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Connection problem

 
 
MB
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      05-17-2009, 08:04 PM
I Wonder if anyone here has any ideas why I have been unable to connect
to the SABRE website for the last few weeks.

http://www.sabre-roads.org.uk/

I have tried three different computers (two different OS and two
different firewalls), three routers and all behave the same.

PING fails and TRACEROUTE gets to the last hop before the site.

I have found no one else having any problems including plenty on the same ISP.

But a dial-up connection through my same ISP works OK.


ADSL

05/13/09 16:30:33 ping 74.52.149.66
Ping 74.52.149.66 ...
1 failed
2 failed
3 failed
4 failed
5 failed
6 failed
7 failed
8 failed
9 failed
10 failed

05/13/09 16:32:32 Fast traceroute 74.52.149.66
Trace 74.52.149.66 ...
1 xxx.xxx.xxx.xxx 1ms 0ms 0ms TTL: 0 (No rDNS)
2 xxx.xxx.xxx.xxx 74ms 74ms 79ms TTL: 0 (No rDNS)
3 xxx.xxx.xxx.xxx 74ms 74ms 76ms TTL: 0
4 213.253.132.74 74ms 74ms 77ms TTL: 0
(Fa0-16.sw1.f1i14.iph.lon.as5587.net fraudulent rDNS)
5 195.13.89.17 76ms 75ms 83ms TTL: 0
(821.gi0-1.rtr2.iph.lon.as5587.net ok)
6 213.253.141.222 75ms 76ms 130ms TTL: 0
(900.gi0-0-0.rtr2.tc9.lon.as5587.net ok)
7 213.248.100.189 147ms 76ms 86ms TTL: 0
(ldn-tch-i1-link.telia.net fraudulent rDNS)
8 80.91.250.209 75ms 141ms 86ms TTL: 0 (ldn-b5-link.telia.net
fraudulent rDNS)
9 213.248.100.50 75ms 78ms 87ms TTL: 0
(verio-129583-ldn-b5.telia.net fraudulent rDNS)
10 129.250.5.237 75ms 79ms 91ms TTL: 0
(ae-1.r23.londen03.uk.bb.gin.ntt.net ok)
11 129.250.4.85 75ms 83ms 83ms TTL: 0
(ae-0.r22.londen03.uk.bb.gin.ntt.net ok)
12 129.250.3.254 151ms 160ms 157ms TTL: 0
(as-0.r20.nycmny01.us.bb.gin.ntt.net ok)
13 129.250.2.26 151ms 156ms 165ms TTL: 0
(ae-0.r21.nycmny01.us.bb.gin.ntt.net ok)
14 129.250.2.9 151ms 175ms 178ms TTL: 0
(as-0.r20.asbnva02.us.bb.gin.ntt.net ok)
15 129.250.3.98 169ms 172ms 207ms TTL: 0
(ae-0.r21.chcgil09.us.bb.gin.ntt.net ok)
16 129.250.3.17 185ms 204ms 191ms TTL: 0
(as-1.r21.dllstx09.us.bb.gin.ntt.net ok)
17 157.238.225.6 190ms 201ms 197ms TTL: 0
(xe-2-4.r01.dllstx09.us.ce.gin.ntt.net fraudulent rDNS)
18 70.87.253.2 206ms 203ms 204ms TTL: 0
(te7-1.dsr01.dllstx3.theplanet.com fraudulent rDNS)
19 70.87.253.2 * 203ms * TTL: 0
(te7-1.dsr01.dllstx3.theplanet.com fraudulent rDNS)
20 70.87.254.138 356ms 200ms 209ms TTL: 0
(po1.car01.dllstx6.theplanet.com fraudulent rDNS)
21 70.87.254.138 322ms * 210ms TTL: 0
(po1.car01.dllstx6.theplanet.com fraudulent rDNS)
22 No Response * * *
23 No Response * * *
24 No Response * * *
25 No Response * * *
26 No Response * * *
27 No Response * * *
28 No Response * * *
29 No Response * * *




