Connection issues with Cloudflare

[#1]

Yes you'd expect somebody to be on call especially since this started around midday on saturday

[#2]

I would also love to hear the users on this forums' reasoning as why upload speeds are not affected but download speeds are 😁

[#3]

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@Townman wrote:
Or simply maybe there’s an issue on the peering connection(s). Why do people jump to conspiracy theories?

Tracert reports suggest that the issue is way beyond Plusnet’s network.

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No idea, @Townman  - probably because it is what they always do?

[#4]

Cloudflare DNS issue seems to have been resolved this morning.

[#5]

Oops!

Now Plusnet DNS servers gone offline...

Lucky I am now on Google service. It's a game this.

[#6]

Can you explain that statement please?

Do you has specific diagnostics ... generally speaking, all seems fine, so you might have issues specific to you.

[#7]

...Yes I can explain.

At time of post and now: 100% no response to ping (and tracert) from Plusnet DNS servers.

So, either, not there or do not now respond to ping. If latter, how can we ever check whether they are down or not?
Currently using Google DNS servers (from PC Network settings).

[#8]

Plusnet DNS hasn't responded to ping requests since 13th July 2023 -

https://community.plus.net/t5/Tech-Help-Software-Hardware-etc/Has-Plusnet-server-212-159-6-9-just-go... 

.

[#9]

...Time to put Google DNS servers into Plusnet Hub 2 as default DNS server.

[#10]

Was just going to post a similar response, @outcast 😀

[#11]

@jab1  - so we don't both answer the rest of the question, do you want to answer this ? -

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@pvmb wrote:

... Plusnet DNS servers ... ... how can we ever check whether they are down or not?

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[#12]

I'll leave it to you, @outcast  - on another forum for now.

[#13]

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@pvmb wrote:

...Time to put Google DNS servers into Plusnet Hub 2 as default DNS server.

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So... Manually changing the DNS servers and saving - then restarting the Hub 2 -  doesn't change the default router DNS servers! Why not? (Because Plusnet configuration overrides settings?)

Does anyone know how this can be done? Or will I only be able to change DNS servers in the PC Network Settings?

[#14]

@jab1  I thought you'd say that !  😆

Anyway -

@pvmb wrote:

... Plusnet DNS servers ... ... how can we ever check whether they are down or not?

So if you open a command line terminal,  you can use the 'nslookup' command to check whether a DNS server is responding.

The format is -

nslookup  <a domain to lookup>  <DNS server>

So to check Google DNS you might do this, and get a corresponding list back in response -

$ nslookup bbc.co.uk 8.8.8.8
Server:		8.8.8.8
Address:	8.8.8.8#53

Non-authoritative answer:
Name:	bbc.co.uk
Address: 151.101.64.81
Name:	bbc.co.uk
Address: 151.101.128.81
Name:	bbc.co.uk
Address: 151.101.192.81
Name:	bbc.co.uk
Address: 151.101.0.81
Name:	bbc.co.uk
Address: 2a04:4e42:600::81
Name:	bbc.co.uk
Address: 2a04:4e42::81
Name:	bbc.co.uk
Address: 2a04:4e42:400::81
Name:	bbc.co.uk
Address: 2a04:4e42:200::81

Therefore to test Plusnet DNS, choose a DNS server address (in this case 212.159.13.51) .

IF the Plusnet server responds, then you will get a list of IP addresses as shown in the example above,

or if the Plusnet server does NOT reply (due to a fault, or probed from a NON-Plusnet ISP as I am) then you'd see this -

$ nslookup bbc.co.uk 212.159.13.51
;; connection timed out; no servers could be reached

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[#15]

...OK. Thanks.

So many network commands... At my age I cannot remember them all!