DNS Errors

[Infidel]

Hi

I've moved to a new fibre provider and I'm getting frequent drops in fibre connectivity where I get a DNS error along the lines of "NAME_NOT_RESOLVED" or "server IP address could not be found".
It will happen every 10 or 15 minutes, last around 10 to 30 seconds and then all is good again.
Any ideas? Router issue or fibre issue?

I'm using a D-Link DSL-G225 router (worked on my Telkom line no problem). I also have access to a Huawei CPE B315s.

Cheers

 

[Naaimasjien]

When you detect a drop in connectivity, open up Command Prompt (Windows Key + R, type 'cmd', hit enter)

Run a traceroute to 1.1.1.1 and see where the drop is. Enter the following into Command Prompt and hit enter:

tracert -d 1.1.1.1

If the tracert can't complete the first hop, the fault is between your device and your router.

 

[Infidel]

When you detect a drop in connectivity, open up Command Prompt (Windows Key + R, type 'cmd', hit enter)

Run a traceroute to 1.1.1.1 and see where the drop is. Enter the following into Command Prompt and hit enter:

tracert -d 1.1.1.1

If the tracert can't complete the first hop, the fault is between your device and your router.

Shotto, I'll try that tonight.

 

[Infidel]

When you detect a drop in connectivity, open up Command Prompt (Windows Key + R, type 'cmd', hit enter)

Run a traceroute to 1.1.1.1 and see where the drop is. Enter the following into Command Prompt and hit enter:

tracert -d 1.1.1.1

If the tracert can't complete the first hop, the fault is between your device and your router.

So I gave it a try.

Doesn't seem to be between the device and router:
=========================================
tracert -d 1.1.1.1

Tracing route to 1.1.1.1 over a maximum of 30 hops

1 13 ms 3 ms 3 ms 10.0.0.2
2 11 ms 3 ms 4 ms 10.123.3.1
3 7 ms 4 ms 6 ms 169.255.38.1
4 10 ms 6 ms 5 ms 196.10.141.198
5 4 ms 4 ms 6 ms 1.1.1.1

Trace complete.
==========================================
tracert -d www.google.com

Tracing route to www.google.com [216.58.223.36]
over a maximum of 30 hops:

1 3 ms 2 ms 4 ms 10.0.0.2
2 18 ms 5 ms 4 ms 10.123.3.1
3 7 ms 4 ms 5 ms 169.255.38.1
4 6 ms 6 ms 7 ms 197.157.67.133
5 * * * Request timed out.
6 21 ms 4 ms 5 ms 197.157.77.153
7 13 ms 47 ms 12 ms 197.157.77.152
8 * * * Request timed out.
9 16 ms 11 ms 12 ms 197.157.77.13
10 * * * Request timed out.
11 13 ms 10 ms 11 ms 72.14.239.129
12 13 ms 11 ms 13 ms 216.58.223.36

Trace complete.

======================================

 

[Geoff.D]

Who is your fibre service provider and ISP?

There have been a number of these instances lately ever since this event kicked in.
https://dnsflagday.net/

 

[Infidel]

I'm on 123Net for both.