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Cannot visit certain oversea websites

New Poster

Cannot visit certain oversea websites

Anyone experienced similar issues?

 

My xfinity has always worked well until recently, when I noticed that I can no longer visit certain Chinese websites. However, if switch my wifi to xfinitywifi then it works immediately. I have also tried using my hotspot from the phone's AT&T LTE network, it works immediately too.

 

Theses websites include but not limited to:

pan.baidu.com

www.115.com

 

I have tried using some public DNS, no luck. I have rebooted the router and power cycled the modem enough times, no luck either. I have even tried to bypass the router and directly connect my laptop to the modem, the issue persists. I would appreciate if anyone could help here.

 

Expert

Re: Cannot visit certain oversea websites

FWIW, I can browse to them. Perhaps traces to the sites that you are having a problem with may reveal a clue ?


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Silver Problem Solver

Re: Cannot visit certain oversea websites


@Keiron wrote:

Anyone experienced similar issues?

 

My xfinity has always worked well until recently, when I noticed that I can no longer visit certain Chinese websites. However, if switch my wifi to xfinitywifi then it works immediately. I have also tried using my hotspot from the phone's AT&T LTE network, it works immediately too.

 

Theses websites include but not limited to:

pan.baidu.com

www.115.com

 

I have tried using some public DNS, no luck. I have rebooted the router and power cycled the modem enough times, no luck either. I have even tried to bypass the router and directly connect my laptop to the modem, the issue persists. I would appreciate if anyone could help here.

 


Perhaps they need a secure connection (https)?

https://115.com/


I am not a Comcast Employee.
I am just a customer, volunteering my time to help other customers here in the Forums.
Was your question answered? Mark the post as best answer!
Gold Problem Solver

Re: Cannot visit certain oversea websites


@Keiron wrote: ... I can no longer visit certain Chinese websites. ...

pan.baidu.com  www.115.com ...


I can reach those sites as well. 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.

 


... xfinitywifi ... works ...
... the phone's AT&T LTE network ... works ...

Switching to XfinityWifi or 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.

 

As asked above, what do traces to these sites show? In Windows, open a Command Prompt window, enter

    tracert -4 pan.baidu.com

and post the output. Mine looks like:

 

C>tracert -4 pan.baidu.com

Tracing route to yiyun.n.shifen.com [111.206.37.70] over a maximum of 30 hops:

1 27 ms 9 ms 9 ms router1 [192.168.1.1]
2 20 ms 17 ms 17 ms 96.120.9.181
3 27 ms 17 ms * te-0-6-0-0-sur02.york.pa.pitt.comcast.net [162.151.68.57]
4 16 ms 16 ms 18 ms 96.110.24.214
5 28 ms 18 ms 18 ms 96.110.25.65
6 26 ms 27 ms 26 ms be-34-ar01.mckeesport.pa.pitt.comcast.net [69.139.168.141]
7 39 ms 33 ms 34 ms be-7016-cr02.ashburn.va.ibone.comcast.net [68.86.91.25]
8 41 ms * 35 ms be-1102-cs01.ashburn.va.ibone.comcast.net [96.110.32.169]
9 39 ms 31 ms 31 ms be-1111-cr11.ashburn.va.ibone.comcast.net [96.110.32.106]
10 53 ms 54 ms 52 ms be-301-cr11.56marietta.ga.ibone.comcast.net [96.110.32.1]
11 53 ms 45 ms 56 ms be-1311-cs03.56marietta.ga.ibone.comcast.net [96.110.32.13]
12 * 46 ms 54 ms be-1302-cr02.56marietta.ga.ibone.comcast.net [96.110.32.78]
13 68 ms 69 ms 66 ms be-11423-cr01.houston.tx.ibone.comcast.net [68.86.85.22]
14 96 ms 87 ms * be-11523-cr02.losangeles.ca.ibone.comcast.net [68.86.87.173]
15 85 ms 95 ms 95 ms be-11599-pe01.losangeles.ca.ibone.comcast.net [68.86.84.194]
16 * 259 ms * 219.158.40.121
17 277 ms * 284 ms 219.158.96.33
18 285 ms * 275 ms 219.158.96.206
19 273 ms * 280 ms 219.158.103.41
20 280 ms * 296 ms 219.158.7.21
21 280 ms * 268 ms 124.65.194.78
22 * * * Request timed out.
23 269 ms * 270 ms 61.48.51.78
24 * * * Request timed out.
25 * * * Request timed out.
26 283 ms * 275 ms 111.206.37.70

Trace complete.

Gold Problem Solver

Re: Cannot visit certain oversea websites


@RobertWy wrote: .... Perhaps they need a secure connection (https)? ...

Not necessary. Both sites automatically switch http connections to https.

 

http://pan.baidu.com/ redirects to https://pan.baidu.com/

 

http://www.115.com/ redirects to http://115.com/, which redirects to https://115.com/.

 

Why do you not verify the information you post before you post it?

New Poster

Re: Cannot visit certain oversea websites

Hi, thanks a lot for your assistance. My tracert using both the home router and the xfinitywifi to pan.baidu.com are pasted below. 

