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Odd site connection problem - any ideas?

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eastender

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Nov 29, 2009, 12:16:00 PM11/29/09
to
A friend is having problems with the Connexions site as follows - any
ideas? The sublinks on the site work fine for me. She is using a Macbook
running Leopard.

Thx

E.

------------------

Latest Safari, latest Firefox. Latest Chrome. Latest everything.
Parental controls NOT enabled for the account I am using...so far as I
can see
I have Allow All Incoming Connections selected on Firewall]

So...basically I can access
this main page http://www.connexions-direct.com/

BUT I cannot go beyond there. So If I click on this
link... http://www.connexions-direct.com/index.cfm?go=Relationships
NOTHING HAPPENS

or this link
http://www.connexions-direct.com/index.cfm?go=Yourrights

NOTHING HAPPENS (i.e. the screen goes white for aaaaages and nothing
happens) and when I click refresh, nothing happens.

BUT when I access them on the Windows notebook I can see them so I know
the links are active. I seem to be able to access all other sites.

Mark Bestley

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Nov 29, 2009, 12:45:07 PM11/29/09
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eastender <nos...@nospam.com> wrote:

Seems OK here on Snow Leopard and Firefox 3.5.3 even with NoScript. I
accept all cookies for the same site.

--
Mark

T i m

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Nov 29, 2009, 12:47:51 PM11/29/09
to
On Sun, 29 Nov 2009 17:45:07 GMT, news{@bestley.co.uk (Mark Bestley)
wrote:


>> http://www.connexions-direct.com/index.cfm?go=Yourrights
>>
>> NOTHING HAPPENS (i.e. the screen goes white for aaaaages and nothing
>> happens) and when I click refresh, nothing happens.
>>
>> BUT when I access them on the Windows notebook I can see them so I know
>> the links are active. I seem to be able to access all other sites.
>
>Seems OK here on Snow Leopard and Firefox 3.5.3 even with NoScript. I
>accept all cookies for the same site.


Same here on 10.5 with latest TB and Safari.

T i m

Ian McCall

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Nov 29, 2009, 2:29:52 PM11/29/09
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On 2009-11-29 17:16:00 +0000, eastender <nos...@nospam.com> said:

>
> Latest Safari, latest Firefox. Latest Chrome. Latest everything.

So given that and the fact that others are able to get there fine (I
can too). this might be a networking thing. Are you using the same ISP,
the same DNS settings etc.?

Could also be adverts perhaps? Perhaps we're getting a different set of
contextual ads to yourself and you've hit one that isn't Mac compatible?

Cheers,
Ian

eastender

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Nov 29, 2009, 2:36:48 PM11/29/09
to
In article <7ng0dgF...@mid.individual.net>,
Ian McCall <i...@eruvia.org> wrote:

It's a colleague and she's up north - I'll ask what ISP etc she's on. It
is frustrating to get problems that no-one else can replicate.

E.

eastender

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Nov 29, 2009, 3:07:16 PM11/29/09
to
In article <nospam-5675A8....@news.astraweb.com>,
eastender <nos...@nospam.com> wrote:

Ok - she says: 'We are on BT Broadband here with a Zyxel router'.

I presume the Windows machine works via this router with the URLs that
won't work on the Macbook, so this ought to be something simple with the
comms between the router and Macbook?

E.

Ian McCall

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Nov 29, 2009, 3:19:12 PM11/29/09
to
On 2009-11-29 20:07:16 +0000, eastender <nos...@nospam.com> said:

> I presume the Windows machine works via this router with the URLs that
> won't work on the Macbook, so this ought to be something simple with the
> comms between the router and Macbook?

I would have thought so. Alternative is the idea that an advert might
be causing problems on the Macs that it's not causing on Windows, but
that's very hard to tell since contextual ads might be different for me
than for her.


Cheers,
Ian

Duncan Kennedy

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Nov 29, 2009, 4:42:08 PM11/29/09
to
In message <nospam-5870E7....@news.astraweb.com>, eastender
<nos...@nospam.com> writes
FWIW I've just tried it on my Mac Mini with Safari 4.0.4 and OSX 10.5
with BT Broadband and the BT HH2 router and everything is OK.

