Wierd Web Browsing Issue

Fr0dders

Fr0dders

Fr0dders

Caporegime
Joined
18 Oct 2002
Posts
33,477
Location
West Yorks
I'm having issues accessing certain websites.

For example, i cannot currently connect to www.pistonheads.com

If i ping it, it resolves correctly. This is what happens when i run a traceroute:

Code: 
traceroute to www.pistonheads.com (195.225.218.139), 64 hops max, 52 byte packets
 1  192.168.1.1 (192.168.1.1)  0.628 ms  0.271 ms  0.279 ms
 2  cpc2-wake8-2-0-gw.barn.cable.virginmedia.com (77.97.161.1)  7.672 ms  8.770 ms  7.989 ms
 3  wake-geam-1a-ge220.network.virginmedia.net (81.97.80.149)  17.350 ms  8.635 ms  7.643 ms
 4  barn-geam-1a-tenge73.network.virginmedia.net (62.30.252.69)  9.584 ms  10.362 ms  8.046 ms
 5  brad-core-1a-tenge71.network.virginmedia.net (62.30.252.53)  8.217 ms  10.327 ms  7.983 ms
 6  manc-bb-1c-ae2-0.network.virginmedia.net (212.43.163.233)  8.649 ms  10.159 ms  8.286 ms
 7  manc-bb-1a-ae11-0.network.virginmedia.net (213.105.159.85)  7.555 ms  9.981 ms  8.080 ms
 8  brnt-bb-1b-ae1-0.network.virginmedia.net (212.43.163.86)  13.438 ms  14.827 ms  16.200 ms
 9  brnt-tmr-1-ae5-0.network.virginmedia.net (213.105.159.50)  16.647 ms  16.143 ms  15.974 ms
10  telc-ic-1-as0-0.network.virginmedia.net (62.253.185.74)  16.466 ms  15.884 ms  15.806 ms
11  te1-3.ccr01.lon04.atlas.cogentco.com (130.117.15.69)  16.268 ms  15.381 ms  15.893 ms
12  te2-8.mpd01.lon01.atlas.cogentco.com (130.117.3.189)  16.106 ms  12.502 ms  16.345 ms
13  brightview.demarc.cogentco.com (149.6.146.194)  16.506 ms  13.206 ms  16.043 ms
14  fe2-13.core1.lon2.carrenza.net (195.225.219.13)  16.083 ms  17.299 ms  15.481 ms
15  * * *
16  * * *
17  * * *

I also can't get onto flickr. This is what the traceroute for flickr shows me:

Code: 
traceroute to www.flickr.a00.yahoodns.net (66.196.118.48), 64 hops max, 52 byte packets
 1  192.168.1.1 (192.168.1.1)  0.486 ms  0.267 ms  0.263 ms
 2  cpc2-wake8-2-0-gw.barn.cable.virginmedia.com (77.97.161.1)  7.635 ms  7.407 ms  7.862 ms
 3  wake-geam-1a-ge220.network.virginmedia.net (81.97.80.149)  8.120 ms  7.216 ms  8.052 ms
 4  barn-geam-1a-tenge73.network.virginmedia.net (62.30.252.69)  9.836 ms  7.198 ms  7.832 ms
 5  brad-core-1a-tenge71.network.virginmedia.net (62.30.252.53)  8.103 ms  7.143 ms  8.097 ms
 6  manc-bb-1c-ae2-0.network.virginmedia.net (212.43.163.233)  7.768 ms  7.368 ms  7.863 ms
 7  manc-bb-1a-ae11-0.network.virginmedia.net (213.105.159.85)  12.215 ms  7.169 ms  8.146 ms
 8  glfd-bb-1b-ae1-0.network.virginmedia.net (213.105.175.146)  187.777 ms  16.429 ms  18.231 ms
 9  glfd-tmr-1-ae5-0.network.virginmedia.net (213.105.159.46)  13.903 ms  16.130 ms  16.306 ms
10  redb-ic-1-as0-0.network.virginmedia.net (62.253.185.78)  17.330 ms  17.495 ms  15.934 ms
11  83.245.9.226 (83.245.9.226)  106.352 ms  104.788 ms  107.931 ms
12  ae-6.pat2.dcp.yahoo.com (216.115.102.178)  105.505 ms  106.208 ms  104.149 ms
13  ae-1-d161.msr1.re1.yahoo.com (216.115.108.27)  141.579 ms
    ae-2-d171.msr2.re1.yahoo.com (216.115.108.71)  108.439 ms
    ae-1-d171.msr2.re1.yahoo.com (216.115.108.31)  105.921 ms
14  te-4-1.bas-b2.re2.yahoo.com (206.190.41.73)  105.589 ms
    te-3-1.bas-b1.re2.yahoo.com (206.190.41.67)  107.046 ms  105.044 ms
15  * * *
16  * * *

I've tried switching from Virgin Medias own DNS to using Open DNS - same probelm

I've tried switching devices, i've used my laptop, my desktop and my phone via wifi - all have the same problem. No problem if i use my 3g connection however.

I've rebooted everything, including router etc.. and come to a dead end. Beyond contacting virgin and preying to the tech support gods i get somebody who knows what they are on about, any suggestions ?

I ran a speed test. I'm on Virgin 50mb and got this :



so its not timing out because of speed.

Its not just these 2 websites either. There are loads, and seemingly random.
 
Last edited:
this is where it gets really wierd.

I get a squid web proxy Access denied error !!!

http://209.85.227.105/ for www.google.co.uk works fine.

But http://195.225.218.139 gives me this :

ERROR

The requested URL could not be retrieved

While trying to retrieve the URL: http://195.225.218.139/

The following error was encountered:

Access Denied.
Access control configuration prevents your request from being allowed at this time. Please contact your service provider if you feel this is incorrect.

Your cache administrator is root.
Generated Thu, 02 Jun 2011 00:13:38 GMT by squid (squid)
 
Run these in order then restart.

netsh int ip reset
netsh winsock reset

After the restart do the flush/register dns again and then see where we are.
 
If you having problems then virgin media have known issues tonight with certain sites. Same for us here.

The BBC is another prime site that either times out completely or loads very very slowly - even though speed tests and the DNS all check out fine. I also struggled getting cnet to load.

I'm currently using my 3G connection instead as i got fed up of finding sites that wouldn't load. No doubt it will be fixed by tomorrow morning though.

EDIT: That said our is slowly working better now. Some of the broken sites are now working fine again though there are still one or two little issues still to be fixed.
 
Last edited:
I posted on the VM forums and they suggested to try using VMs web proxy

webcache.virginmedia.com:8080

and huzzah ! my internet is back to full speed again. Definitely issues on their network.

It hasn't sorted my slow download speed on the app store for my iphone when using wifi, but i can at least use the internet properly while they fix it.
 
Just back to your traceroute info for a second, I get the same response from the last few hops when checking from a BE ADSL connection. It looks like in both cases your 'default' traceroute gets to the penultimate hop; try using the -I or -T switches with elevated privileges (assuming *nix OS).
 
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