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tombuilder's avatar
tombuilder
Tuning in
2 years ago

Lost access to websites based in China

I realised that I've lost access to a lot of websites based in China about 20 days before. I've called the technical support and they told me they don't have this issue on their side but I guess this would be a nation wide problem rather than only to myself. I don't have any restrictions in the virgin media settings. They wanted to send somebody over to check in my house but I thought this is ridiculous since I don't think this is a hardware issue at all. Here are examples of websites I cannot visit. Please help. Many thanks.

.pku.edu.cn

.tsinghua.edu.cn

and all websites of chinese universities...

.sohu.com

 

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  • Roger_Gooner's avatar
    Roger_Gooner
    Alessandro Volta
    2 years ago

    I only got access to the third website. Here's the trace routes for the first two.

    In this one the request timed out well outside VM's network.

    C:\>tracert pku.edu.cn

Tracing route to pku.edu.cn [162.105.131.160]
over a maximum of 30 hops:

  1     2 ms     1 ms     1 ms  192.168.0.1
  2     *        *        *     Request timed out.
  3    10 ms    10 ms     8 ms  haye-core-2b-ae36-650.network.virginmedia.net [80.3.178.221]
  4     8 ms     9 ms     8 ms  haye-core-2a-ae1-0.network.virginmedia.net [80.3.176.177]
  5     *        *        *     Request timed out.
  6    10 ms    10 ms    12 ms  aor.uk-lon03a-ri1.network.virginmedia.net [62.254.42.174]
  7     *        *        *     Request timed out.
  8    10 ms    12 ms     9 ms  ldn-bb1-link.ip.twelve99.net [62.115.122.188]
  9    16 ms    16 ms    18 ms  prs-bb1-link.ip.twelve99.net [62.115.135.25]
 10    26 ms    27 ms    26 ms  mei-b4-link.ip.twelve99.net [62.115.118.219]
 11   204 ms   200 ms   205 ms  mei-b5-link.ip.twelve99.net [62.115.124.52]
 12     *        *        *     Request timed out.
 13   478 ms     *      450 ms  62.115.137.243
 14     *      222 ms     *     hnk-b4-link.ip.twelve99.net [62.115.112.223]
 15   208 ms   209 ms   211 ms  chinatelecom-ic-372206.ip.twelve99-cust.net [80.239.130.173]
 16   288 ms   290 ms   289 ms  101.4.114.221
 17   292 ms   279 ms   281 ms  101.4.114.169
 18   289 ms   285 ms   287 ms  101.4.117.161
 19   289 ms   280 ms   281 ms  101.4.116.94
 20   290 ms   287 ms   290 ms  101.4.117.134
 21   288 ms   287 ms   287 ms  202.112.41.181
 22   280 ms   280 ms   279 ms  202.112.41.2
 23   289 ms   287 ms   287 ms  162.105.252.234
 24   287 ms   287 ms   286 ms  162.105.253.58
 25     *        *        *     Request timed out.
 26     *        *        *     Request timed out.
 27     *        *        *     Request timed out.
 28     *        *        *     Request timed out.
 29     *        *        *     Request timed out.
 30     *        *        *     Request timed out.

Trace complete.

C:\>

    This one is odd as I had to prefix the domain name with www.

    C:\>tracert www.tsinghua.edu.cn

Tracing route to www.tsinghua.edu.cn [166.111.4.100]
over a maximum of 30 hops:

  1     2 ms     1 ms     1 ms  192.168.0.1
  2     *        *        *     Request timed out.
  3     9 ms    10 ms     8 ms  haye-core-2b-ae36-650.network.virginmedia.net [80.3.178.221]
  4     9 ms     9 ms    10 ms  haye-core-2a-ae1-0.network.virginmedia.net [80.3.176.177]
  5     *        *        *     Request timed out.
  6    11 ms     8 ms     8 ms  aor.uk-lon03a-ri1.network.virginmedia.net [62.254.42.174]
  7     *        *        *     Request timed out.
  8    12 ms    10 ms    12 ms  ldn-bb1-link.ip.twelve99.net [62.115.122.188]
  9   217 ms   215 ms   215 ms  hbg-bb3-link.ip.twelve99.net [80.91.249.11]
 10   218 ms   220 ms   218 ms  ffm-bb1-link.ip.twelve99.net [62.115.123.76]
 11    29 ms    28 ms    28 ms  prs-bb1-link.ip.twelve99.net [62.115.123.13]
 12    39 ms    37 ms    39 ms  mei-b4-link.ip.twelve99.net [62.115.118.219]
 13   222 ms   221 ms   222 ms  mei-b5-link.ip.twelve99.net [62.115.124.52]
 14     *        *        *     Request timed out.
 15   184 ms   186 ms   185 ms  62.115.137.243
 16   243 ms   243 ms   243 ms  hnk-b4-link.ip.twelve99.net [62.115.112.223]
 17   228 ms   228 ms   228 ms  chinatelecom-ic-372206.ip.twelve99-cust.net [80.239.130.173]
 18   307 ms   309 ms   310 ms  101.4.114.221
 19   298 ms   298 ms   299 ms  101.4.114.169
 20     *      307 ms   306 ms  101.4.117.161
 21   308 ms   308 ms   306 ms  101.4.113.201
 22   307 ms   309 ms   305 ms  202.112.38.10
 23   306 ms   306 ms   309 ms  118.229.4.74
 24   303 ms   302 ms   303 ms  118.229.2.66
 25   310 ms   310 ms   306 ms  118.229.8.6
 26     *        *        *     Request timed out.
 27   302 ms   303 ms   303 ms  www.tsinghua.edu.cn [166.111.4.100]

Trace complete.

C:\>
  • tombuilder's avatar
    tombuilder
    Tuning in
    12 months ago

    It seems the problem is gone automatically after nearly 3 months. As I mentioned, the problem only applies only if the website server is based in China. Most of the big websites do have servers outside mainland. Then to some it seems that everything is fine but it is not in fact.

    • Sabrina_B's avatar
      Sabrina_B
      Icon for Forum Team rankForum Team
      12 months ago

      Hi tombuilder 👋.

      Thanks for reaching back out to us, we had reports prior of these sites causing issues where they were being blocked despite them being educational bodies in China. Are you still facing issues with this? We had a discussion prior, please drop me a private message to continue this and i can chase up any updates.

      Sabrina

  • tombuilder's avatar
    tombuilder
    Tuning in
    12 months ago

    Now everything is fine since roughly the end of last week. It seems all websites with servers based in mainland China is accessible now. What really caused the issue? Many thanks.