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Cannot access specific well-known websites

N/A

Cannot access specific well-known websites

Hi,

I've recently switched to PlusNet from NTL, and cannot connect to specific sites, including www.microsoft.com & www.ebay.com. (connection timeouts in firefox, no different in other browsers) Other sites are fine and speedy.

DNS lookups for both sites are fine.

I'm using .49 and .50 DNS servers, have a static IP (84.229.x.x) and am on 1MB Premier. I use a linkpoint AG241 modem/router with all the firewall & filtering stuff disabled. I use kerio personal firewall on my desktop but it doesn't make a difference turning it off. I'm also spyware/virus free.

I read several postings about blacklisting, but wouldn't have thought the IP range would be blacklisted from big sites like those.

Thought I'd check here first before contacting PlusNet support...

Any ideas?

Regards,

James Frost
7 REPLIES
N/A

Cannot access specific well-known websites

What happens if you try a tracert to the sites? I'll assume you're on Windows XP:
[list=1]
  • Click Start
  • Click Run
  • Type "cmd"
  • Type "tracert www.microsoft.com" in the black window which appears
  • When this is finished, right click in the window and choose "Mark" from the drop-down
  • Highlight the whole output, and right click once more
  • Paste the output here[/listShocked]
  • N/A

    Cannot access specific well-known websites

    Hi,

    Thanks for the reply. I've done the odd tracert in my time Smiley And my command prompt has a blue background not black Smiley

    Tracing route to lb1.www.ms.akadns.net [207.46.20.30]
    over a maximum of 30 hops:

    1 3 ms 3 ms 3 ms 192.168.1.253
    2 23 ms 25 ms 23 ms lo0-plusnet.ptn-ag1.plus.net [195.166.128.123]
    3 24 ms 26 ms 22 ms ge0-0-0-103.ptn-gw2.plus.net [84.92.3.18]
    4 26 ms 28 ms 31 ms t2a1-ge5-2.uk-lon1.eu.bt.net [166.49.211.9]
    5 26 ms 57 ms 21 ms t2c2-ge5-2.uk-lon1.eu.bt.net [166.49.135.109]
    6 26 ms 25 ms 23 ms t2c1-p4-3.uk-eal.eu.bt.net [166.49.208.109]
    7 98 ms 99 ms 97 ms t2c1-p4-0.us-ash.eu.bt.net [166.49.164.110]
    8 * * * Request timed out.

    etc but occasionally it gets a few more hops than that to

    166-49-151-134.eu.bt.net [166.49.151.134]
    207.46.47.65
    pos6-2.wst-76cb-1b.ntwk.msn.net [207.46.35.97]
    pos1-0.wst-12ix-1b.ntwk.msn.net [207.46.36.214]
    pos1-0.tke-12ix-2b.ntwk.msn.net [207.46.155.13]
    po13.tuk-65ns-mcs-1b.ntwk.msn.net [207.46.224.217]

    It feels as though it could be a more general routing problem but i don't know anyone else experiencing it... (the guy I work with is on plusnet too and he's had no problems)

    Regards,

    James
    Community Veteran
    Posts: 14,469
    Registered: 30-07-2007

    Cannot access specific well-known websites

    Have you rebooted all your equipment: PC, router etc to see if that fixes it.

    Try without any software firewalls running.

    Also try changing your MTU in your router (if you use one) and WIndows.
    N/A

    Cannot access specific well-known websites

    I've tried reboots of all the hardware.

    The MTU on the router is set to "Automatic" - which appears to be 1492 currently. Don't know much about MTU - is it worth tweaking from that?

    James
    Community Veteran
    Posts: 14,469
    Registered: 30-07-2007

    Cannot access specific well-known websites

    Yes, it has solved connection problems for some users previously.

    See
    MTU tweak
    N/A

    Cannot access specific well-known websites

    Thanks for all the replies...

    Turns out it was my problem after all Sad

    I dug out the BT USB modem to check if it wasn't a hardware configuration issue. And it turned out to be just that...

    I'd specifically disabled the access policies and firewall on my linksys AG241 modem/router. It seems that disabling those things has some nasty side effects (like blocking some sites) I reenabled them with the default settings and all is well again.

    Hope that is of some use for anyone else with the same router...

    James
    N/A

    Cannot access specific well-known websites

    Thats annoying. I had exactly the same problem last september and ended up replacing the router. It did seem an strange mode of hardware failiure...