Folding Forum

Posted: **Sat Dec 06, 2008 11:24 pm**

The other day I was accessing the forum without delay for quite some time. Then it SUDDENLY started being very slow or completely hanging. After confirming that other sites were still working properly I captured this data. I don't think it shows anything we don't already know. (I blame singlehop, since that's where the tracert seems to have failures)

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  6    23 ms    17 ms    17 ms  ae-63-63.ebr3.LosAngeles1.Level3.net [4.69.137.33]
  7    28 ms    19 ms    19 ms  ae-2.ebr3.SanJose1.Level3.net [4.69.132.9]
  8    29 ms    18 ms    19 ms  ae-73-73.csw2.SanJose1.Level3.net [4.69.134.230]
  9    19 ms    19 ms    19 ms  ae-72-72.ebr2.SanJose1.Level3.net [4.69.134.213]
 10    50 ms    52 ms    54 ms  ae-3.ebr1.Denver1.Level3.net [4.69.132.58]
 11    56 ms    54 ms    52 ms  ae-1-100.ebr2.Denver1.Level3.net [4.69.132.38]
 12    69 ms    68 ms    69 ms  ae-3.ebr1.Chicago2.Level3.net [4.69.132.62]
 13    72 ms    73 ms    69 ms  ae-6.ebr1.Chicago1.Level3.net [4.69.140.189]
 14    69 ms    69 ms    69 ms  ae-13-55.car3.Chicago1.Level3.net [4.68.101.135]
 15    66 ms    65 ms    65 ms  263.xe-0-3-0.cr2.ord1.us.scnet.net [4.71.100.38]
 16    65 ms    66 ms    68 ms  v21.ar2.ord1.us.scnet.net [216.246.95.244]
 17    67 ms    66 ms    66 ms  as32475.1614.tge4-4.ar2.ord1.us.scnet.net [75.102.19.138]
 18    66 ms    66 ms    65 ms  216.104.35.221
 19    68 ms     *       69 ms  dr02.ord02.singlehop.net [67.212.191.186]
 20     *       68 ms    68 ms  ns1.m202.sgded.com [99.198.108.202]

Trace complete.


Pinging foldingforum.org [99.198.108.202] with 32 bytes of data:
Request timed out.
Reply from 99.198.108.202: bytes=32 time=65ms TTL=52
Reply from 99.198.108.202: bytes=32 time=66ms TTL=52
Request timed out.

Ping statistics for 99.198.108.202:
    Packets: Sent = 4, Received = 2, Lost = 2 (50% loss),
Approximate round trip times in milli-seconds:
    Minimum = 65ms, Maximum = 66ms, Average = 65ms

C:\Users\gloria>ping foldingforum.org

Pinging foldingforum.org [99.198.108.202] with 32 bytes of data:
Reply from 99.198.108.202: bytes=32 time=66ms TTL=52
Request timed out.
Reply from 99.198.108.202: bytes=32 time=66ms TTL=52
Reply from 99.198.108.202: bytes=32 time=66ms TTL=52

Ping statistics for 99.198.108.202:
    Packets: Sent = 4, Received = 3, Lost = 1 (25% loss),
Approximate round trip times in milli-seconds:
    Minimum = 66ms, Maximum = 66ms, Average = 66ms

Posted: **Fri Dec 12, 2008 7:19 pm**

uncle_fungus wrote:I've opened a supported ticket about this with our hosting provider, so hopefully we can get this resolved asap.

It's now December 12 and the problem persists. Any news?

Posted: **Fri Dec 12, 2008 8:06 pm**

I'm re-raising the issue with them.

Posted: **Fri Dec 12, 2008 9:10 pm**

Our hosting provider agrees that the black hole appears to be occurring at the singlehop router, however they don't have any other customers reporting the same problem. Has anyone who contacted their ISPs or singlehop had any sort of response from them so far? In the meantime I'll try and contact singlehop and see if I can get them to take a look at their router.

Posted: **Tue Dec 16, 2008 9:01 pm**

Well, I tried getting in touch with Roger's to see if they could contact SingleHop and work with them...

I''m encountering what appears to be a routing issue and/or a misconfigured router when I attempt to access a web based forum at http://foldingforum.org

The admin''s on that site have been it touch with their hosting firm who seem to feel the issue is with a router managed by SingleHop.

