s2.wp.com down?

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  markbl · Member · Mar 13, 2013 at 1:25 pm

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  I’m in the UK and having trouble at the moment accessing wordpress.com.

  Everything seems to hang at s2.wp.com or s0.wp.com

  On my DNS it looks like s0/s2.wp.com is an alias for http://cs82.wac.edgecastcdn.net/ which seems down/inaccessible for me.

  Is there a problem?

  Suggestions?

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  kardotim · Member · Mar 13, 2013 at 2:01 pm

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  There’s no disruption on our side. You can review our status page: http://status.automattic.com/

  Can you please try clearing out your cache?

  Do you also encounter this issue in a different browser? for example Safari or Google Chrome?

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  markbl · Member · Mar 13, 2013 at 2:29 pm

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  Different browsers, clearing caceh make no difference.
  Opening this page takes 5 minutes while requests to s2/s0 time out.

  $ host s2.wp.com
  s2.wp.com is an alias for cs82.wac.edgecastcdn.net.
  cs82.wac.edgecastcdn.net has address 93.184.220.111
  cs82.wac.edgecastcdn.net has IPv6 address 2606:2800:234:1922:15a7:17bf:bb7:f09
  $ ping 93.184.220.111
  PING 93.184.220.111 (93.184.220.111): 56 data bytes
  Request timeout for icmp_seq 0
  Request timeout for icmp_seq 1…..etc

  Isitdownforme etc all report cs82.wac.edgecastcdn.net. as down.

  I’m guessing edgecast are the ultimate file host for WP? perhaps there is an issue with DNS or something?

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  markbl · Member · Mar 13, 2013 at 3:21 pm

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  OK, I’m finding strange DNS results (throught two different DNS providers) Can someone pls confirm the real IP address for s2.wp.com

  Is it 93.184.220.111 or 72.21.91.111 or indeed something else entirely?

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  kardotim · Member · Mar 13, 2013 at 4:57 pm

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  The first IP is the correct IP. I took a look and everything is working properly. Are you visiting WordPress.com from a residential or business location? it’s possible that something is blocking the connection at your end. Please contact your local system/network administrator or your ISP (Internet Service Provider).

  Sorry for the inconvenience.

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  markbl · Member · Mar 13, 2013 at 5:18 pm

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  I think its more than that. Having done some more digging –

  Am I correct that you use the edgecast CDN cloud service? I suspect a config glitch or dns latency issue.

  The cloud load balancing will serve different IP addresses – which is happening, I now see 3 differnt IP addresses for s2.wp.com looking here: http://www.opendns.com/support/cache/
  (68.232.44.111 is the third)

  I suspect I’m just going to have a wait and see if things sort themselves out – but I’m pretty sure it isnt a local issue.

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  markbl · Member · Mar 13, 2013 at 8:28 pm

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  OK – it was local.

  I curse the billion bipac 7402 which chooses to randomly implement firewall features whcih are explicitly disabled and then place ‘offending’ sites in a hidden blacklist which cannot be viewed at all and can only be cleared after you enable the firewall feature which is not enabled.
  apparently a ‘quirk’ of the device.

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  kardotim · Member · Mar 13, 2013 at 9:28 pm

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  Happy to hear it’s resolved now :)

  Cheers