A total Stumper

[KarenMarie]

Ok, I asked a question in Tech Support forum and no one could find the answer. I went to another tech board of which I have been a member for years, where the top ppl in the world answer questions for points. They were stumped.

Just curious to whether anyone here can figure this out. It is 'semi' resolved thru a get around... just wondering what you guys think.

I could not gain access to one website. The internet worked fine and dandy, except for this one site. I have three systems in the house, two laptops and a desktop. My network is wireless thru a Motorola SGB900 modem/gateway.

I have tried to gain access to this one website for almost a month. Never could, not once. It does not matter what time of the day or night or day of the week I try. I try thru FF and thru IE. IE cannot display and FF times out. I cannot ping the address from a command prompt and tracert fails all hops.

I made sure that cookies/history are deleted. I have never been able to connect to the site so I did that as a formality. And since each machine has different versions, plugins and extentions of both FF and IE I am guessing it is not a software issue. I have made sure that the site was added to all white lists and trusted site lists.

I have disabled all firewalls and antivirus software. One machine is running Trend Micro, one McAfee and one AVG. there is a firewall on the modem/gateway and I have disabled that as well. I have reset the modem/gateway. I have power cycled the modem/gateway. I have hard wired into the modem/gateway. I have totally reset the modem/gateway to the factory defaults thru the motorola page.

I have FULL ACCESS to this website thru a web proxy but that is the ONLY way I access this site. Since I have access thru the proxy, the issue to me is semi resolved.

I am just curious at to what the great minds on AnandTech think.

 

[spidey07]

Welcome to network forum KarenMarie.

It would help if we knew the website you're trying to access (if you don't want to divulge, PM me)

1st thing that comes to mind is name resolution - open up your hosts file (can't remember the exact path, somthing like win32\etc\drivers) and make sure there aren't any entries for this site. Also to confirm good name resolution do a nslookup on the site in question and make sure you are getting the correct IP. nslookup will make sure you have good resolution from a name to an IP thru your name server - but that doesn't mean a dang if there is something in your hosts file.

If the name resolves properly then we're dealing with a L4-7 problem.

If you could please, from a command prompt do "telnet <ip address of website> 80" or "telnet <url> 80" and hit return a couple times. you should see something on your screen, as in the server telling you to go away. You're communicating directly to port 80 at this point and if you don't get a response then something is awry.

also - many/most websites will not respond to a ping so it isn't a reliable means of testing. As are traceroute.

-edit-
post output of "ping <fully qualified domain name of site>"
post output of "tracert -d <IP address of site>"

feel free to take out any information you don't want to share.

Also - what exactly is the error message the browser is giving you?

 

[KarenMarie]

http://www.pedigree.com/ptr/2006/default.asp?CSID=475

Well, any page that has anything to do with pedigree.com

no secret.

just didn't want ppl thinking i was looking for tech support, which i am not.. as the OP states, I have a semi resolution. Dont want those pesky correctional Mods coming in here and locking the thread for being in the wrong forum.


there is nothing in my hosts file but that one IP address, 127.0.0.1
I checked that when looking for evil presences lurking. Also ran spybot, adaware and hjack this.

As for your telnet suggestion...

Text
Text
Text
Text


thanks, spidey.

 

[JackMDS]

I have a suspicion that it is a badly coded site.

I use a Cookie control program; the application blocked the site cookies. The cite kept trying to deposit the cookie 100 (one hundred) times before giving up.

Both IE and FF show only the top part of the index page and leave 90% of the page Black.

Some of the links that appears at the top work, some get into ?limbo?.

This usually happen when an author use a none mainstream configured browser on his own system, and does not bother to check how the pages actually look if you try them with regularly configured IE or FF etc.

:sun:

 

[KarenMarie]

Thye parent company of pedigree.com is called Masterfoods... in the usa, known as MARS.

http://www.mars.com/Mars+Directory/United+States/Company+Search+Results.htm

I can instantly access every link to every site on that page EXCEPT pedigree.com and Ceasar.com

ha!