--
Duncan K
Downtown Dalgety Bay

eastender

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Nov 29, 2009, 5:55:08 PM11/29/09
to
In article <7ng3a0F...@mid.individual.net>,

Ian McCall <i...@eruvia.org> wrote:
>
> I would have thought so. Alternative is the idea that an advert might
> be causing problems on the Macs that it's not causing on Windows, but
> that's very hard to tell since contextual ads might be different for me
> than for her.

hmmm. Well latest report from her is baffling - anyone else come across
this? Is this a h/w fault with a Macbook?

'My partner discovered that by trying to load the pages and shutting the
laptop lid as soon as you get a blank page, the page appears!!! It's
mightily inconvenient but better than nothing. What on EARTH does it
mean do you think? Like it's interrupting whatever the problem is...'

E.

Ian McCall

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Nov 29, 2009, 6:51:51 PM11/29/09
to
On 2009-11-29 22:55:08 +0000, eastender <nos...@nospam.com> said:

> In article <7ng3a0F...@mid.individual.net>,
> Ian McCall <i...@eruvia.org> wrote:
>>
>> I would have thought so. Alternative is the idea that an advert might
>> be causing problems on the Macs that it's not causing on Windows, but
>> that's very hard to tell since contextual ads might be different for me
>> than for her.
>
> hmmm. Well latest report from her is baffling - anyone else come across

> this? Is this a h/w fault with a Macbook?...Like it's interrupting
> whatever the problem is...'

Yep - exactly like that in fact. Suspicion has to be it's trying to
make a network connection, probably due to an ad though I can't confirm
that of course, and that shutting the lid interrupts the connection
allowing the page to render as you would expect.

My own guess is that there's a routing hassle involved somewhere, but
as I say it could be an ad that's not Mac compatible too. Not terribly
convincing I know, but it's the best set of things that I can think of
that would explain the circumstance.


Cheers,
Ian

Peter Ceresole

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Nov 30, 2009, 12:24:33 AM11/30/09
to
Ian McCall <i...@eruvia.org> wrote:

> My own guess is that there's a routing hassle involved somewhere, but
> as I say it could be an ad that's not Mac compatible too. Not terribly
> convincing I know, but it's the best set of things that I can think of
> that would explain the circumstance.

If it was a Mac-unfriendly advert, then surely others would see a
problem? As it is a number of people here have reported that they can
connect to the site and drill down- I have, and it works without any
hesitation, with an iG5 running 10.4.11. Others have done it with setups
more similar to what we know of the person having the trouble.

I agree that non-availability of some page element might fit the bill,
but the fact that other Mac users have no trouble and that a Windows
machine can get through does seem to point to some other cause. But if
other sites work properly (we don't know that but we've not been told)
then if doesn't look like a settings problem. I know someone has asked
already, but the browsers are set to accept cookies, aren't they? As far
as I can remember, connecting to the iPlayer requires cookies. That
might be worth trying.

If interrupting the connection seems to work round the problem, what
happens if the user clicks on the 'stop loading' button? That should
interrupt the process without shutting down the Mac.
--
Peter

zoara

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Nov 30, 2009, 4:45:42 AM11/30/09
to

Could it be that DNS is misconfigured? So when the lid is re-opened it
hits the DNS servers specified in one place, because it hasn't yet
connected "enough" to find them in the other place (which is causing the
blank page).

Yeah, that sounds vague; mainly because I don't really have any idea
what I am talking about. But it's a thought, anyway.

-zoara-


--
email: nettid1 at fastmail dot fm

Ric

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Nov 30, 2009, 5:39:12 AM11/30/09
to
On Nov 29, 5:16 pm, eastender <nos...@nospam.com> wrote:
> A friend is having problems with the Connexions site as follows - any
> ideas? The sublinks on the site work fine for me. She is using a Macbook
> running Leopard.
>
> Thx
>
> E.
>
> ------------------
>
> Latest Safari, latest Firefox. Latest Chrome. Latest everything.
> Parental controls NOT enabled for the account I am using...so far as I
> can see
> I have Allow All Incoming Connections selected on Firewall]
>
> So...basically I can access
> this main pagehttp://www.connexions-direct.com/

>
> BUT I cannot go beyond there. So If I click on this
> link...http://www.connexions-direct.com/index.cfm?go=Relationships
> NOTHING HAPPENS
>
> or this linkhttp://www.connexions-direct.com/index.cfm?go=Yourrights

>
> NOTHING HAPPENS (i.e. the screen goes white for aaaaages and nothing
> happens) and when I click refresh, nothing happens.
>
> BUT when I access them on the Windows notebook I can see them so I know
> the links are active. I seem to be able to access all other sites.

