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Re: Xifnity block some legitimate website internet service

Regular Visitor

Re: Xifnity block some legitimate website internet service

I have exactly the same issue. I can't access Baidu, China Construction Bank, and other websites hosted in China about one week ago. Now Baidu works but not China Contruction Bank and else. I contacted Customer Security Assurance and they ask me to contact the bank instead. 

Camcast needs to be transparent if they have some trigger in place to block our access to any website. We should be alerted on the block and also we should be able to dispute why we need access to the website.

Expert

Re: Xifnity block some legitimate website internet service

Perhaps traces to the sites may help reveal some clues ?



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Official Employee

Re: Xifnity block some legitimate website internet service

Hello all,

 

Could you please provide a traceroute? We recently had more inquiries regarding the websites from China but they were blocked by China side. 


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Regular Visitor

Re: Xifnity block some legitimate website internet service

Here are traceroute results from same laptop with both Verizon and Xfinity connection. The website ccb.com is not reachable on Xfinity, but it works on Verizon:

C:\>tracert ccb.com
Tracing route to ccb.com [202.106.80.78]
over a maximum of 30 hops:
  1     1 ms     1 ms     1 ms  192.168.2.1
  2    14 ms    12 ms    20 ms  96.120.xxx.xxx
  3    16 ms    12 ms    11 ms  162.151.161.185
  4    10 ms    11 ms    12 ms  68.87.230.42
  5    13 ms    16 ms    27 ms  be-141-ar01.area4.il.chicago.comcast.net [162.151.36.241]
  6     *       18 ms    15 ms  be-33491-cr02.350ecermak.il.ibone.comcast.net [68.86.91.165]
  7    42 ms    40 ms     *     be-10521-cr02.1601milehigh.co.ibone.comcast.net [68.86.85.170]
  8    46 ms    37 ms    38 ms  be-12021-cr01.champa.co.ibone.comcast.net [68.86.84.225]
  9    66 ms    61 ms    65 ms  be-11020-cr02.sunnyvale.ca.ibone.comcast.net [68.86.84.9]
 10    64 ms    63 ms    70 ms  be-11025-cr01.9greatoaks.ca.ibone.comcast.net [68.86.87.158]
 11    61 ms    62 ms    63 ms  be-12544-pe01.9greatoaks.ca.ibone.comcast.net [68.86.87.150]
 12    62 ms    65 ms    64 ms  as4837-pe01.11greatoaks.ca.ibone.comcast.net [75.149.229.42]
 13   229 ms   229 ms     *     219.158.117.1
 14     *        *      237 ms  219.158.3.133
 15     *        *        *     Request timed out.
 16     *        *        *     Request timed out.
 17     *        *        *     Request timed out.
 18     *        *        *     Request timed out.
 19     *        *        *     Request timed out.
 20     *        *        *     Request timed out.
 21     *        *        *     Request timed out.
 22     *        *        *     Request timed out.
 23     *        *        *     Request timed out.
 24     *        *        *     Request timed out.
 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:\>tracert ccb.com
Tracing route to ccb.com [124.127.108.78]
over a maximum of 30 hops:
  1     1 ms    <1 ms    <1 ms  192.168.1.1
  2    34 ms    36 ms    31 ms  xxx.sub-66-174-xxx.myvzw.com [66.174.xxx.xxx]
  3     *        *        *     Request timed out.
  4     *        *        *     Request timed out.
  5     *        *        *     Request timed out.
  6    34 ms    33 ms    33 ms  50.sub-69-83-89.myvzw.com [69.83.89.50]
  7    41 ms    26 ms    27 ms  194.sub-69-83-88.myvzw.com [69.83.88.194]
  8    59 ms    32 ms    38 ms  240.sub-69-83-80.myvzw.com [69.83.80.240]
  9    62 ms    29 ms    39 ms  240.sub-69-83-80.myvzw.com [69.83.80.240]
 10    60 ms    29 ms    34 ms  101.sub-66-174-49.myvzw.com [66.174.49.101]
 11    59 ms    28 ms    38 ms  0.ae10.GW11.CHI2.ALTER.NET [152.179.80.25]
 12    63 ms    32 ms    30 ms  0.ae2.BR3.CHI13.ALTER.NET [140.222.226.59]
 13    60 ms    29 ms    45 ms  be3076.ccr41.ord03.atlas.cogentco.com [154.54.11.81]
 14    67 ms    38 ms    47 ms  be2766.ccr42.ord01.atlas.cogentco.com [154.54.46.177]
 15    96 ms    51 ms    59 ms  be2832.ccr22.mci01.atlas.cogentco.com [154.54.44.169]
 16    98 ms    60 ms    76 ms  be3036.ccr22.den01.atlas.cogentco.com [154.54.31.89]
 17   111 ms    78 ms    77 ms  be3038.ccr32.slc01.atlas.cogentco.com [154.54.42.97]
 18   119 ms    79 ms    77 ms  be3110.ccr22.sfo01.atlas.cogentco.com [154.54.44.141]
 19   116 ms    92 ms    95 ms  be3670.ccr41.sjc03.atlas.cogentco.com [154.54.43.14]
 20   130 ms    89 ms    78 ms  38.104.138.106
 21    93 ms    86 ms    75 ms  202.97.50.53
 22   275 ms   239 ms   239 ms  202.97.51.194
 23   239 ms   219 ms   225 ms  202.97.15.45
 24     *      260 ms   243 ms  202.97.34.157
 25     *        *        *     Request timed out.
 26     *        *        *     Request timed out.
 27   278 ms   284 ms   271 ms  230.25.142.219.broad.bj.bj.dynamic.163data.com.cn [219.142.25.230]
 28   265 ms   219 ms   248 ms  124.127.108.123
 29   283 ms   240 ms   242 ms  124.127.108.78
 30     *        *      266 ms  124.127.108.78
Trace complete.

