DNS weirdness
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- Re: DNS weirdness
Re: DNS weirdness
10-07-2009 11:05 AM
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Re: DNS weirdness
10-07-2009 1:17 PM
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Quote from: spacecowboy Is it safe for a non-techie like me to play with MTU/RWIN settings? If so, would you suggest any particular settings to try?
I'd start with changing the MTU on your router/PC to 1430.
Bob Pullen
Plusnet Product Team
If I've been helpful then please give thanks ⤵
Re: DNS weirdness
10-07-2009 2:37 PM
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Quote from: spacecowboy P.S. Here are some of the other sites i can't access -
www.meldexinternational.com
www.picturecraftgallery.com
www.westcliffegallery.com
I can reach all these and the Bristol site without a problem.
A couple of other things you can try.....
Flush your DNS cache:
From the Start menu select Run, type cmd and press Enter. In the DOS window type ipconfig /flushdns and press Enter.
Clear your Temporary Internet Files and History:
Assuming IE - Select Tools/Options and first Delete Temporary Internet Files and then Clear History.
Re: DNS weirdness
10-07-2009 2:47 PM
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Re: DNS weirdness
10-07-2009 3:46 PM
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Quote from: Bob @dannykos, are you running your traceroutes from a Windows box or are you using a different OS? The reason I ask is because I wouldn't expect ICMP traces to be affected if this is actually down to the dodgy Ellacoya sig.
Bob - sorry for not getting back to you - been at Legoland with the kids
Yeah - i'm on a mac running 10.411 (tiger)
current traces:
traceroute to 212.159.6.9 (212.159.6.9), 64 hops max, 40 byte packets
1 192.168.0.1 (192.168.0.1) 2.728 ms 13.176 ms 21.863 ms
2 * lo0.plusnet.thn-ag2.plus.net (195.166.128.93) 35.802 ms 38.354 ms
3 vl604.thn-gw1.plus.net (84.92.4.169) 40.892 ms 634.427 ms 28.762 ms
4 ae0-102.ptn-gw01.plus.net (212.159.1.53) 28.809 ms 27.349 ms 27.636 ms
5 * * *
6 * * *
7 * * *
8 * * *
9 * * *
10 * * *
traceroute to 212.159.6.10 (212.159.6.10), 64 hops max, 40 byte packets
1 192.168.0.1 (192.168.0.1) 3.641 ms 9.596 ms 2.505 ms
2 lo0.plusnet.thn-ag2.plus.net (195.166.128.93) 40.198 ms 30.964 ms 26.102 ms
3 vl604.thn-gw1.plus.net (84.92.4.169) 26.293 ms 25.753 ms 27.705 ms
4 ae0-102.ptn-gw01.plus.net (212.159.1.53) 147.096 ms 173.725 ms 198.544 ms
5 * * *
6 * * *
7 ae0-102.ptn-gw01.plus.net (212.159.1.53) 25.452 ms !X * *
8 * * *
9 * * *
10 * * *
hmmm..... over to you Bob!
Re: DNS weirdness
12-07-2009 6:43 PM
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Quote C:\Users\Liam>nslookup go-ape.com 212.159.6.9
Server: ptn-cdns01.plus.net
Address: 212.159.6.9:53
DNS request timed out.
timeout was 2 seconds.
DNS request timed out.
timeout was 2 seconds.
*** Request to ptn-cdns01.plus.net timed-out
C:\Users\Liam>nslookup go-ape.com 212.159.6.10
Server: ptn-cdns02.plus.net
Address: 212.159.6.10:53
DNS request timed out.
timeout was 2 seconds.
*** Request to ptn-cdns02.plus.net timed-out
C:\Users\Liam>nslookup go-ape.com 212.159.13.49
Server: pth-cdns01.plus.net
Address: 212.159.13.49:53
*** pth-cdns01.plus.net can't find go-ape.com: Server failed
C:\Users\Liam>nslookup go-ape.com 212.159.13.50
Server: pth-cdns02.plus.net
Address: 212.159.13.50:53
DNS request timed out.
timeout was 2 seconds.
*** pth-cdns02.plus.net can't find go-ape.com: Server failed
EDIT: Appears fine querying OpenDNS :-
C:\Users\Liam>nslookup go-ape.com 208.67.222.222
Server: resolver1.opendns.com
Address: 208.67.222.222:53
Non-authoritative answer:
Name: go-ape.com
Address: 67.215.66.132
C:\Users\Liam>nslookup go-ape.com 208.67.220.220
Server: resolver2.opendns.com
Address: 208.67.220.220:53
Non-authoritative answer:
Name: go-ape.com
Address: 67.215.66.132
Re: DNS weirdness
12-07-2009 11:50 PM
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Re: DNS weirdness
14-07-2009 1:51 PM
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Quote from: dannykos
Quote from: Bob @dannykos, are you running your traceroutes from a Windows box or are you using a different OS? The reason I ask is because I wouldn't expect ICMP traces to be affected if this is actually down to the dodgy Ellacoya sig.
Bob - sorry for not getting back to you - been at Legoland with the kids
Yeah - i'm on a mac running 10.411 (tiger)
That would explain it then, AFAIK traceroute on a MAC uses UDP as opposed to ICMP.