Probably DNS, or MTU settings.
Try the Open DNS server of 208.67.220.220 and see if it helps - I use
these permanently as Sky's DNS is absolute rubbish.

Ric

T i m

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Nov 30, 2009, 5:49:38 AM11/30/09
to
On Mon, 30 Nov 2009 02:39:12 -0800 (PST), Ric <infob...@gmail.com>
wrote:


>Probably DNS, or MTU settings.

I'd (now) also go with the MTU.

T i m

eastender

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Nov 30, 2009, 6:19:05 AM11/30/09
to
In article
<7cde9a8d-c1d6-443a...@a21g2000yqc.googlegroups.com>,
Ric <infob...@gmail.com> wrote:


> Probably DNS, or MTU settings.
> Try the Open DNS server of 208.67.220.220 and see if it helps - I use
> these permanently as Sky's DNS is absolute rubbish.


Thanks - this seems likely to me too. She's taken the Macbook to a
coffee shop and it's ok.

I've advised her to try an Ethernet cable to connect to the router too
and not wireless.

E.

David Sankey

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Nov 30, 2009, 6:39:34 AM11/30/09
to
In article <1o87h5dr5rhuhr78q...@4ax.com>,

Now?

I don't recall any issues with MTU path discovery within living memory?

Kind regards,

Dave

T i m

unread,
Nov 30, 2009, 7:11:19 AM11/30/09
to
On Mon, 30 Nov 2009 11:39:34 +0000, David Sankey
<David....@stfc.ac.uk> wrote:

>In article <1o87h5dr5rhuhr78q...@4ax.com>,
> T i m <ne...@spaced.me.uk> wrote:
>
>> On Mon, 30 Nov 2009 02:39:12 -0800 (PST), Ric <infob...@gmail.com>
>> wrote:
>>
>>
>> >Probably DNS, or MTU settings.
>>
>> I'd (now) also go with the MTU.
>
>Now?

As in as the thread has progressed.


>
>I don't recall any issues with MTU path discovery within living memory?

Maybe 1) you aren't as old as me or 2) haven't actually dealt with 2
cases with very similar symptoms which were immediately resolved by
reducing the MTU size. (One was accessing the Congestion charging
website where it failed at about the 4th level).

Cheers, T i m

Peter Ceresole

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Nov 30, 2009, 7:27:55 AM11/30/09
to
T i m <ne...@spaced.me.uk> wrote:

> Maybe 1) you aren't as old as me or 2) haven't actually dealt with 2
> cases with very similar symptoms which were immediately resolved by
> reducing the MTU size. (One was accessing the Congestion charging
> website where it failed at about the 4th level).

But Macs have auto-MTU setting, so MTU sounds very unlikely.
--
Peter

T i m

unread,
Nov 30, 2009, 7:46:22 AM11/30/09
to

But whilst the routers should they don't always and I *have* found it
can have an impact. I'm not putting any money on this being the issue
but until proven or demonstrated otherwise? ;-)

Cheers, T i m

Duncan Kennedy

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Nov 30, 2009, 9:51:50 AM11/30/09
to
In message <nospam-B744EB....@news.virginmedia.com>,
eastender <nos...@nospam.com> writes
That may be well worth a try. I have had strange problems when on a
very slow connection - admittedly with WinXP laptops (the MacBook Pro is
still in the box).

I certainly get fairly similar results on mobile broadband in weak
signal areas but I also know that BT can drop connection speeds
dramatically in the evenings - after about 5pm. I usually get 5.5meg
and above connections but in the evening I've seen as low as 400k - and
that's on an ethernet cable. As somebody said, shutting the lid may
gibe time to render - even clear some memory from earlier activities
that haven't handed it back??