 

[ScottMac]

Can you get into this site from any other PCs?

Is there a chance maybe that you (well, your address) are locked out of this site (like a spam filter kinda thingy)? I don't mean from them to you ; I mean from you to them; they block your inbound traffic.

Does this site use encryption (https://)? Have you tried cutting your MSS / MTU down to ~1476 (or smaller)?

www.dslreports.com | tests - look for DRTCP (drtcp.exe) - it'll let you change the MTU on your PC.

Try using their IP address instead of their name.

And, just to cover the bases, is this site located on your LAN .... such that everyone else (on the "outside") is using a publc IP address that is translated to a private address, but you (being located on the same network) can't get to the server by using the public IP address? (in which case you shoud be able to hit it by using the private address - not the name -)?

If that's the case, then edit the C:\WINDOWS\SYSTEM32\DRIVERS\ETC\HOSTS file and add the internal address (the private address) of the server. Just follow the example already in the file (IP ADDRESS <tab> hostname)

You may want to just put it in there anyway .... maybe the DNS you're hitting is feeding you a bad address. Try using NSLOOKUP, then WHOIS and see if the information agrees. OR maybe try another DNS.

Check to see if things like scripting are enabled in your browser(s) (like JavaScript, ActiveX, etc).

Good LUck

Scott

 

[JackMDS]

LOL.

So much Junk Food. Your browser probably want to stay Healty.

:sun:

 

[KarenMarie]

Cannot access that site from any system thru any browser in the house. two laptops and one desktop. I even downloaded opera for the day on each machine to test it out.

http://www.kloth.net/services/nslookup.php tells me that the IP is 164.109.83.255

which is correct as show in one of my MANY attempts to ping/tracert the site thru name and ip.
http://pics.apartment808.com/users/KarenMarie/tracert.JPG

All Java, Shockwave and etc have been updated on all machines since this issue.

dont know if this is interesting or not:

http://www.dnsstuff.com/tools/ping.ch?ip=164.109.83.255
http://www.whois-search.com/whois/www.pedigree.com
http://www.whois-search.com/whois/164.109.83.255

does it look like my modem/gateway is taking the www. address and turning it into the wrong IP? or am i just reading something incorrectly?

 

[KarenMarie]

Originally posted by: JackMDS
LOL.

So much Junk Food. Your browser probably want to stay Healty.

:sun:

Hahaha

THIS is what I was after. Works fine.. slow, but fine... thru a web proxy.

 

[spidey07]

Nice info KarenMarie. the pics and results help alot.

Judging from your pics....I mean WOW. something is fubarred.

you're resolving names just fines, and I'm not surprised by your first hop dropping traceroutes, normal.

only two things come to mind...

1) if you have a SOHO router, reset it.
2) most likely - you're provider has a routing problem

Send this to your provider. If I know the******/DST of your session I can tell a lot more, but from your awesome information provided I'm 90% sure it is a routing problem with your provider.