Could someone from Rogers Network support review a thread at viewtopic.php?f=27&t=6907 and see if they can get any response from SingleHop.

Thanks

As expected, they give the standard, useless reply

We apologize for the delay in responding to your email. We are currently receiving higher email volume than normal, and are attempting to answer all email as quickly as possible in the order they arrive.

Thank you for following up with this issue.

We have examined the trace route that you have sent to us and we do not recognize any problems from the trace route results.

From this trace route, all Rogers?s hops are within specifications. The lag is being experienced off the Rogers network. After the data has left the Rogers network, we no longer have control over how it is routed. For this issue, please contact the website administrator in question so they can contact the SingleHop router administrators.

Also, we have performed a series of tests on your cable modem and connection and it does appear to be working properly at this time. [We are able to communicate to your modem and there is 0% packet loss on your modem. Also, we have looked at your entire network segment as well
as your modem levels and observed the levels are within specification.]

For further information on our Rogers services, please access the Rogers Internet Help website at:

http://help.yahoo.com/rogers/

We apologize for any inconvenience.

If you have any further questions or comments regarding our service, please fill out the online form on our Customer Support page listed below or contact us by phone at 1-888-288-4663.

Regards,
Pradeep K.
Rogers Hi-Speed Internet
Electronic Support Group

Customer Support: http://help.yahoo.com/rogers
Email: [email protected]

Rogers Hi-Speed Internet Support

Posted: **Tue Dec 30, 2008 9:00 pm**

uncle_fungus wrote:Has anyone who contacted their ISPs or singlehop had any sort of response from them so far?

Nothing meaningful from either SITEGROUND nor Rogers. SINGLEHOP did not condescend to respond to my inquiry at all.

Since this situation is entering its 8th week, I cannot help wondering whether you've made a mistake giving SITEGROUND/SINGLEHOP your forum hosting business.

Posted: **Tue Dec 30, 2008 9:08 pm**

I've had discussions with both siteground and singlehop, and neither of them can find anything wrong with either the server, or the connection to the server. The singlehop router itself is working fine as it is forwarding packets on to our server (as well as responding during the ping/traceroutes), but for some reason the packets then disappear. I'm still working to get this resolved, but the problem isn't obvious to either myself or the siteground/singlehop network engineers.

Posted: **Fri Jan 23, 2009 10:29 pm**

Uncle Fungus,
Unfortunately, this issue is still occuring. In my post http://foldingforum.org/viewtopic.php?f=27&t=8087, I report that this problem has been occuring fairly often over the last week, and that I experience problems access the forums from both my home and office PC, although the don't share the same ISP. (My home PC does use Rogers as the ISP)

The current tracert for my office PC is (I will post my home PC tracert route separately):

Code: Select all

Tracing route to foldingforum.org [99.198.108.202] over a maximum of 30 hops:

  {Edited to protect the innocent}
  5     8 ms     8 ms     8 ms  border5-faste0-0.magma.ca [209.217.64.42]
  6     8 ms     9 ms     8 ms  0.gigabitethernet2/0.gw2.ott1.alter.net [209.167.168.237]
  7    11 ms    11 ms    11 ms  127.at-5-0-0.xr2.mtl1.alter.net [152.63.131.182]
  8    11 ms    11 ms    11 ms  0.so-0-0-0.xt2.mtl1.alter.net [152.63.133.41]
  9    23 ms    23 ms    23 ms  0.so-6-3-0.xl4.nyc4.alter.net [152.63.0.73]
 10    22 ms    22 ms    24 ms  0.ge-2-3-0.br3.nyc4.alter.net [152.63.3.134]
 11    21 ms    21 ms    21 ms  204.255.169.230
 12    38 ms    22 ms    51 ms  xe-1-0-0.er2.lga5.us.above.net [64.125.27.50]
 13    22 ms    25 ms    22 ms  ge-1-2-0.mpr2.lga5.us.above.net [64.125.26.165]
 14    38 ms    38 ms    37 ms  so-1-1-0.mpr2.ord2.us.above.net [64.125.27.33]
 15    38 ms    37 ms    37 ms  xe-0-1-0.er2.ord2.us.above.net [64.125.25.110]
 16    38 ms    39 ms    37 ms  64.124.200.138
 17    38 ms    38 ms     *     216.104.35.221
 18    42 ms    38 ms    42 ms  dr02.ord02.singlehop.net [67.212.191.186]
 19    38 ms    37 ms    38 ms  ns1.m202.sgded.com [99.198.108.202]
Trace complete.