 

Thanks.

Gold Problem Solver

Re: Xifnity block some legitimate website internet service


@papapan wrote: ... ccb.com is not reachable on Xfinity, but it works on Verizon ...

I can reach ccb.com using my Comcast connection. When one customer cannot reach a site but others can, it usually means the site is blocking that customer's public Comcast IP. You can look up your IP at https://www.google.com/search?q=IP. You'll probably need to ask the site's admins for help with this.

 

Switching to another carrier's network presents a different IP address to the site. The fact that you can reach the sites with when your IP changes increases the probability that it's not Comcast that's blocking you, it's the site. Your trace shows this as well:

 


...
 12    62 ms    65 ms    64 ms  as4837-pe01.11greatoaks.ca.ibone.comcast.net [75.149.229.42]
 13   229 ms   229 ms     *     219.158.117.1

...

Hop #12 is the last Comcast hop. Hop #13 is an IP that assigned to China's "CNCGROUP". Your situation is similar to the one described in https://forums.xfinity.com/t5/Your-Home-Network/Cannot-visit-certain-oversea-websites/m-p/3235627.

 

My trace to ccb.com looks like this:

 


C>tracert -4 ccb.com

Tracing route to ccb.com [219.142.89.78] over a maximum of 30 hops:

1 34 ms 10 ms 10 ms router1 [192.168.1.1]
2 28 ms 26 ms 19 ms 96.120.9.181
3 18 ms 19 ms 17 ms te-0-6-0-0-sur02.york.pa.pitt.comcast.net [162.151.68.57]
4 40 ms 17 ms 18 ms 96.110.24.214
5 19 ms 24 ms * 96.110.25.65
6 49 ms 36 ms 28 ms be-34-ar01.mckeesport.pa.pitt.comcast.net [69.139.168.141]
7 38 ms 28 ms 35 ms 4.68.71.133
8 * * * Request timed out.
9 93 ms 101 ms 92 ms CHINA-TELEC.ear2.LosAngeles1.Level3.net [4.71.136.202]
10 * * * Request timed out.
11 * * * Request timed out.
12 * * * Request timed out.
13 * * * Request timed out.
14 * * * Request timed out.
15 * * * Request timed out.
16 * * * Request timed out.
17 265 ms * 252 ms 6.254.120.106.static.bjtelecom.net [106.120.254.6]
18 280 ms * 279 ms 46.5.142.219.broad.bj.bj.dynamic.163data.com.cn [219.142.5.46]
19 266 ms * 272 ms 219.142.89.123
20 270 ms * 269 ms 219.142.89.78
21 417 ms * 300 ms 219.142.89.78
22 * * * Request timed out.
23 284 ms * 285 ms 219.142.89.78

Trace complete.

Official Employee

Re: Xifnity block some legitimate website internet service

@papapan - Thank you! I was also able to reach ccb.com website. As BruceW mentioned, you may need to reach out to the CCB customer support and ask them to assist. 

 

@BruceW - Thank you for your help Smiley Happy


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