Archer C1200v1 – NEW FIRMWARE IS OUT!


I would like to use this opportunity to thank TP-LINK engineers for taking responsibility to listen to the users complaint and make an effort to overcome it to serve your loyal customers. Congrats TP-LINK.

Second thank goes to RoxyGal for highlighting us that the new firmware is out.

Date of the firmware downloaded: 30th January 2018

Firmware Version: 1.1.3 Build 20180124 rel.52299 (EU)

Number of days tested: 4 Days

Link to New Firmware: Download Here. Only for Hardware V1 (EU) version.

TP-LINK released the firmware to the unofficial website. It seems that this firmware is the latest and all the bugs in the previous release might be fixed. Some of the users might experience laggy UI interaction during running the router using the beta firmware, it is acceptable since the it is in the beta stage.

Image 1: The bug fixes in the latest firmware.


  1. Fast Boot-up
  2. No auto-reboot occurs
  3. Average CPU Load
  4. Able to withstand heavy usage
  5. Less heat generated (no overheat)
  6. Wireless stability


  1. USB Writing speed below average
  2. Laggy interface
  3. Cannot login to the web admin interface if the CPU load at its peak
  4. Less responsive buttons, sometime need to click twice to change/save the settings, more worst, when the logout button was clicked, I couldn’t logout from the router after clicking the “Yes” button.
  5. No real time graph of CPU Load and Memory Usage
  6. Lack of system up-time information

We have reviewed the beta firmware’s both pros and cons. Shall we move to the new chapter of the TP-LINK C1200v1 flashed with the new and unofficial firmware?

Router Archer C1200(EU)_V1_170706 Archer C1200_V1_20180101 Archer C1200_V1_20180124
Type of boot up
Before setup 3.52 minutes 1.17 minutes 2.13 minutes
After setup 5.23 minutes 3.29 minutes 5.12 minutes

Table 1: Comparison chart of the boot-up time between the 3 firmware’s that focuses on before and after setup.

Image 2: The firmware information page.

It seems that the stock tp-link router didn’t lock the firmware upgrade page as done by TIME’s tp-link firmware and perhaps soon, UniFi will implement it.

Image 3: The main interface under “Advance” tab.

The “Advance” tab shows most of the advanced features of the router. Here, I focus on the CPU load which plays a “major” role in the router. The CPU load reading was better / way better than in the previous firmware where the CPU load always shoots high up to 100%. When the CPU load is high, the router seems to hang and some of the users have complained that the torrenting process was interrupted may due to the memory leak from the router.

I’ve personally tested the router flashed with the latest firmware downloading around 20 torrents file, each file exceeds 5GB with a quite number of seeders out there. While downloading the torrents, I noticed that the CPU Load was quite okay in the range of 50% to 65%. Streaming 4K videos while downloading torrents were okay, however, not a good experience, but, still, it is okay.

I am running a D-LINK DNS320 NAS for my parents home. I did a vigorous test on the router where, torrenting, streaming 4K videos, streaming to the NAS, and copying the files to and from the NAS at the same time. I am quite surprised that the router able to handle the test well without a single auto-reboot or hang during the test conducted (CPU Load reading was in between 72% to 89%).

New Features!!!! Added Operation Mode for the router in the latest firmware.

Image 4: Operation mode: Router / Access Point

Here comes the most awaited features by the users out there. Now, in this firmware, you can opt to choose either to make your ISP router to work as the main router or as an access point without even need to do in “old school” way which quite troublesome for the respected ladies and gentlemen who has less knowledge on the networking field. If you’re planning to purchase your own router to replace the current stock router, you can use the ISP router to act as an access point which is a major plus point.

Image 5: WEP and Temporal Key Integrity Protocol (TKIP) features removed.

Wireless Experiences

Previously, I’ve stated that, the wireless experiences of using this router was excellent. However, the wireless performance after flashed to the latest firmware drops. The reason why I said drops, that doesn’t mean that, this firmware worsen the things up, it is just, the wireless experience quite okay. (65/100). From the image 5, I’ve put my router’s transmit power to “high” because if when I opt for “middle”, the router tends to get hotter than usual, hence, I opt for “high” option.

Image 6: Tested on 5 GHz wireless frequency
Image 7: Tested on 2.4 GHz wireless frequency

When the test is conducted, the distance between my laptop and my router is around 12 feet.

USB Reading & Writing

Same as in the previous walk-through for the beta firmware.


The router seems to handle multiple events occurring at the same time without auto-reboot or hang.

Comparison between the beta firmware and the latest firmware in a nut-shell.

