Re: Can't access broadband
- From: Baloo <baloo@xxxxxxxxx>
- Date: Tue, 12 Dec 2006 17:55:53 -0800
Hogweed wrote:
Find an IP address you can ping and get a response. When your connection
isn't working very well, ping it and look at the responses, if it varies
from when it's not bad then it could point to a connection issue.
Yes, that happens ? sometimes I can ping certain sites and get one or two
packets back ? sometimes not. Interestingly, my ISP (spit) always start
their response by getting me to ping a URL rather than an IP ? usually
www.bbc.co.uk and it responds. However, when I try to ping other sites,
like www.hotmail.com ? or even the ISPs own home address
www.blueyonder.co.uk, they don?t respond.
www.hotmail.com and www.blueyonder.co.uk both violate the RFCs for TCP/IP
implementation by not responding to ICMP Echo Requests. Traceroute and
ping will always fail against these sites because of this, which
complicates troubleshooting when you're only having problems getting to
sites that are broken by design.
I don?t know enough about WANs
to speculate further, but somebody said they might do this to avoid denial
of service attacks or something... for me, it just makes things more
complicated...
That is often the case, misguided as it may be... instead of making it
harder to troubleshoot and violating the RFCs, they should be allowing or
denying based on IP ranges. IE, if they get attacked, everyone from that
ISP loses out. If big sites handled network abuse this way, odds are the
net would be a safer place for everyone, but these guys don't want to think
that far ahead.
OK, so that rules out dodgy plugins for IE7, and the occassional problems
I've seen reported with OE when IE7 is installed (of which I've
experienced non myself). "Your POP server hasn't responded" infers that
the DNS lookup worked, but no response was received - so points to a
connection issue.
It really is pointing to a connection issue, isn?t it.
I think I saw upthread that when you connect your other computers in the
same manner, they work. Sounds like a Windows problem isolated on one
machine to me.
When you removed the router, how were you connected? Are you using a
router inline with a modem?
It?s an ethernet cable from my network card to the corresponding port on
my cable modem. The modem has been rebooted several times, and the ISP
also claims to have downloaded the latest software to it.
Could still be a DNS caching issue on a proxy.
Beyond my capacity to understand at present, I?m afraid! Any way I could
test this easily?
I'm not sure I saw anywhere in this thread where a proxy is involved, I
suspect that might have been thrown in as a "blind helping the deaf"
moment.
--
Posted via a free Usenet account from http://www.teranews.com
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- References:
- Re: Can't access broadband
- From: Daniel Crichton
- Re: Can't access broadband
- From: Daniel Crichton
- Re: Can't access broadband
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