As you can see, the tracert is completely different from that posted by codysluder, except for the last 3 entries.

This suggests that the problem is (indeed) at singlehop, since the chances of 4 distinct paths (codesluder, mhouston, my home and my office) encountering a connection/routing problem are extremely remote.

Posted: **Sat Jan 24, 2009 12:18 am**

I'm having problems accessing the forums from home through AT&T DSL, but connecting through my school (vpn or on campus) works.

Here's my trace route from home that fails:

Code: Select all

Tracing route to foldingforum.org [99.198.108.202]
over a maximum of 30 hops:

  1    <1 ms    <1 ms    <1 ms  unknown [192.168.1.1] 
  2     6 ms     6 ms     6 ms  adsl-99-141-63-254.dsl.chcgil.sbcglobal.net [99.141.63.254] 
  3     *        6 ms     6 ms  dist2-vlan52.chcgil.sbcglobal.net [99.164.168.130] 
  4     6 ms     6 ms     6 ms  bb2-g3-0.chcgil.ameritech.net [151.164.190.122] 
  5     7 ms     6 ms     6 ms  ex3-p8-1.eqchil.sbcglobal.net [151.164.191.250] 
  6     6 ms     6 ms     6 ms  asn6461-abovenet.eqchil.sbcglobal.net [151.164.251.46] 
  7     6 ms     7 ms     7 ms  so-0-1-0.mpr1.ord2.us.above.net [64.125.30.146] 
  8     6 ms     7 ms     6 ms  xe-1-1-0.er1.ord2.us.above.net [64.125.26.186] 
  9     6 ms     7 ms     6 ms  64.124.200.142 
 10     *        *        7 ms

And through Northwestern's VPN

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Tracing route to foldingforum.org [99.198.108.202]
over a maximum of 30 hops:

  1     8 ms     9 ms     9 ms  vpn-public.vpn.northwestern.edu [129.105.253.246] 
  2     9 ms     9 ms     9 ms  lev-mdf-3-vln-52.northwestern.edu [165.124.160.1] 
  3     9 ms     9 ms     9 ms  lev-5-vln-4041.northwestern.edu [129.105.247.6] 
  4     9 ms     9 ms    10 ms  abbt-mdf-3-vln-696.northwestern.edu [129.105.253.154] 
  5    10 ms    11 ms    11 ms  abbt-mdf-4-ge-0-3-0.northwestern.edu [129.105.253.23] 
  6    14 ms    17 ms    17 ms  starlight-mren-cps.northwestern.edu [199.249.169.10] 
  7    12 ms    13 ms    10 ms  STATIC_86.240.220.206.gramtel.net [206.220.240.86] 
  8    10 ms    10 ms     9 ms  xe-0-1-0-308.cr2.ord1.us.nlayer.net [69.31.111.89] 
  9    43 ms    10 ms    10 ms  111.xe-3-3-0.cr2.ord1.us.scnet.net [216.246.88.146] 
 10    10 ms    11 ms    10 ms  v21.ar2.ord1.us.scnet.net [216.246.95.244] 
 11    11 ms    11 ms    11 ms  as32475.1614.po2.ar2.ord1.us.scnet.net [75.102.19.138] 
 12    11 ms    11 ms    12 ms  216.104.35.221 
 13    12 ms    11 ms    19 ms  dr02.ord02.singlehop.net [67.212.191.186] 
 14    11 ms    10 ms    10 ms  ns1.m202.sgded.com [99.198.108.202] 

Trace complete.

Posted: **Sat Jan 24, 2009 12:25 am**

skinnykid63 wrote:I'm having problems accessing the forums from home through AT&T DSL, but connecting through my school (vpn or on campus) works.

I'm not sure we can draw that conclusion. I'm frequently on the forum for long periods of time. From here it's fine 98% of the time, but then there's that occasional time when I can't get through and it always seems to stop at singlehop.net.

Of course if tracert sometimes works from your home, we might know more than we do now.

Posted: **Sat Jan 24, 2009 1:21 am**

I'll keep trying the forums from home. As best as I can recall, I couldn't access the forums back in early Dec or around when others were noticing the problem, then the problem went away and came back within the last week. It is possible that I just happened to be on VPN or campus every time I checked the forums, but I believe that I was getting through from home normally between then and now.