David Sankey

unread,
Nov 30, 2009, 9:59:16 AM11/30/09
to
In article <lad7h5thvj1dgf95q...@4ax.com>,

T i m <ne...@spaced.me.uk> wrote:

> On Mon, 30 Nov 2009 11:39:34 +0000, David Sankey
> <David....@stfc.ac.uk> wrote:
>
> >In article <1o87h5dr5rhuhr78q...@4ax.com>,
> > T i m <ne...@spaced.me.uk> wrote:
> >
> >> On Mon, 30 Nov 2009 02:39:12 -0800 (PST), Ric <infob...@gmail.com>
> >> wrote:
> >>
> >>
> >> >Probably DNS, or MTU settings.
> >>
> >> I'd (now) also go with the MTU.
> >
> >Now?
>
> As in as the thread has progressed.
> >
> >I don't recall any issues with MTU path discovery within living memory?
>
> Maybe 1) you aren't as old as me or 2) haven't actually dealt with 2
> cases with very similar symptoms which were immediately resolved by
> reducing the MTU size. (One was accessing the Congestion charging
> website where it failed at about the 4th level).

Yes, but were you starting from here? Or rather Mac OSX?

I would have said it was Mac OS 8 or earlier when there was an issue,
but there have been more recent outbreaks with XP and particularly
shoddy routers.

Kind regards,

Dave

T i m

unread,
Nov 30, 2009, 10:09:55 AM11/30/09
to
On Mon, 30 Nov 2009 14:59:16 +0000, David Sankey
<David....@stfc.ac.uk> wrote:


>> >
>> >I don't recall any issues with MTU path discovery within living memory?
>>
>> Maybe 1) you aren't as old as me or 2) haven't actually dealt with 2
>> cases with very similar symptoms which were immediately resolved by
>> reducing the MTU size. (One was accessing the Congestion charging
>> website where it failed at about the 4th level).
>
>Yes, but were you starting from here? Or rather Mac OSX?

Sorry, confused. ;-(


>
>I would have said it was Mac OS 8 or earlier when there was an issue,
>but there have been more recent outbreaks with XP and particularly
>shoddy routers.

Someone had a bizarre fault scenario, someone suggested MTU, I agreed
(given the bizarreness) and from practical experience resolving
similar problems by setting the MTU lower, thought it might be worth a
mention, could be way off, mileage may vary etc. ;-)

Cheers,

T i m

Ric

unread,
Dec 1, 2009, 10:22:22 AM12/1/09
to
On Nov 30, 12:46 pm, T i m <n...@spaced.me.uk> wrote:
> On Mon, 30 Nov 2009 12:27:55 +0000, pe...@cara.demon.co.uk (Peter
>
> Ceresole) wrote:
> >T i m <n...@spaced.me.uk> wrote:
>
> >> Maybe 1) you aren't as old as me or 2) haven't actually dealt with 2
> >> cases with very similar symptoms which were immediately resolved by
> >> reducing the MTU size. (One was accessing the Congestion charging
> >> website where it failed at about the 4th level).
>
> >But Macs have auto-MTU setting, so MTU sounds very unlikely.
>
> But whilst the routers should they don't always and I *have* found it
> can have an impact. I'm not putting any money on this being the issue
> but until proven or demonstrated otherwise? ;-)
>
> Cheers, T i m

Same here. A case of my favourite quote "In theory, theory and
practice are the same. In practice they are different."
Regardless of whether macs are meant to do auto MTU tuning, I *have*
found cases where I've had to set it manually on the router. It takes
30 seconds to do, anyway.

Paul Grayson

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Dec 1, 2009, 11:12:40 AM12/1/09
to
On Nov 30, 3:09 pm, T i m <n...@spaced.me.uk> wrote:

> Someone had a bizarre fault scenario, someone suggested MTU, I agreed
> (given the bizarreness) and from practical experience resolving
> similar problems by setting the MTU lower, thought it might be worth a
> mention, could be way off, mileage may vary etc. ;-)

I've also seen problems with a router's DoS protection getting
confused, causing incoming responses to get dropped, but only if
originating from some versions of Mac OS X. In my case it was most
noticable when attempting to view the iTunes store - the problems
didn't occur when viewing exactly the same content from within iTunes
on a PC running XP.

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