How to verify Archer MR200(EU) V4 4G discontinuous connection

How to verify Archer MR200(EU) V4 4G discontinuous connection
How to verify Archer MR200(EU) V4 4G discontinuous connection
2019-09-18 08:57:08
Model: Archer MR200
Hardware Version: V4
Firmware Version: 1.9.0 0.9.1 v0001.0 Build 190307 Rel.54196n

Hello,

I realized that the connection is discontinuous because my home automation system signals it going offline (it's conneced via eth port).

It happens at the same time when the ping 8.8.8.8 -t signals packets loss (between 20% and 25%).

 

I'm sure it depends by the  Archer MR200 because if I put the same SIM card in another 4G router (with the same eth cable) all the connected devices work fine

and even the continuos ping doesn't report packets loss.

 

I also tried to connect the home automation system to another eht post, but nothing change

There's no connection problem between  the home automation system and Archer MR200 because I can ping it frm the LAN continuosly without packets loss, even when the 4g connection problem.

The firmware is the last available.

 

However, regardless of the connectivity problems of the home automation system, when I use the same sim card on another 4G router I have no loss of packets or other problems.

 

What kind of log or other information I should looking for to verify the 4G connection stability?

Any Ideas?

thanks

 

 

 

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5 Replies
Re:How to verify Archer MR200(EU) V4 4G discontinuous connection
2019-09-18 09:36:00 - last edited 2019-09-18 09:50:22

UPDATE:

I saw many posts on this forum about similar problem.

I forget to say that looking at "Internet status" on web interface, when I have packets loss, the status chages continuously from disconnected/connecting/connected

 

The very funny thing :) is that  this router has just arrived as replacement of my MR200 V2 router that had another problem (less serious than this because it occurred about once a month, while this problem occurs continuously!).

 

The problem is that on every RMA I've to spend money for sending the router back, therefore this story stars to become very expensive about time and money invested ! :)

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Re:How to verify Archer MR200(EU) V4 4G discontinuous connection
2019-09-18 18:58:43 - last edited 2019-09-18 19:00:13

@ElwoodBlues Thank you for your post!

This is exactly my experience with a MR200 v4 router on the latest firmware update (Archer MR200(EU)_V4_20190730, which was a minor one per TP LINK affirmation).

 

The router keeps losing the 3G/4G connection in a non predictable way and it proved useless to pin point the cause of this behaviour.

 

I kept a solid eye on the hardware LED indicator: it's full strength at 3 bars (100%) and suddendly it goes down to no bars at all (0%). Then, moments later or seconds later it goes back up to 100% again.

 

Unfortunately i have no other 3G/4G router to make some comparative testing in the same place, but inserting the SIM card in a generic smartphone and leaving it in the same place of the router shows uninterrupted connection (tested with OpenSignal app on Android).

 

Fun fact: i also came from a v2 revision of the same model MR200 (which crashed randomly but daily, almost).

 

This connection disruption is pretty casual, and frustrating. I'd like some sort of active support from TP LINK on the issue.

Please, do it.

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Re:How to verify Archer MR200(EU) V4 4G discontinuous connection
2019-09-19 09:11:44 - last edited 2019-09-19 09:40:38

@babaz75 

before your post I tried with the same firmware you used (20190730) with same result :(

 

Using the same SIM card, in the same position, it's quite surprising that using a very cheap portable 4G/LTE router (without 2 big LTE antennas)

I've a signal strenght much better than the one gained with Archer MR200 V4 (that I paid  €120 !!!).

I also used an android  smartphone with Network Cell Info Lite app that gives very accurate informations.

 

I'm talking about about 25-30 dBm better signal that makes the difference between a stable connection and a poor connection.

 

V2 had a much e better signal strenght (same SIM card and same position)! (but it was crashing)

 

I really want this to be a software problem, but I'm afraid it's about the quality of the antenna or other hardware. I hope I'm wrong, but I'd like feedback from TP-LINK's technical support as the problem is widespread and concerns a non-economical product!

 

 

 

 

 

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Re:How to verify Archer MR200(EU) V4 4G discontinuous connection
2019-09-19 17:35:23 - last edited 2019-09-19 17:38:40

@babaz75 I've good news for me and I hope for you too! :)

I had the suspect that the problem was due to the continuous switching between 3g and 4g (and

the other way around) about the connection type. 

Therefore I changed the default value "4G  Preferred" to "4G Only" (advanced/network/internet/network mode) and now

I achieved 2 good results:

1 the connection is stable (no packets loss and the led indicator is stable)

2 for the first time I see "Network Type: 4G LTE" instead of WCDMA, in Advanced/Status

 

I hope this could help you and someone else ;)

 

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Re:How to verify Archer MR200(EU) V4 4G discontinuous connection
2019-09-19 17:49:30

@ElwoodBlues awesome, pal

unfortunately i've no 4G signal in zone, so i'am always on 3G.

I switched to 3G only, but connection keeps fluctuating

 

Let's hope someone from TP LINK could offer some official insight.

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