 

using home gateway (cannot open the webpage)

traceroute to yiyun.n.shifen.com (111.206.37.70), 64 hops max, 72 byte packets

1  192.168.0.1 (192.168.0.1)  1.907 ms  1.140 ms  1.004 ms

2  96.120.72.117 (96.120.72.117)  11.989 ms  11.812 ms  10.719 ms

3  xe-2-1-0-sur01.eastwindsor.nj.panjde.comcast.net (68.86.154.69)  10.995 ms  11.030 ms  37.254 ms

4  96.108.142.249 (96.108.142.249)  15.867 ms  13.569 ms  14.067 ms

5  be-98-ar03.plainfield.nj.panjde.comcast.net (68.85.35.37)  27.304 ms  15.396 ms  12.538 ms

6  be-33659-cr01.newark.nj.ibone.comcast.net (68.86.90.21)  15.162 ms  14.839 ms  12.416 ms

7  be-10102-cr02.ashburn.va.ibone.comcast.net (68.86.85.161)  19.458 ms  21.083 ms  18.287 ms

8  be-1302-cs03.ashburn.va.ibone.comcast.net (96.110.32.177)  26.000 ms  18.917 ms  18.378 ms

9  be-1311-cr11.ashburn.va.ibone.comcast.net (96.110.32.114)  19.589 ms  19.185 ms  17.307 ms

10  be-301-cr11.56marietta.ga.ibone.comcast.net (96.110.32.1)  30.614 ms  30.891 ms  30.756 ms

11  be-1311-cs03.56marietta.ga.ibone.comcast.net (96.110.32.13)  31.843 ms  32.732 ms  30.907 ms

12  be-1302-cr02.56marietta.ga.ibone.comcast.net (96.110.32.78)  30.906 ms  31.817 ms  31.889 ms

13  be-11423-cr01.houston.tx.ibone.comcast.net (68.86.85.22)  51.298 ms  44.679 ms  44.286 ms

14  be-11523-cr02.losangeles.ca.ibone.comcast.net (68.86.87.173)  73.700 ms  74.818 ms  72.145 ms

15  be-11599-pe01.losangeles.ca.ibone.comcast.net (68.86.84.194)  73.068 ms  79.621 ms  73.386 ms

16  219.158.33.209 (219.158.33.209)  411.209 ms  292.873 ms  249.584 ms

17  219.158.96.29 (219.158.96.29)  255.334 ms  395.616 ms  306.243 ms

18  219.158.24.137 (219.158.24.137)  414.947 ms  326.609 ms  467.049 ms

19  * * *

20  * * *

21  * * *

22  * * *

23  * * *

24  * * *

25  * * *

26  * * *

27  * * *

28  * * *

29  * * *

30  * * *

31  * * *

32  * * *

33  * * *

34  * * *

35  * * *

36  * * *

37  * * *

38  * * *

39  * * *

40  * * *

 

 

using xfinitywifi (can open webpage)

traceroute to yiyun.n.shifen.com (111.206.37.70), 64 hops max, 72 byte packets

1  xfwsr12-plfi-01.sys.comcast.net (68.86.6.60)  29.531 ms  15.891 ms  17.734 ms

2  be-16-ar03.plainfield.nj.panjde.comcast.net (68.85.35.177)  17.007 ms  16.327 ms  16.886 ms

3  be-33659-cr01.newark.nj.ibone.comcast.net (68.86.90.21)  18.977 ms  16.558 ms  17.746 ms

4  be-10102-cr02.ashburn.va.ibone.comcast.net (68.86.85.161)  27.350 ms  26.590 ms  24.876 ms

5  be-1402-cs04.ashburn.va.ibone.comcast.net (96.110.32.181)  23.313 ms  23.629 ms  23.067 ms

6  be-1411-cr11.ashburn.va.ibone.comcast.net (96.110.32.118)  22.767 ms  23.248 ms  29.174 ms

7  be-301-cr11.56marietta.ga.ibone.comcast.net (96.110.32.1)  34.997 ms  36.625 ms  36.009 ms

8  be-1211-cs02.56marietta.ga.ibone.comcast.net (96.110.32.9)  35.332 ms  35.505 ms  37.566 ms

9  be-1202-cr02.56marietta.ga.ibone.comcast.net (96.110.32.74)  37.541 ms  44.111 ms  40.988 ms

10  be-11423-cr01.houston.tx.ibone.comcast.net (68.86.85.22)  50.359 ms  50.608 ms  49.870 ms

11  be-11523-cr02.losangeles.ca.ibone.comcast.net (68.86.87.173)  80.716 ms  77.904 ms  78.700 ms

12  be-11599-pe01.losangeles.ca.ibone.comcast.net (68.86.84.194)  76.152 ms  76.763 ms  75.214 ms

13  219.158.33.209 (219.158.33.209)  279.103 ms  369.080 ms  306.426 ms

14  219.158.98.49 (219.158.98.49)  313.955 ms  288.862 ms  324.614 ms

15  219.158.24.133 (219.158.24.133)  341.046 ms  447.199 ms  344.823 ms

16  219.158.19.65 (219.158.19.65)  346.070 ms *  404.046 ms

17  219.158.15.37 (219.158.15.37)  307.891 ms  283.173 ms  307.718 ms

18  * * 125.33.186.34 (125.33.186.34)  336.895 ms

19  * * *

20  61.48.51.58 (61.48.51.58)  356.561 ms  485.583 ms  512.240 ms

21  * * *

22  111.206.37.70 (111.206.37.70)  293.229 ms  409.332 ms  409.449 ms

Gold Problem Solver

Re: Cannot visit certain oversea websites


@Keiron wrote: ...

15  be-11599-pe01.losangeles.ca.ibone.comcast.net (68.86.84.194)  73.068 ms  79.621 ms  73.386 ms

16  219.158.33.209 (219.158.33.209)  411.209 ms  292.873 ms  249.584 ms

...

Hop #15 is the last Comcast router before the connection crosses the Pacific. Hop #16 is a router in China. As stated, Comcast is not blocking you, an operator in China is. You need to work with the admins of the problematic sites to get this cleared up.

New Poster

Re: Cannot visit certain oversea websites

I having same problem. The easiest solution is use another wireless router. I don't know why though. seems comcast will block some routers access oversea websites.