Build 20180101 rel.66049(Beta)
http://support.tp-link.com/f/83ec721f22/?dl=1

C1200v2_eu-up-2.0.1 Build 20180101 rel.59123(Beta)
http://support.tp-link.com/f/afccc09878/?dl=1

C1200v1_us-up-1.1.0 Build 20171230 rel.62364(Beta)
http://support.tp-link.com/f/ff5667e274/?dl=1

Archer C1200(US)_V2_180103 (Official)
http://www.tp-link.com/us/download/Archer-...2.html#Firmware

Note: All router settings will reset after updating to new firmware, please backup the configuration at Advanced, Sytem Tools, Backup&Restore, update the the new correct firmware and restore the configuration later. Much less trouble.

Bolded the region and revision number.
Update: So far, beta firmware for c1200 EU v1 = been torrenting for 18 hours and still hasn't encounter random reboot.....

anyone has any idea how to setup ipv6 on Archer C2100?

Sorry guys, how to check my C1200 version 1 or version 2 ?

I read NAT Boost/ acceleration should be disabled for speed less than 100mbps.

TM just gave me Archer C1200 yesterday and I updated the Firmware , WRONGLY      to international version instead of Malaysia TM Unifi firmware. Everything still works, only the IPV6 settings all gone.

Is it possible to update the firmware back to Malaysia version ?  

I can confirm that this beta firmware should include the fix for the random reboot issue.

Expect the official release to be out soon but let's make a backup of this firmware just in case if they decided to enforce @unifi for the Malaysia firmware.

I can confirm that this beta firmware should include the fix for the random reboot issue.

Expect the official release to be out soon but let's make a backup of this firmware just in case if they decided to enforce @unifi for the Malaysia firmware.

I only disable Print Server and WPS at System Parameter.

SPI Firewall activated.
ALG all checked
NAT Boost enabled
Folder Share enabled, plugged 64Gb pendrive to the USB.
UPNP active = manual portforwarding can be a hassle.
IPV6 enabled
OpenVPN server enabled = often use this functionality to vpn back home when I was at work (before getting layoff  )
DDNS = got few D-Link adsl routers which have free DlinkDns services, used the account with C1200.
Enabling TxBF for 5Ghz wifi.

I tried to backup all the settings from default Malaysia firmware before updating to international firmware.

However, I was not able to restore back the settings from the restore option. Could it be that the setting backup from older firmware cannot be used for new firmware?

Thanks! How about LED? he he he

Will flash it when I got home

oh and do you see high CPU?

LED? The usual night mode or ON/OFF still there as usual.
CPU usage = same as the original firmware, high as usual. Not a big deal considering torrenting makes a lot of connection.

-.-.....Enable it.
Otherwise, the LAN to LAN transfer speed through router will suffer.
...

This is most likely incorrect but I don't have a C1200 to confirm. Nat Boost on or off should not affect LAN-LAN.

International firmware? You installed the right one. Nobody in their right mind want to use Malaysia version.
Indeed...just in case. I sure don't want to be part of TM marketing tool.
I believe TP-Link will release an international version for EU V1 too.
19 hours plus and counting, still no random reboot on my torrent session with 500+ connections right now.

I just saw about the bonanza upgrade and all 
is it too late to try to apply?

Agree with you on NOT becoming TM marketing tool. There is no point for them to put the ‘@unifi’ at all on the SSID. I just changed my router to my own router rather than using the router which name can’t be changed to something that I want, although I pay for it!

Am keenly awaiting the release of the new firmware. Seems like the new firmware is using the same layout as the C3150 v2. Is there an antivirus included as well on the ‘Security’ tab? Would be good news if they implement for all their routers.

flashed my c1200 with the beta firmware. It is unstable at the moment. But now okay. Will test the router for about a week to see how it goes. Wanna test kaw kaw. haha.

CPU load is freaking high no matter how many times i refresh it. Lmao.

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Nah, You are a bit too late, it ends on 31/12 of last year.