DNS issue?
 

Hello I am having issues connecting to certain sites

Sites like twitter are taking a long time to connect to or I am having to spam refresh 50times to get onto but other sites are working fine.

The weird thing is I am using chrome and when I go incognito it connects fine but when I use IE explorer it also never conencts, I understand there have been some DNS issues and I have tried both Google and Virgin DNS and it still happen s

---------- Post added at 22:02 ---------- Previous post was at 22:00 ----------

Nevermind it seems that even Incognito doesn't load now

Re: DNS issue?
 

Re: DNS issue?
 

I saw that and the thing is I have tried Google DNS and still got the issues with some websites taking forever/never loading which is why I am asking here

Re: DNS issue?
 

Funny, I saw BT apologizing in the news yesterday about some sort of outage too

Re: DNS issue?
 

oh god I love the irony, this has just given me an unexpected Sunday morning laugh at 08:25

"Specifying alternative DNS settings as noted above should provide a temporary solution while we work to get this fixed"

so as VM know they don't support this feature on the shub, they expect everyone to go round all their devices (because they love to advertise that VM connections are for the whole family) and make the changes manually?

I use IE and google dns and haven't had any problems at all over the last couple of days and I have tried twitter as well. If you are still experiencing the problem (and have configured google dns) it would be worth opening a command prompt and doing ipconfig /flushdns and then trying twitter again

Re: DNS issue?
 

did you run ipconfig /flushdns ?

Re: DNS issue?
 

....and try Namebench?

Re: DNS issue?
 

When we rang to report this problem at work on Friday we were told to change our DNS to 194.168.4.123 and 194.168.8.124 as the .100 servers were residential.

I suspect the above is some sort of codswollop.

BTW, If it makes any difference, at work we are on a MIA connection.

Re: DNS issue?
 

if they can differentiate on their end between residential accounts and business accounts then it is their responsibility to configure it via dhcp

Re: DNS issue?
 

Didn't even notice there was a problem. Hurrah for using Google and OpenDNS.

Re: DNS issue?
 

exactly :clap: :google:

Re: DNS issue?
 

Hurray for BT...

Lol. No but seriously, VM's DNS servers may have a reliability problem (possibly stemming from the VM network itself inherently having higher packet loss) but they're often the fastest of all UK ISPs.

Re: DNS issue?
 

no update yet ;(

Re: DNS issue?
 

I've never known any other ISP's DNS servers to go down as often as Virgin's do, but when they work, they work well. Still, OpenDNS is at least as fast for me as Virgin's DNS and I don't think they've ever had an outage. They used to annoy me with their search page but now they've got rid of that, I really cannot complain.

Re: DNS issue?
 

I think the difference it makes (in speed) increases the further you get away from London. VM's advantage is having local DNS caches around the country in each part of their network - external providers such as Google or OpenDNS don't. Hence if you're in South-East England, you're looking at maybe 3-5ms to VM's nearest DNS servers or 5-10ms to everyone else's in London. In Scotland you're looking more like 3-5ms to VM's nearest DNS servers or 15-20ms to London.

As for outages, can't say I notice them much, but admittedly during the years I was with VM I usually had Google DNS set anyway mainly because it was just easier to remember when entering network settings by hand!

Re: DNS issue?
 

You say that, but both OpenDNS and Google's DNS seem consistently faster than Virgin's for me - and I'm in the bloody north west!

http://i.imgur.com/4STxRLl.png

Of course I know pinging isn't the same as actually doing a lookup, but various DNS benching tools I've tried tend to give similar results to what I see there. ~10ms here and there probably isn't going to kill me or anything, but the stability can't be sniffed at.

I hear that! Though for some reason, OpenDNS's IP's seem permanently ingrained in my head. I've been using them since long before Google DNS was a thing, though. When I was at Virgin, I always got customers to ping an IP address, usually Virgin's DNS, to rule out DNS issues right away. If I was in doubt, pinging 208.67.222.222 was another good way to check for a DNS fault.

Now that I sort of manage Active Directory at work (Thankfully not Virgin), I've since learned that DNS is nearly always the cause of issues for everything. If in doubt, it's probably a DNS fault.

Re: DNS issue?
 

I do wonder if anyone will ever score the equivalent IPV6 address... 8.8.8.8 was a steal for Google.

Re: DNS issue?
 

SamKnows DNS sampling via Brighton brig15 and my BN3 node recorded DNS failures(or lag/prolonged response times) starting on 24June.
https://www.cableforum.co.uk/images/...2014/07/38.png

Usually these tend to average around 13ms.
Namebench tests indicated VM secondary DNS hit 1036ms average with 98% deviation from 6ms to 5000ms+ maximum at one point.

Re: DNS issue?
 

Jesus, that's some frightening latency.

I believe Level 3 actually own the address, Google just leases it from them.

Facebook's is the best IPv6 address I've seen so far and even that's nothing amazing:

2a03:2880:2110:df07:face:b00c:0:1

As all publicly routable IPv6 addresses need to start with 2 (as far as I understand), I guess the nearest equivalent to 8.8.8.8 would have to be something like 2222::2222 or something else symmetrical like 2345::5432.

Re: DNS issue?
 

Well I'd love to lease it... Just so I can do DNS poisoning attacks against everyone who uses Google DNS >_>

Yeah face:b00c:0:1 isn't particularly impressive, pretty much anyone can arbitrarily allocate anything they want inside their own /32. :dead:beef:0:0

Re: DNS issue?
 

If you got ahold of 8.8.8.8 you could probably rickroll a good third of the internet, if not more.

Re: DNS issue?
 

Getting rickrolled would be the least of their worries.

Re: DNS issue?
 

Virgin DNS fubared again, could it be a DDOS attack? Seems weird two biggest isps have this issue

Re: DNS issue?
 

Especially as it has been going on since Friday. It must be very frustrating for the customers involved. Hopefully it will give VM pause for thought and maybe make them reconsider allowing customer dns entries on the shub (and maybe that is the point of the ddos :))

Re: DNS issue?
 

VM admit DNS issues: http://www.ispreview.co.uk/index.php...-problems.html

Re: DNS issue?
 

Lol, i love that they take a jab at the shub. You can fix the problem by specifying your own dns servers such as google but the shub wont let you do it :)

Re: DNS issue?
 

More DNS problems here in Leeds today!
11.00 @10.5Ms 12.00 @ 360Ms then 13.00 @ 11.5Ms.
Seems to be o'k now running 11.0Ms.

Re: DNS issue?
 

Had issues here last night in Bristol BS34 . Changed my ipad DNS TO 8.8.8.8,no issues

Re: DNS issue?
 

ps,
I was using the DNS 8.8.8.8,but still was experiencing issues??

Re: DNS issue?
 

Then you have a different issue.

Re: DNS issue?
 

There is a network issue they denied for half an hour