On dial-up

05/13/09 18:09:55 Fast traceroute 74.52.149.66
Trace 74.52.149.66 ...
1 xxx.xxx.xxx.xxx 2597ms 1889ms 3039ms TTL: 0
2 xxx.xxx.xxx.xxx 2585ms 1785ms 4416ms TTL: 0
3 213.253.132.74 2620ms 1707ms 4322ms TTL: 0
(Fa0-16.sw1.f1i14.iph.lon.as5587.net probable bogus rDNS: No DNS)
4 195.13.89.17 2603ms 1595ms 4239ms TTL: 0
(821.gi0-1.rtr2.iph.lon.as5587.net ok)
5 213.253.141.2222585ms 1493ms 4136ms TTL: 0
(900.gi0-0-0.rtr2.tc9.lon.as5587.net ok)
6 213.248.100.1892930ms 1642ms * TTL: 0
(ldn-tch-i1-link.telia.net probable bogus rDNS: No DNS)
7 80.91.250.209 * 1538ms * TTL: 0 (ldn-b5-link.telia.net
probable bogus rDNS: No DNS)
8 213.248.100.50 2813ms 1663ms * TTL: 0
(verio-129583-ldn-b5.telia.net probable bogus rDNS: No DNS)
9 129.250.5.237 2716ms 1579ms * TTL: 0
(ae-1.r23.londen03.uk.bb.gin.ntt.net ok)
10 129.250.4.85 2594ms 1962ms * TTL: 0
(ae-0.r22.londen03.uk.bb.gin.ntt.net ok)
11 129.250.3.254 2497ms 2000ms 4003ms TTL: 0
(as-0.r20.nycmny01.us.bb.gin.ntt.net ok)
12 129.250.2.26 2639ms 1938ms * TTL: 0
(ae-0.r21.nycmny01.us.bb.gin.ntt.net ok)
13 129.250.2.9 2786ms 1970ms 4041ms TTL: 0
(as-0.r20.asbnva02.us.bb.gin.ntt.net ok)
14 129.250.3.98 2687ms 1861ms * TTL: 0
(ae-0.r21.chcgil09.us.bb.gin.ntt.net ok)
15 129.250.3.17 2822ms 1752ms 3833ms TTL: 0
(as-1.r21.dllstx09.us.bb.gin.ntt.net ok)
16 157.238.225.6 2886ms 1650ms * TTL: 0
(xe-2-4.r01.dllstx09.us.ce.gin.ntt.net fraudulent rDNS)
17 70.87.253.2 2766ms 1567ms * TTL: 0
(te7-1.dsr01.dllstx3.theplanet.com probable bogus rDNS: No DNS)
18 70.87.253.2 * 1542ms * TTL: 0
(te7-1.dsr01.dllstx3.theplanet.com probable bogus rDNS: No DNS)
19 70.87.254.138 2517ms 1432ms 4174ms TTL: 0
(po1.car01.dllstx6.theplanet.com probable bogus rDNS: No DNS)
20 70.87.254.138 2424ms 1326ms 4057ms TTL: 0
(po1.car01.dllstx6.theplanet.com probable bogus rDNS: No DNS)
21 74.52.149.66 2423ms TTL: 46 (maple.site5.com ok)




 
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The Natural Philosopher
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      05-17-2009, 10:29 PM
Andy Burns wrote:
> MB wrote:
>
>> I Wonder if anyone here has any ideas why I have been unable to connect
>> to the SABRE website for the last few weeks.
>>
>> http://www.sabre-roads.org.uk/
>>
>> I have tried three different computers (two different OS and two
>> different firewalls), three routers and all behave the same.
>>
>> PING fails and TRACEROUTE gets to the last hop before the site.

>
> pings and traceroutes fine from here (on plusnet) one hop on the trace
> doesn't respond, but that's not so unusual
>
> Have you tried changing MTU settings on router and/or PC(s)?


yes. drop to 1400 MTU on the PC. Never mind the router.

This gets you past almost all layers as just about anything can handle a
1400 byte packet.
 
