Amazon.co.uk partially inaccessible - CDN connection to Eircom?

Red Alert

As of a couple of days ago SSL pages from Amazon.co.uk (Your Account etc) and Bitbucket.org are both consistently timing out on load. On closer inspection, it actually seems to involve connections to cloud front (Amazon's CDN that they and some other sites use for hosting images and CSS).

This only happens at home on my eircom connection, and not at work. Trace route looks OK. If I do the download in curl on the command line, the connection seems to establish and SSL handshaking occurs but no data gets transferred:

Peadars-Laptop:Desktop peadar$ curl -v https://d3oaxc4q5k2d6q.cloudfront.net/m/fca28d008748/css/entry/app.css
*   Trying 52.85.189.166...
* Connected to d3oaxc4q5k2d6q.cloudfront.net (52.85.189.166) port 443 (#0)
* ALPN, offering http/1.1
* Cipher selection: ALL:!EXPORT:!EXPORT40:!EXPORT56:!aNULL:!LOW:!RC4:@STRENGTH
* successfully set certificate verify locations:
*   CAfile: /opt/local/share/curl/curl-ca-bundle.crt
  CApath: none
* TLSv1.2 (OUT), TLS header, Certificate Status (22):
* TLSv1.2 (OUT), TLS handshake, Client hello (1):

... at this point the connection just hangs.

If I try the command when logged onto a remote server at work (via HEANet) there is no problem, the file is immediately downloaded. Could you explain why this could be happening?

eir: Alan

Red Alert wrote: »

As of a couple of days ago SSL pages from Amazon.co.uk (Your Account etc) and Bitbucket.org are both consistently timing out on load. On closer inspection, it actually seems to involve connections to cloud front (Amazon's CDN that they and some other sites use for hosting images and CSS).

This only happens at home on my eircom connection, and not at work. Trace route looks OK.  If I do the download in curl on the command line, the connection seems to establish and SSL handshaking occurs but no data gets transferred:

Peadars-Laptop:Desktop peadar$ curl -v https://d3oaxc4q5k2d6q.cloudfront.net/m/fca28d008748/css/entry/app.css
*   Trying 52.85.189.166...
* Connected to d3oaxc4q5k2d6q.cloudfront.net (52.85.189.166) port 443 (#0)
* ALPN, offering http/1.1
* Cipher selection: ALL:!EXPORT:!EXPORT40:!EXPORT56:!aNULL:!LOW:!RC4:@STRENGTH
* successfully set certificate verify locations:
*   CAfile: /opt/local/share/curl/curl-ca-bundle.crt
  CApath: none
* TLSv1.2 (OUT), TLS header, Certificate Status (22):
* TLSv1.2 (OUT), TLS handshake, Client hello (1):

... at this point the connection just hangs.

If I try the command when logged onto a remote server at work (via HEANet) there is no problem, the file is immediately downloaded.  Could you explain why this could be happening?

Hi Red Alert

I'm sorry to hear you are experiencing issues, the best advice we can offer here is to contact eir technical support for asistance in resolving this - you can reach them on 1890260260 or via WebChat at www.eir.ie/chatnow

Further to that I would recommend checking your DNS settings - details on this can be found on the eir community here: https://community.eir.ie/broadband-25/how-to-change-dns-on-f2000-92757

Thanks
AL

Red Alert

Thanks Alan.  I did actually discover a fix: disabling UPnP seems to solve the problem, for what reason I don't know.

eir: Alan

Red Alert wrote: »

Thanks Alan.  I did actually discover a fix: disabling UPnP seems to solve the problem, for what reason I don't know.

Cheers for the update Red Alert

Al