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2 posts

Wannabe Geek


#270118 24-Apr-2020 12:49
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Hi folks,

 

I am working with Huawei on issues with the Spark Unplan Huawei B618s modem which shows DNS issues. Just wondering if anyone out there can confirm the issues.

 

Simply put all DNS lookups result in two failed ones and then the successful return of the IP address. Sometime, with enough traffic it will stop responding to DNS requests. This is on all devices on the network. Turning the device on/off will make it work again.

 

If you have this modem can you do a simple:
nslookup www.google.com

 

My output:

 

Server:  one.one.one.one
Address:  1.1.1.1

 

DNS request timed out.
    timeout was 2 seconds.
DNS request timed out.
    timeout was 2 seconds.
Non-authoritative answer:
Name:    www.google.com
Addresses:  2404:6800:4006:802::2004
          172.217.25.36

 

The first two time-outs should not be there. It is irrelevant which DNS server you specific, or whether you specify to use the router's DNS server or manually configured on the network adapter.

 

Reason why I raised the case with them is that our corporate OpenDNS/Umbrella client (Mac and Windows clients) does a lot of DNS-over-HTTPS requests which makes the modem blow it's DNS up within minutes.

 

let me know your thoughts and experience. Thanks in advance


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847 posts

Ultimate Geek

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  #2469254 24-Apr-2020 13:01
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I can't replicate this problem with the same router and have not noticed any DNS issues...

 

nslookup www.google.com
Server:  homerouter.cpe
Address:  192.168.1.254

 

Non-authoritative answer:
Name:    www.google.com
Addresses:  2404:6800:4006:80b::2004
          172.217.167.100

 

 

 

You've said it happens to any device on the network but just wondering if you are running windows have you checked the adapter properties > tcp/ip v4 > advanced > DNS tab and make sure there are no stray servers listed there? I know DNSJumper sometimes puts phantom records in addition to the ones you specify


'That VDSL Cat'
12315 posts

Uber Geek

Trusted
Spark
Subscriber

  #2469322 24-Apr-2020 13:36
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If the client users DNS over HTTPS, it wouldn't be routing dns to the router at all.





#include <std_disclaimer>

 

Any comments made are personal opinion and do not reflect directly on the position my current or past employers may have.

 


 
 
 
 




2 posts

Wannabe Geek


  #2470380 24-Apr-2020 15:26
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snnet:

 

I can't replicate this problem with the same router and have not noticed any DNS issues...

 



Darn. I have received a replacement modem from Spark... same issue. What is your model and firmware?
My System information:

 

Device name:  B618s-65
Hardware version: WL1B610FM01
Software version:  11.198.01.05.1011
Web UI version:  21.100.52.00.03

 

snnet:
You've said it happens to any device on the network but just wondering if you are running windows have you checked the adapter properties > tcp/ip v4 > advanced > DNS tab and make sure there are no stray servers listed there?

 

 

No additional DNS servers unfortunately. When I connect my workstation to a Vodafone 4G modem I don't have any issues; it's just when using these Huawei's


'That VDSL Cat'
12315 posts

Uber Geek

Trusted
Spark
Subscriber

  #2470382 24-Apr-2020 15:31
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I'd be keen to understand a little more about what your VPN application is specifically doing...

 

maybe a pcap if possible?





#include <std_disclaimer>

 

Any comments made are personal opinion and do not reflect directly on the position my current or past employers may have.

 


847 posts

Ultimate Geek

Subscriber

  #2470386 24-Apr-2020 15:39
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Ob1kxb:

Darn. I have received a replacement modem from Spark... same issue. What is your model and firmware?
My System information:

 

Device name:  B618s-65
Hardware version: WL1B610FM01
Software version:  11.198.01.05.1011
Web UI version:  21.100.52.00.03

 

 

Exact same versions as you 


'That VDSL Cat'
12315 posts

Uber Geek

Trusted
Spark
Subscriber

  #2470417 24-Apr-2020 16:30
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snnet:

 

Ob1kxb:

Darn. I have received a replacement modem from Spark... same issue. What is your model and firmware?
My System information:

 

Device name:  B618s-65
Hardware version: WL1B610FM01
Software version:  11.198.01.05.1011
Web UI version:  21.100.52.00.03

 

 

Exact same versions as you 

 

 

That's because that is exactly the firmware we are currently pushing out.





#include <std_disclaimer>

 

Any comments made are personal opinion and do not reflect directly on the position my current or past employers may have.

 


847 posts

Ultimate Geek

Subscriber

  #2470426 24-Apr-2020 16:55
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hio77:

 

is exactly the firmware we are currently pushing out.

 

 

I figured - just ruling versions out


 
 
 
 


38 posts

Geek


  #2474131 30-Apr-2020 15:22
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I've had similar problems with DNS / Ping timeouts on my B618 and other B315s that i've tested. 

 

I'm with Skinny and even ended up getting a new sim / B315 which behaves in a similar manner.   

 

Skinny have tired to help, but can only assume that is it network congestion during the COVID-19 lockdown which is causing the issues. 


847 posts

Ultimate Geek

Subscriber

  #2474934 1-May-2020 18:26
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StephenNZ:

 

I've had similar problems with DNS / Ping timeouts on my B618 and other B315s that i've tested. 

 

I'm with Skinny and even ended up getting a new sim / B315 which behaves in a similar manner.   

 

Skinny have tired to help, but can only assume that is it network congestion during the COVID-19 lockdown which is causing the issues. 

 

 

Now and then I do have to reboot the modem and all comes back but I liken it to too much activity / connections


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