Quote current traces:
traceroute to 212.159.6.9 (212.159.6.9), 64 hops max, 40 byte packets
1 192.168.0.1 (192.168.0.1) 2.728 ms 13.176 ms 21.863 ms
2 * lo0.plusnet.thn-ag2.plus.net (195.166.128.93) 35.802 ms 38.354 ms
3 vl604.thn-gw1.plus.net (84.92.4.169) 40.892 ms 634.427 ms 28.762 ms
4 ae0-102.ptn-gw01.plus.net (212.159.1.53) 28.809 ms 27.349 ms 27.636 ms
5 * * *
6 * * *
7 * * *
8 * * *
9 * * *
10 * * *
Am I correct in assuming that this is intermittent and your traceroutes don't always time out?
@Liam @banburyz are you guys still having problems?
Bob Pullen
Plusnet Product Team
If I've been helpful then please give thanks ⤵
Re: DNS weirdness
14-07-2009 1:53 PM
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Luckily I haven't suffered any problems - just been reading about others problems
Re: DNS weirdness
14-07-2009 5:54 PM
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Quote from: Bob Am I correct in assuming that this is intermittent and your traceroutes don't always time out?
@Bob – not entirely sure what's happening to be honest… my connection feels like i'm not getting full line speed all the time. When I run a speedtest - it's all over the place, even during the test, fluctuating alot. Actual results seem ok (not great) - but there's just something not quite right. Also - trying to play World Golf Tour (wgt.com) is a total nightmare
traceroute to 212.159.6.9 (212.159.6.9), 64 hops max, 40 byte packets
1 192.168.0.1 (192.168.0.1) 4.632 ms 1.458 ms 2.708 ms
2 lo0.plusnet.thn-ag2.plus.net (195.166.128.93) 45.565 ms 29.417 ms 38.290 ms
3 vl604.thn-gw1.plus.net (84.92.4.169) 25.865 ms 29.905 ms 38.960 ms
4 ae0-102.ptn-gw01.plus.net (212.159.1.53) 25.532 ms 25.562 ms 25.011 ms
5 * * *
6 ae0-102.ptn-gw01.plus.net (212.159.1.53) 28.694 ms !X * *
7 * * ae0-102.ptn-gw01.plus.net (212.159.1.53) 27.073 ms !X
8 * * *
9 * ae0-102.ptn-gw01.plus.net (212.159.1.53) 27.492 ms !X *
10 * * *
11 * * *
12 * * *
traceroute to 212.159.6.10 (212.159.6.10), 64 hops max, 40 byte packets
1 192.168.0.1 (192.168.0.1) 2.270 ms 3.022 ms 4.584 ms
2 lo0.plusnet.thn-ag2.plus.net (195.166.128.93) 25.575 ms 33.890 ms 28.437 ms
3 vl604.thn-gw1.plus.net (84.92.4.169) 27.136 ms 24.823 ms 25.450 ms
4 ae0-102.ptn-gw01.plus.net (212.159.1.53) 28.341 ms 27.432 ms 25.535 ms
5 * * *
6 * * *
7 ae0-102.ptn-gw01.plus.net (212.159.1.53) 30.836 ms !X * *
8 * * *
9 * * *
10 * * *
11 * * *
12 * * *
Re: DNS weirdness
14-07-2009 8:39 PM
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When I couldn't connect to any sites I did a tracert to 212.159.6.9 (the primary DNS that my router said I was using)
and this is what I got:
Tracing route to 212.159.6.9 over a maximum of 30 hops
1 1 ms 1 ms 1 ms 192.168.1.1
2 49 ms 47 ms 51 ms 195.166.128.101
3 56 ms 47 ms 61 ms 84.92.4.241
4 64 ms 83 ms 75 ms 212.159.1.53
5 47 ms 68 ms 46 ms 212.159.2.124
6 47 ms 55 ms 55 ms 212.159.6.9
Trace complete.
You'll see that no names are reported, just IP addresses.
Does this mean that I can only visit sites as long as I know the IP address?!!
I have had to reset my router to get a working connection (i.e. one that means I can actually
connect to web sites etc), and a tracert on the same DNS IP address now gives:
Tracing route to ptn-cdns01.plus.net [212.159.6.9]
over a maximum of 30 hops:
1 2 ms 1 ms 1 ms voyager.home [192.168.1.1]
2 46 ms 57 ms * lo0-plusnet.pcl-ag01.plus.net [195.166.128.27]
3 44 ms 54 ms 36 ms gi1-2-803.pcl-gw1.plus.net [84.92.5.57]
4 40 ms 54 ms 60 ms vl63.pcl-lb01.plus.net [212.159.2.252]
5 37 ms 41 ms 36 ms ptn-cdns01.plus.net [212.159.6.9]
Trace complete.
This is very much still a live problem for me, which is really driving me and my kids crazy.
Can you please provide a reliable fix for this, or at least explain a bit more about the problem
and why it keeps happening? I really don't see why I should have to reset my router to
get this to work (and then reconfigure my network name and security settings and connection
details etc).
Please, this is getting beyond a joke.
Re: DNS weirdness
14-07-2009 8:44 PM
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We're not seeing this problem for anyone else at all currently and there doesnt appear to have been a problem since Sunday afternoon.
Is your router/network card having its dns servers assigned manually or automatically?
Re: DNS weirdness
14-07-2009 8:49 PM
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Thank you for the swift response. The DNS settings are picked up by the modem/router automatically
when it connects. I have explained previously that I use my laptop via three different connectivity
providers (PlusNet at home, 3 mobile on the go and a network at my workplace during the day), so
I have a feeling that it may cause problems if I hard-code DNS settings. What do you think?
Thanks again for your help.
Adrian
Re: DNS weirdness
14-07-2009 10:59 PM
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Re: DNS weirdness
14-07-2009 11:18 PM
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