Cool Ideas Fibre ISP – Feedback Thread 6

Wife just got back and confirmed Canva is working, as is everything else she uses. Showmax is slow enough for me to have pulled the plug, but apparently that's normal.

I'll keep monitoring throughout the day, if it's still fine after lunch I'll let you know and the ticket can likely be closed :)
 
Progenix Oj101 said:
@CoolEscalator I'm not gonna pretend to understand internet routing for a millisecond, but this is what I got - very little of which I understand:

Changing DNS is changing behaviour because each DNS service may have different retry logic, caching or anycast pathing - DNS is not the cause, even though it appears to be.

YouTube has extremely aggressive buffering and caching, which is why it hasn't been affected.

Likely causes are ISP edge router (I DO know what an edge router is, this would affect tons of people), peering link, BRAS/BNG layer, or Vuma handoff.

The "sometimes works, sometimes doesn't" was likely extreme packet loss, and something changed upstream. Possibly load reduced or routing changed.

Does any of that make sense?
Click to expand...
So changing the DNS can make it seem like there is an improvement, as it can influence the path traffic takes. The Caches for Youtube and Netflix could have masked the underlying instability you were seeing to other services.. But yes, this sounds more like packet loss more than anything else.
Progenix Oj101 said:
Wife just got back and confirmed Canva is working, as is everything else she uses. Showmax is slow enough for me to have pulled the plug, but apparently that's normal.

I'll keep monitoring throughout the day, if it's still fine after lunch I'll let you know and the ticket can likely be closed :)
Click to expand...
Thank you for confirming , I'm glad it was only a temporary issue, feel free to do the direct ONT test should the issue creep up again, as hopefully that might isolate the issue a bit further.
 
CoolEscalator said:
So changing the DNS can make it seem like there is an improvement, as it can influence the path traffic takes. The Caches for Youtube and Netflix could have masked the underlying instability you were seeing to other services.. But yes, this sounds more like packet loss more than anything else.
Click to expand...
Well I'm glad it's improving, regardless of what it was.

CoolEscalator said:
Thank you for confirming , I'm glad it was only a temporary issue, feel free to do the direct ONT test should the issue creep up again, as hopefully that might isolate the issue a bit further.
Click to expand...
You have no idea how much I hope I don't need to do this :ROFL: Which smart guy thought going enterprise level and essentially hard-wiring everything in place was the best idea? This idiot right here.
 
Hi @CoolEscalator I am not sure if its just me experiencing this, but thought I would post incase.
I am getting intermittent DNS lookup failures with CISP's DNS servers this morning, but 1.1.1.1 works 100%.
It seems to happen mostly with less popular domains that are unlikely to be in the DNS cache, popular domains such as github.com or google.com resolve instantly without an issue.

Was wondering if you are perhaps seeing the same :)

nslookup examples:

1774950408313.png
 
Jason-ZA said:
Hi @CoolEscalator I am not sure if its just me experiencing this, but thought I would post incase.
I am getting intermittent DNS lookup failures with CISP's DNS servers this morning, but 1.1.1.1 works 100%.
It seems to happen mostly with less popular domains that are unlikely to be in the DNS cache, popular domains such as github.com or google.com resolve instantly without an issue.

Was wondering if you are perhaps seeing the same :)

nslookup examples:

View attachment 1897537
Click to expand...
Also seeing DNS issues in Cape Town. Switched to 9.9.9.9 and all is good.
 
I always used CISP DNS, thinking the on-network CDN cache would be best, but switching to 9.9.9.9 DNS has made a huge impact on downloads from Apple. When using CISP DNS, I was lucky to get 30Mbps from the on-network edge server in Joburg. Switching to 9.9.9.9, I connect to a CDN in Cape Town that maxes my 1 Gpbs line. It is the difference between taking minutes and hours to download the latest XCode updates and associated components.
 
@CoolEscalator My problems are back, lots of time outs and errors when sending mail (Socket Error # 11001 Host not found). Over the last hour, I've needed to try sending invoices 5-10x before they go through. Ticketing system (mine) is also timing out and saying there are no tickets, etc. It's nearly as bad as it was last night.

I've just set some monitoring for everything from the gateway to multiple DNS servers and will see if it picks anything up over the next hour or two.
 
speedtest.PNG

It's hard to get the screenshot at the exact right time, but download latency can spike as high as the 3xxx range during the test.

The highest latency I see on upload is 7, generally 2-4.
 
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