route-server>sh ip bgp 164.109.83.255
BGP routing table entry for 164.109.0.0/17, version 70820
Paths: (19 available, best #19, table Default-IP-Routing-Table)
Not advertised to any peer
7018 701 3707, (received-only)
12.0.1.1 from 12.0.1.63 (12.0.1.63)
Origin IGP, localpref 100, valid, external
Community: 7018:5000
7018 701 3707, (received & used)
12.123.21.243 from 12.123.21.243 (12.123.21.243)
Origin IGP, localpref 100, valid, external
Community: 7018:5000
7018 701 3707, (received & used)
12.123.142.124 from 12.123.142.124 (12.123.142.124)
Origin IGP, localpref 100, valid, external
Community: 7018:5000
7018 701 3707, (received & used)
12.123.139.124 from 12.123.139.124 (12.123.139.124)
Origin IGP, localpref 100, valid, external
Community: 7018:5000
7018 701 3707, (received & used)
12.123.13.241 from 12.123.13.241 (12.123.13.241)
Origin IGP, localpref 100, valid, external
Community: 7018:5000
7018 701 3707, (received & used)
12.123.25.245 from 12.123.25.245 (12.123.25.245)
Origin IGP, localpref 100, valid, external
Community: 7018:5000
7018 701 3707, (received & used)
12.123.137.124 from 12.123.137.124 (12.123.137.124)
Origin IGP, localpref 100, valid, external
Community: 7018:5000
7018 701 3707, (received & used)
12.123.9.241 from 12.123.9.241 (12.123.9.241)
Origin IGP, localpref 100, valid, external
Community: 7018:5000
7018 701 3707, (received & used)
12.123.5.240 from 12.123.5.240 (12.123.5.240)
Origin IGP, localpref 100, valid, external
Community: 7018:5000
7018 701 3707, (received & used)
12.123.29.249 from 12.123.29.249 (12.123.29.249)
Origin IGP, localpref 100, valid, external
Community: 7018:5000
7018 701 3707, (received & used)
12.123.145.124 from 12.123.145.124 (12.123.145.124)
Origin IGP, localpref 100, valid, external
Community: 7018:5000
7018 701 3707, (received & used)
12.123.37.250 from 12.123.37.250 (12.123.37.250)
Origin IGP, localpref 100, valid, external
Community: 7018:5000
7018 701 3707, (received & used)
12.123.17.244 from 12.123.17.244 (12.123.17.244)
Origin IGP, localpref 100, valid, external
Community: 7018:5000
7018 701 3707, (received & used)
12.123.133.124 from 12.123.133.124 (12.123.133.124)
Origin IGP, localpref 100, valid, external
Community: 7018:5000
7018 701 3707, (received & used)
12.123.45.252 from 12.123.45.252 (12.123.45.252)
Origin IGP, localpref 100, valid, external
Community: 7018:5000
7018 701 3707, (received & used)
12.123.41.250 from 12.123.41.250 (12.123.41.250)
Origin IGP, localpref 100, valid, external
Community: 7018:5000
7018 701 3707, (received & used)
12.123.134.124 from 12.123.134.124 (12.123.134.124)
Origin IGP, localpref 100, valid, external
Community: 7018:5000
7018 701 3707, (received & used)
12.123.33.249 from 12.123.33.249 (12.123.33.249)
Origin IGP, localpref 100, valid, external
Community: 7018:5000
7018 701 3707, (received & used)
12.123.1.236 from 12.123.1.236 (12.123.1.236)
Origin IGP, localpref 100, valid, external, best
Community: 7018:5000
route-server>

 

[KarenMarie]

What is a ******/DST? And where can I find the info?

As far as resetting the modem/gateway...
http://broadband.motorola.com/consumers/products/sbg900/
http://broadband.motorola.com/consumers...SBG900/downloads/SBG900_User_Guide.pdf

And I have not only reset it on the back of the unit, but I power cycled it. I then logged onto 192.168.100.1 and completely reset it to factory defaults. I tried the site, did not work so I redid the EESID, WEP, firewall and etc.

Edit: and thanks for the nice words on my pics and info and etc. I am not the kind of person who will ask for help and then sit back and let the helpers do all the research. I think it is my responsibilty to be fully prepared with everything before asking for help. I soooo appreciate the time ppl, like you and Jack take for me.

 

[spidey07]

jebus, I just checked that netblock.

164.109/16 is digex.

If you're provider has a problem with that then you aren't the only one. Gimme the number for them and I will handle it for you. PM me your source if you wouldn't mind.

Heck, just PM me your IP (I don't need IP, just your provider and maybe your subnet) and I'll take care of it.

 

[spidey07]

I really think this is a problem with your provider, the routing and the fact that you can get to it via a proxy points to a routing problem in their network.