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MB
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      05-18-2009, 07:40 AM
The message <(E-Mail Removed) >
from Andy Burns <(E-Mail Removed)> contains these words:

> MB wrote:


> > I Wonder if anyone here has any ideas why I have been unable to connect
> > to the SABRE website for the last few weeks.
> >
> > http://www.sabre-roads.org.uk/
> >
> > I have tried three different computers (two different OS and two
> > different firewalls), three routers and all behave the same.
> >
> > PING fails and TRACEROUTE gets to the last hop before the site.


> pings and traceroutes fine from here (on plusnet) one hop on the trace
> doesn't respond, but that's not so unusual


> Have you tried changing MTU settings on router and/or PC(s)?



I had to change the MTU last year because I could not connect to a range
of sites using the Belkin router but the others were OK. It seems
strange that three PCs and three routers should all start having
problems but no one else seems to be affected.
 
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MB
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      05-18-2009, 07:49 AM
The message <guq34i$12n$(E-Mail Removed)>
from The Natural Philosopher <(E-Mail Removed)> contains these words:

> Andy Burns wrote:
> > MB wrote:
> >
> >> I Wonder if anyone here has any ideas why I have been unable to connect
> >> to the SABRE website for the last few weeks.
> >>
> >> http://www.sabre-roads.org.uk/
> >>
> >> I have tried three different computers (two different OS and two
> >> different firewalls), three routers and all behave the same.
> >>
> >> PING fails and TRACEROUTE gets to the last hop before the site.

> >
> > pings and traceroutes fine from here (on plusnet) one hop on the trace
> > doesn't respond, but that's not so unusual
> >
> > Have you tried changing MTU settings on router and/or PC(s)?


> yes. drop to 1400 MTU on the PC. Never mind the router.


> This gets you past almost all layers as just about anything can handle a
> 1400 byte packet.



The router is 1400

I can't remember what the PC was changed to but will check again later
(just trying to find where I put the utility to do so).


MB
 
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The Natural Philosopher
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Posts: n/a

 
      05-18-2009, 10:17 AM
MB wrote:
> The message <(E-Mail Removed) >
> from Andy Burns <(E-Mail Removed)> contains these words:
>
>> MB wrote:

>
>>> I Wonder if anyone here has any ideas why I have been unable to connect
>>> to the SABRE website for the last few weeks.
>>>
>>> http://www.sabre-roads.org.uk/
>>>
>>> I have tried three different computers (two different OS and two
>>> different firewalls), three routers and all behave the same.
>>>
>>> PING fails and TRACEROUTE gets to the last hop before the site.

>
>> pings and traceroutes fine from here (on plusnet) one hop on the trace
>> doesn't respond, but that's not so unusual

>
>> Have you tried changing MTU settings on router and/or PC(s)?

>
>
> I had to change the MTU last year because I could not connect to a range
> of sites using the Belkin router but the others were OK. It seems
> strange that three PCs and three routers should all start having
> problems but no one else seems to be affected.


It can be any router or switch (including BTS frame relay backhaul) in
the chain between you and target that is failing to do packet reassembly
correctly.
 
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MB
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      05-18-2009, 12:42 PM
The message <(E-Mail Removed) >
from Andy Burns <(E-Mail Removed)> contains these words:

> MB wrote:


> > It seems
> > strange that three PCs and three routers should all start having
> > problems but no one else seems to be affected.


> Not so strange if you happened to use the same tweaking tool (DrTCP by
> any chance?) to change all the PCs and they ended up at a size that is
> upsetting some picky web sites or intervening routers.



Fairly sure that I only changed the main PC (my laptop), I don't think I
bothered doing the laptop and the third one is a Vista PC virtually
"straight out of the box".

I will be putting some credit on my mobile broadband dongle next week
ready for a trip so will see what happens using that network and will
also be using some friends' broadband connections.

MB
 
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John
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      05-18-2009, 03:07 PM

"MB" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> I Wonder if anyone here has any ideas why I have been unable to connect
> to the SABRE website for the last few weeks.
>
> http://www.sabre-roads.org.uk/
>


This might be useful for you MB....

http://downforeveryoneorjustme.com/w...-roads.org.uk/

http://downforeveryoneorjustme.com

Sorry cant help you with why it doesn't work for you.

Regards



 
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