M5 deco unit sending an abnormal amount of DNS requests to nist DNS servers

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M5 deco unit sending an abnormal amount of DNS requests to nist DNS servers

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.
M5 deco unit sending an abnormal amount of DNS requests to nist DNS servers
M5 deco unit sending an abnormal amount of DNS requests to nist DNS servers
2024-02-20 08:20:51 - last edited 2024-02-21 07:08:40
Tags: #dns
Model: Deco M5  
Hardware Version: V3
Firmware Version: 1.7.3 Build 20230906 Rel. 59213

One of my Deco M5 is sending ~400 DNS requests to time-a at nist gov and time-b at nist gov every 10 minutes. Is that normal? This started two nights ago. I am sure the originating machine is this deco unit and not one of its clients. I have done a factory reset of this misbehaving unit, but after reconnecting it to my mesh it resumes this weird behavior.

 

I have seen similar problems mentioned in this forum but... 2400 requests per hour :-/

 

Can I just blacklist these domains in my pi-hole without affecting my deco performance?

 

Thanks in advance.

 

460d79383e1d4671b758fdbccd3a114b

TP-Link M5v3
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Re:M5 deco unit sending an abnormal amount of DNS requests to nist DNS servers
2024-02-20 13:52:39

For the moment I have applied rate limiting on the pi-hole, which is dealing with the requests flow quite well. What I am not sure in the medium-long term is if Deco will be happy about this. For the moment I do not have any problem in my local network.

 

 

Any opinions?

TP-Link M5v3
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Re:M5 deco unit sending an abnormal amount of DNS requests to nist DNS servers
2024-02-21 06:29:47 - last edited 2024-02-21 06:47:38

  @RobertoLo 

Hi, a new firmware version 1.7.5 has been released for Deco M5 and you could try to install the latest firmware first.

 

The NTP Pool guidelines ("Implementation specifics" section of http://www.pool.ntp.org/en/vendors.html) suggest once or twice a day to a 4-5 times an hour depending on the application. The rest of the DNS requests might be used for the network online detection. When the detection succeed, the LED on the Deco would keep green otherwise it might turn red.

Thank you very much and best regards.

 

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Re:M5 deco unit sending an abnormal amount of DNS requests to nist DNS servers
2024-02-21 06:55:40 - last edited 2024-02-21 07:12:43

  @David-TP 

 

Thank you for your suggestion, David. Unfortunately 1.7.5 doesn't seem available in my country/release channel yet (at least from the deco app point of view). Is there any setting which I should tweak to get the new firmware? smiley

 

Kind regards,

Roberto

 

 

The same in the web UI

 

.

TP-Link M5v3
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Re:M5 deco unit sending an abnormal amount of DNS requests to nist DNS servers
2024-02-21 07:11:32

  @RobertoLo 

Hi, Deco firmware upgrade is applied in sequence to the correct devices during the release process. So not all users get the new firmware notification in the first place. You could wait for a while and check for firmware upgrades regularly.

Or You could try to manually update the firmware via web UI.

Unable to Update Firmware on the Deco APP

 

Best regards.

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Re:M5 deco unit sending an abnormal amount of DNS requests to nist DNS servers
2024-02-21 07:19:57 - last edited 2024-02-21 14:09:24

  @David-TP 

 

Hi again, David! So quick response, thank you :-)

:

Yes, that's what I thought. It is normal that not everyone gets the updates at the same time :-) Where can I get those .bin files to download manually?

 

edit: ok, I found it

TP-Link M5v3
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