But you really have laid out exactly what is going on. Call your provider and present the info you have presented to them and escalate to tier 3-4. They may even thank you for pointing it out for them.

 

[KarenMarie]

Just PMed you a bunch of info.



not that I understood a word of what you posted above me.... hahaha!!!

 

[JackMDS]

SOHO means Small Office Home Office.

In case of a Router, it means a regular Cable/DSL Router.

Did you try one computer directly on the modem to Rule out Router problems?

Did you try a Static DNS of a 3rd party service?

Example: Verizon (Level3) Nameservers I.P address 4.2.2.1

:sun:

 

[bsobel]

I think the problem is your home router is choking on the .255 address thinking its a broadcast address. Your trace routes simply aren't leaving your house at all. If this was your provider you should at LEAST get your home router in your traceroute.

I'm pretty damm sure this is the problem, can you see if there is updated firmware for your router?

 

[spidey07]

good point. that may very well be the case and i was heading down the wrong direction.

heh, I'm just so used to routers doing what they are supposed to do that I forget the SOHO stuff can tend to not work correctly.

 

[bsobel]

Originally posted by: spidey07
good point. that may very well be the case and i was heading down the wrong direction.

heh, I'm just so used to routers doing what they are supposed to do that I forget the SOHO stuff can tend to not work correctly.

It's such a stupid bug, but sadly not surprising. The 255 in the address got my attention, but her tracerts show the story, nothing leaving her network at all which tells me that gateway is fubard. Unfortunately I did not see a firmware upgrade on the site, so I think Karren will need to call tech support back and file a bug report. I also have a draft letter to the technical contact for the domain suggesting they consider changing the IP (while not their fault, it's still affecting their customers).

Bill

 

[spidey07]

yeah, nothing wrong with the address. I'm used to seeing/using 255 and 0 in any octect so it didn't really jump out at me.

But I think you have it nailed. Karen can confirm by going directly to the modem and bypass the "suspect" piece of gear.

 

[KarenMarie]

Well, I cannot access this site either.

I am now posting this thru a web proxy. There are a few other sites I cannot access as well.

I have hard wired the laptop directly into the modem/gateway. It is one piece of equipment. It is not a separate modem and gateway. it is all in one. While I was hard wired, I reset everything back to factory defaults from from the motorola webpage. I have also unplugged it for a few minutes.

Is there something else I should be doing?

 

[DaiShan]

Originally posted by: KarenMarie
Well, I cannot access this site either.

I am now posting this thru a web proxy. There are a few other sites I cannot access as well.

I have hard wired the laptop directly into the modem/gateway. It is one piece of equipment. It is not a separate modem and gateway. it is all in one. While I was hard wired, I reset everything back to factory defaults from from the motorola webpage. I have also unplugged it for a few minutes.

Is there something else I should be doing?

Just to verify, when you hard wired from the modem into your laptop you still experienced the problem? Additionally, you are saying that you can no longer get to the AT forums without a proxy?

 

[bsobel]

Just to verify, when you hard wired from the modem into your laptop

She can't do that, the modem is built into the gateway...

 

[DaiShan]

Originally posted by: bsobel

Just to verify, when you hard wired from the modem into your laptop

She can't do that, the modem is built into the gateway...

Ah, I completely misread that. OP - Have you asked Comcast to bring you a new modem/gateway? If not, it could help us in locating the problem. When you call, see if they offer any other models that are not integrated like yours.

 

[KarenMarie]

I have a linksys modem upstairs in the closet. I need to get dinner started before the b/f gets home from work, then I will dig it out and fire it up.

BBL.

EDIT: DaiShan, I own this modem/gateway. I do not rent it from Comcast.

 

[KarenMarie]

Ok...

Linksys modem is hooked up and I am connect directly thru it to here.

I also have access to all the sites I could not get to before.

This means it is a problem with the wireless modem/gateway. I wonder if it is reportable it just FUBARed.

Let me call Motorola.