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Just one web site doesn't respond...

Discussion in 'Cisco/Linksys Wireless Routers' started by Tatiana, Sep 12, 2017.

  1. Tatiana

    Tatiana New Member Member

    Hello to all!
    I hope I have simple question and can get some help there... There is one particular web site what I'm using just about daily and it has to do with nature of my business...
    Some time ago I started to have problems with it. Long log in time, web site is not responding etc... I had no issues to log in just with my modem. Therefore we blamed the router. Currently I'm on my router #3... What is Linksys.
    At beginning when we installed this one everything worked, but soon after it lost connection with web site of my interest us well. (Hint - there is possibility of power going off unexpectedly).
    I can access named web site when I plug my PC to the modem. No router.
    I can access it, if I'm using my cell phone data plan (WiFi has to be off, if I'm at home).
    Withing home Network I tried 6 devices (two phones, laptop, two PCs, tablet ). Various browsers. Two different OS.
    It makes NO difference what I use. Neither one will connect to that particular site.
    Network diagnostic tool says "nothing is wrong with network, but web site is not responding".
    I tried to edit Firewall setting on my router one by one and it didn't change a thing either...
    I'm back where I was.
    Suggestions?
    Thank You in advance!
    T.
     
  2. Sean B.

    Sean B. LI Guru Member

    Have you tried rebooting the router?
     
  3. Tatiana

    Tatiana New Member Member

  4. Sean B.

    Sean B. LI Guru Member

    When everything is acting normal and you're able to access that website, on a Windows or Linux machine run the command "nslookup www.the-website-that-gives-you-problems.com" which will return the IP address of the website. Save that in a txt file or something of the sort for later, in case DNS doesn't work when the issue occurs. Then, when you're unable to connect to the website by using http://www.the-website-name.com, try connecting to the websites IP instead.. IE: http://5.5.5.5 . See if it gives any differing results.
     
  5. Tatiana

    Tatiana New Member Member

    Nothing works normal, but here is all information on what site etc... and I tried putting IP instead of URL. Still no connection with server. Look to me after they made it mobile user friendly, something is changed. But what? I have no idea.
    If it helps anyhow... I think router started acting up after we had power outage.. But after that I reset it... and rebut it... and turned it off for a while... and went over all security settings... and nothing.
    Infodog doesn't work, everything else does. I feel dumb and totally out of ideas.

    DNS ReportHost Type Class TTL Extra
    infodog.com A IN 86400 ip: 207.235.53.219
    infodog.com A IN 86400 ip: 207.235.53.210
    infodog.com NS IN 86400 target: ns2.firelan.net
    infodog.com NS IN 86400 target: ns1.firelan.net
    infodog.com SOA IN 86400 mname: ns1.firelan.net
    rname: dnsadmin.firelan.net
    serial: 86
    refresh: 10800
    retry: 1800
    expire: 604800
    minimum-ttl: 86400
    infodog.com MX IN 86400 pri: 20
    target: smtp.infodog.com
    infodog.com MX IN 86400 pri: 30
    target: mx2.mail.twtelecom.net
    infodog.com MX IN 86400 pri: 10
    target: mxs.firelan.net

    IP Address Information
    Server IP
    207.235.53.210
    Server Location
    Greensboro,NC,United States
    ISP
    Time Warner Telecom
     
  6. Sean B.

    Sean B. LI Guru Member

    Run a traceroute to infodog.com.. "tracert infodog.com" .. post the results.
     
  7. Tatiana

    Tatiana New Member Member

  8. Sean B.

    Sean B. LI Guru Member

    The issue is not with your router or network/settings. The route between you and the web server has been disrupted for whatever reason. Nothing within your ability or control to fix. If it's an important sight for you then your best, if not only, option is to call your ISP and see if they're willing/able to help.

    **EDIT** It appears that this link may be one your ISP owns. A quick check of TW Telecom shows they were aquired by Level 3 Communications in 2014. I'd suggest calling your ISP and tell them your issue, and provide that traceroute for them if needed.
     
  9. Tatiana

    Tatiana New Member Member

    It would make great sense, IF I wouldn't be able to access the same site if I take router out of the loop and just plug either of my PCs strait to the modem... Am I right?.. Or am I wrong?

    I'm pretty sure if I contact their IT department they will start from their favorite: unplug the router... Is it working now? Yes? BINGO, it is the router, we are done with You.
    This is usually how it goes.
    But I may try to contact them... unless You have other suggestions.
    Thank You anyway... I'm not a professional by any mean, but I know a bit... and normally I try all I can before I ask somebody about help, but just like You mentioned I have something here what is totally out of my control. :-(
     
  10. Sean B.

    Sean B. LI Guru Member

    It's pretty clear by that traceroute that the packet leaves your router, makes it through about 6 other routers then goes MIA. It would be worthwhile for you to plug a computer into the modem itself so the website works as you say, then do a nslookup and traceroute from the computer for comparison.
     
  11. Sean B.

    Sean B. LI Guru Member

  12. Tatiana

    Tatiana New Member Member

    Thank You, Sean! Tried http://207.235.53.219 with the router. NOP.
    Could not connect to remote server

    You tried to access the address http://207.235.53.219/, which is currently unavailable. Please make sure that the web address (URL) is correctly spelled and punctuated, then try reloading the page.
    Blah-blah-blah.....

    Have to go now.
    Will try traceroute w modem only this evening.
    I'm positive it will be something different.
    Thanks!
     
  13. Tatiana

    Tatiana New Member Member

    [​IMG]
    OK... Sorry for the delay. Unplugged router, went with modem only. Look like site is loading, however, here is report... Accordantly to what I see it shouldn't even work... but it does. You still think I should contact ISP, right ? Thank You! T.
     
  14. Sean B.

    Sean B. LI Guru Member

    Look at the IP address for infodog in your first trace route and then your second. Trying to access the website by IP doesn't work because the website expects to see the full domain name as the requested URI otherwise it denies the connection. For some reason your router is resolving infodog.com to the .210 IP, while a computer connected straight to your Modem is resolving it to the .219 IP. I assume then that your router is configured to be the DNS server for your LAN. In which case I would suggest trying this:

    In the routers web interface goto Advanced->DHCP/dns and add this line to the custom config box..

    Code:
    address=/infodog.com/207.235.53.219
    The click save. Make sure to reboot your router and all client computers so they clear their DNS cache. Then try accessing the webpage again, see if anything has changed.

    **NOTE** The traceroutes could be failing due to the ICMP echos being filtered by a router down the line. But they do show that the packets leave your LAN, only difference being the destination IP's. Quite possible the .210 IP is not working for their website ( on their end )... so forcing DNS on your router to always resolve to the .219 IP may fix it. Simple to test.
     
    Last edited: Sep 22, 2017 at 8:20 PM

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