On Mon, 11 Feb 2008 23:59:41 +0100, Brainiac wrote:
>On 2008-02-10 18:18:42 +0100, Jeff Liebermann <jeffl@cruzio.com> said:
>
>> Brainiac hath wroth:
>>
>>> I use a MacBook Pro running 10.4.11, and at home we use a modem (adsl)
>>> and and a Netgear WPN824 wireless router. Everything works just fine.
>>
>> Which hardware version of the WPN824? v1 v2 or v3? They're all very
>> different inside.
>It's v1.
I had to upgrade the firmware on one of those just to get it to work
reliably. Check the firmware version.
>> Duz it crash with other forms of streaming video?
>Nope
Just flash? Weird.... Usually router firmware goofs have problems
with all type so streaming video.
>> Have you done a download speed test with your ISP? Is it close to the
>> rated download speed, or is it noticably slower? That will show if
>> there is any packet loss, congestion, or DSL problems.
>No that's not the problem
Ok, I'll assume that your ISP is wonderful and not throttling anything
by source or type of service. Please not that this is your problem,
not mine. I'm trying to help, but am limited to offering suggestions.
I think you'll find it more useful to test, and then judge, rather
than the reverse order.
>> Sure there is a way. Diagnosis by substitution:
>> 1. Did you try it with a different wireless laptop or computer?
>> 2. Did you try it with a direct ethernet wired connection?
>> 3. Can you borrow a different wireless router and see if that
>> magically fixes the problem?
>> 4. If it screws up with an ethernet connection, did you try plugging
>> your MacBook directly into the modem, eliminating the Netgear router
>> completely?
>As I said the problem isn't there when I use a wired connection. I
>haven't tried a different router.
That's number 2 on my list of things to try. What about the other 3
things to try? Some might be a bit awkward but all are worth trying.
I like to fix such things by substitution. That means a different
laptop, different connection type, different router, and possibly a
different location. For example, have you tried viewing Flash videos
using a neighbors connection or coffee shop hot spot? If that also
fails, it's your laptop. If it works, then it's probably your router.
>>> And using the same reasoning, it can't
>>> really be a Flash or Leopard issue either. But on the other hand the
>>> issue only affects the new MacBook, and the only real difference
>>> between this and the MBP is Leopard...
>>
>> What do you mean by "only affects the new MacBook"? What other
>> laptops or computers have you tried, how were they connected, and what
>> were the results?
>
>Again, please read the post!
I did. There are apparently other computers available. Do they do
the same thing? If NOT, then it's not the router. If the do, then
it's probably the router.
>> <http://kbserver.netgear.com/products/wpn824.asp>
>
>Thanks, I will try this.
Firmware update is probably the culprit.
>Do you have any idea what specifically can
>cause a router to hang by loading embedded flash videos? Seems pretty
>weird to me. Anyway, thanks for advice!
I have some guesses, but nothing specific. I usually sniff the
traffic to see what's being sent. If I see jumbo packets, I generally
look to see if the router or the computers IP stack is having a
problem dealing with them. It's unlikely with UDP streaming protocols
like Flash, but it's possible. Usually, when this happens, almost any
streaming protocol will hang the router. There are also buffer
overflow issues, flow control, semaphores, and similar programming
issues that I barely understand.
Hanging a router is easy enough. Try some of these and see what
happens:
<http://www.pcflank.com/exploits.htm>
--
# Jeff Liebermann 150 Felker St #D Santa Cruz CA 95060
# 831-336-2558
jeffl@comix.santa-cruz.ca.us
#
http://802.11junk.com jeffl@cruzio.com
#
http://www.LearnByDestroying.com AE6KS
Strange router problem 
Linear Mode