Archer C1200_V1_20180101 (Beta) Archer C1200_V1_20180124 (New)

1.       Fast Boot-up

2.       No auto-reboot occurs

3.       Average CPU Load

4.       Able to withstand heavy usage

5.       Less heat generated (no overheat)

6.       Wireless stability


1.       Average boot-up time.

2.       No auto-reboot occurs.

3.       Awesome CPU Load (Lesser compared with old and beta firmware).

4.       Less heat generated.

5.       Operation Mode (superb features).

6.       Responsive UI.

7.       No memory leak during torrenting which freezes the router (a reboot needed).

8.       Able to handle multiple events at a time (heavy tasks).

9.       Awesome read  and writing files to the NAS storage.


1.       USB Writing speed below average

2.       Laggy interface

3.       Cannot login to the web admin interface if the CPU load at its peak

4.       Less responsive buttons, sometime need to click twice to change/save the settings, more worst, when the logout button was clicked, I couldn’t logout from the router after clicking the “Yes” button.

5.       No real time graph of CPU Load and Memory Usage

6.       Lack of system up-time information


1.       USB Writing and Reading speed average.

2.       No real time graph for the both cpu load and memory usage.

3.       System up-time features were not present.

4.       The router taking time to gather the information from the server side when downloading using IDM tool yet sometimes fail, the same test was conducted using my very own Asus AC58U and the router performs well even-though it is using Qualcomm chipset compared with C1200 which were using a Broadcom chipset.

Before upgrade to the latest firmware, do remember this important tips!


Image 8: Important precaution before upgrade to the latest firmware.

For the users who accidentally (rushed) to upgrade the firmware from TIME fiber provider, you can use this link to upgrade your router’s firmware to the latest.

Some users raised a question to me how to set up your own custom LAN ports of the router since the AUS (EU) firmware automatically reserved the LAN 1 port for the IPTV. It is easy, when setting up and upgrading your router, it is advisable to plug in the ethernet cable to the LAN 2 / 3 of your router. Next, you will be greeted with a page that says, “Select your connection type”, PPoE and under the PPoE, select Custom and make sure the VLAN ID was set to “400” for VoIP,  “500” for internet and “600” for IPTV, then tick on the 802.1Q Tag, and finally, choose which of the LAN port you wish to customize according to your wish. Click next to set-up your wireless option.

The image below for those who missed out the step by choosing the pre-define value in the drop down menu, “Malaysia – Unifi”. For those who missed it, you can go to Advance tab, under the Advance tab, select Network then IPTV/VLAN option.

Image 9: Customize your LAN Ports

Final verdict:

I am using the router flashed with the latest firmware for about 3 days. My experience with the router quite happy with the performance.

My rating:

80%. & my rating for TP-LINK company and their engineers, 98%.

Happy weekend everyone.

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Thank you.


24 thoughts on “Archer C1200v1 – NEW FIRMWARE IS OUT!

  1. Can I ask how did you achieve 83.01Mbps download speed over 2.4Ghz wifi on a Unifi 100Mbps line?

    Cuz my speedtest on my mobile phone with 2.4Ghz wifi only can reach avg 50Mbps on a Unifi 100Mbps, but when I do speedtest on LAN cable over Gigabit Ethernet, I can get avg 92Mbps.


    • Good evening. My pardon for replying your message late. Been busy for quite some time. Before I proceed to answer your question, what router you’re using currently? Stock router (c1200 / dir850l)?

      Answering your questions:

      Please spend some time to download this simple, but powerful app to scan your network area.


      Next, install, and immediately start to scan your network. Do observe which channel for each band most likely to be congested in your house. Pick the least congested channel and change the channel at the wireless set up page. Next, the test is conducted using my iphone 7+. Usually, channel 1, 6 and 11 are the most congested channel. But in my area, channel 1, 6 and 10 congested the most. Hence i opt for channel 11 for 2.4ghz and i set auto for 5ghz. I disabled ipv6 and set channel width for each respective band, 20MHz (2.4Ghz) & 40MHz(5GHz).

      Next if your stock router is c1200, i would advise you to put the router at upstairs (if your house is double-story) because, most users don’t realize that, the signal from the antenna will always flow downwards and not upwards. That is why, those who has skills in networking tend to adjust the antenna vertical = horizontally so that the signal flows to the all directions.

      For ethernet, i would strongly recommend you to check the ethernet adapter in pc. you can follow this tutorial here.

      Last but not least, your public ip add also can be the cause of your internet speed. Basically, whenever i get an ip such as / /, i will immediately reboot my router to get my desired ip such as / / / and As mentioned in this phrase, sometime we used to blame wireless or the router because of the slow internet speed when browsing or downloading or streaming without knowing that the culprit is the public ip itself. try to apply / see which ip suits your need in terms of stability, browsing, downloading, streaming or even using via wifi.

      Sometime, when you are using LAN, you should be able to fully utilize the subscribed bandwidth unless, your area is congested by the 100Mbps users. So tm will slightly reduce the bandwidth to fulfill the 80% of your subscribed bandwidth. So yeah, try to follow the instruction. and see does it improves. Btw, do not forget to reboot your router once the changes has been made just in case if your router needs to be rebooted to apply the new settings.