Posted: **Sat Jan 24, 2009 4:39 am**

My access from home failed! My tracert is:

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Tracing route to foldingforum.org [99.198.108.202] over a maximum of 30 hops:
 ...
 5     6 ms     7 ms     7 ms  so-1-0-0.gw02.ym.phub.net.cable.rogers.com [66.185.80.166]
 6    48 ms    49 ms    49 ms  pos-3-0.igw01.chfdrl.phub.net.cable.rogers.com [66.185.81.1]
 7    54 ms    51 ms    50 ms  so-0-2-2.mpr1.ord2.us.above.net [64.124.11.25]
 8    48 ms    48 ms    48 ms  xe-0-1-0.er1.ord2.us.above.net [64.125.25.106]
 9    35 ms    34 ms    35 ms  64.124.200.142
10    34 ms    38 ms    35 ms  216.104.35.221
11    35 ms    47 ms    34 ms  dr02.ord02.singlehop.net [67.212.191.186]
12     *        *        *     Request timed out.

skinnykid63 wrote:

Code: Select all

Tracing route to foldingforum.org [99.198.108.202] over a maximum of 30 hops:
 ...
 8     6 ms     7 ms     6 ms  xe-1-1-0.er1.ord2.us.above.net [64.125.26.186] 
 9     6 ms     7 ms     6 ms  64.124.200.142
 10     *        *        7 ms

skinnykid63,

I think we have a pattern here! The common element seems to be at 64.124.200.142!

It appears in both cases where the access is failing.

Posted: **Sat Jan 24, 2009 7:58 pm**

FYI, access from my Home PC continues to fail

Posted: **Fri Jan 30, 2009 3:37 am**

One thing that I've noticed: The time-of-day that I've seen this happen seems to have been more or less limited to around 07:30 to 08:30 UTC (or 23:30 to 00:30 here in PST) and it seems to last for about 15 minutes. That may or may not be the same times that others have seen the problem since that information hasn't been reported.

I have not tracked the times accurately yet, but I will report that information in the future. I suggest that others do the same.

Posted: **Fri Jan 30, 2009 5:36 pm**

I haven't been able to connect from home during any time of day. The time stamp on my previous post is fairly close to when I did the trace route. I haven't had any problems accessing the forums using a university connection (VPN or on campus).

For reference, here is my trace route from on campus just now ~11:30 CST

Code: Select all

Tracing route to foldingforum.org [99.198.108.202]
over a maximum of 30 hops:

  1    <1 ms    <1 ms    <1 ms  fwalker-idf-vln-496.northwestern.edu [129.105.163.1] 
  2    <1 ms    <1 ms    <1 ms  lev-mdf-6-vln-55.northwestern.edu [129.105.253.37] 
  3    <1 ms    <1 ms    <1 ms  lev-4-vlan-4002.northwestern.edu [129.105.247.4] 
  4    <1 ms    <1 ms    <1 ms  abbt-mdf-2-vln-754.northwestern.edu [129.105.253.152] 
  5     1 ms     1 ms     1 ms  abbt-mdf-4-ge-0-1-0.northwestern.edu [129.105.253.21] 
  6     8 ms     1 ms     1 ms  starlight-mren-cps.northwestern.edu [199.249.169.10] 
  7     1 ms     4 ms     1 ms  STATIC_86.240.220.206.gramtel.net [206.220.240.86] 
  8     1 ms     1 ms     1 ms  xe-0-1-0-308.cr2.ord1.us.nlayer.net [69.31.111.89] 
  9     1 ms     1 ms     1 ms  111.xe-3-3-0.cr2.ord1.us.scnet.net [216.246.88.146] 
 10     1 ms     1 ms     1 ms  v21.ar1.ord1.us.scnet.net [216.246.95.243] 
 11     1 ms     4 ms     1 ms  as32475.1514.tge4-4.ar1.ord1.us.scnet.net [75.102.19.130] 
 12     *        2 ms     5 ms  216.104.35.221 
 13     2 ms     2 ms     2 ms  dr02.ord02.singlehop.net [67.212.191.186] 
 14     1 ms     1 ms     1 ms  ns1.m202.sgded.com [99.198.108.202] 

Trace complete.

Folding Forum

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