      • Thanks for the comprehensive steps on how to troubleshoot this.
        Yes, I have actually done all the steps for 2.4Ghz WiFi configurations as stated by you before and I still can’t achieve that speed. BTW, I am using TP-LINK Archer C1200 provided by TM and I am on 100Mbps UniFi internet speed

        I benchmarked both on my Asus Zenfone Max Plus M1 and also on ly DELL Latitute E6540 laptop.


  2. Hi.Newbie here. I’m using stock firmware from Unifi. I can’t connect VPN through this router. If I upgrade to EU firmware is it able to use VPN?


    • Yes. But if you upgrade to EU firmware, be prepare to lose up several 5ghz channels. Besides that, if you upgrade to EU firmware, you wont be able to revert back to tm’s firmware.


    • I just upgraded to 100Unifi, and was given C1200 with firmware v1.0.0 build 20170905 rel.41738(EU).
      Is this stock tm firmware?

      I checked the link, and they have two:

      Archer C1200(EU) V1 TM Unifi Wireless Router (Latest 16-5-2018)
      Modifications :
      1. Support DualLan
      2. Support Tr069
      Notes :
      1. For Archer C1200(EU) – TIME Wireless Router

      Archer C1200(EU) V1 TM Unifi Wireless Router (Latest 15-2-2018)
      -Firmware upgrade resolving Google MDNS issue for TM Unifi users.
      -For Archer C1200(EU) – TM Unifi Wireless Router

      Any comment?


      • Good morning Zulazhan. It is a preloaded firmware on all the archer c1200 given to the users. You can opt for three choices.
        1. Flash to the recent firmware of TM which gives you fixed “unifi” ssid. The firmware also seems to have backdoor enabled.
        2. Flash to the recent firmware of TIME, which causes you to lose your firmware upgrade page and if you wish to upgrade the firmware, you always can use ”…1.html#Firmware ” url to get into your router and upgrade the firmware.
        3. Use “stock” EU firmwares from Australia. By doing so, you cannot revert back to Unifi or TIME firmware. You also will lose several wireless 5GHz channels as well. Currently, the most recent firmware released by tplink is the beta version, by which, I am testing it currently.

        If you’re a unifi user, then you have two options, either to flash to TM version or the beta version. But, both firmwares, so far, perform badly actually. Random reboot still occurs. If you don’t mind to opt for third party router, then, please do so.

        Thank you.


  3. TM technical came by today and he flashed the firmware that he said the latest he got, and after he left, I am unable to login to c1200 admin UI. No respond at login page.
    Using the tether app, I can see the firmware is not 1.0.0 Build 20180104 rel, 7326 compared to build 20170905 rel.41738 stock firmware.
    So, how to login to UI when I cannot go beyond the login page?
    Any idea bro?


    • Good morning bro. Pardon me for taking time to reply to your message. I was overloaded with ton’s of work.

      Answering your questions, the router’s login name and password should be available under your router. Have you tried the option bro?

      Thank you.


      • Sorry.. the updated firmware is now 1.0.0 Build 20180104 rel, 7326.

        I tried that one under the router, failed. I also tried the password that I set before updating also failed (techcian used the same pwd I gave him to login to update).
        I will call that technician again today..


    • Funny thing is now several wireless devices no longer connected to router with 1.0.0 Build 20180104 rel, 7326 firmware updated done by TM technician).
      I reset the router today reconfigure it and now all wireless devices including mobile phone and laptop) cannot connect to the router… adoiii
      Maybe there is a hardware wifi problem now.


      • Good morning bro.
        When you hard reset the router, all the configuration return to default. By default, you’re able to login to your router by, or It should be fine. Kindly try it and let me know.

        Thank you.


  4. Hi Arun, I’m facing internet problems with my C1200. The internet will go down at random times where the signal light will turn to amber. Then it will reconnect. It happens randomly multiple times in a day. Any idea? Is this common? My firmware is 1.0.0 Build 20180403 rel.22124 (EU)


    • Good evening Anil,
      Thank you for reaching me out.

      Answering your questions, the C1200v1 is a problematic router supplied by tm under the brand name of Unifi. The real problem of the router is the firmware. If, you have the budget, kindly, do opt for better third party router. Not only you’re facing such problem, but other C1200 users as well facing the same problem. If you’re not convinced enough, then, you can request from TM to change a new router (in this case, they will supply you a new C1200v2 or v3). The problem you’re facing with your c1200v1 is common. There is a thread on forum as well, discussing about the router.

      To summarize, your doubts, the firmware of c1200 is buggy, problematic and not recommended for heavy users.

      Thank you.


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