Re: Extraordinary delay in accessing web-site

[Timothy Murphy]

Ed Greshko wrote:

>  In doing some googling on your device, it seems others have
> encountered
>  the same issue with some reporting success after altering the MTU.
>  
>  I suppose I would try changes there first.  Posts suggest trying 1400. 
I had actually tried changing the MTU, with
	sudo ifconfig wlan0 mtu 1400 up
It didn't solve the problem,
but it did alter the packets I got according to wireshark.
In fact I would have thought it was working from wireshark,
but the image still doesn't appear.
	
>  If possible, I would check the network devices at the remote end to
> see
>  what they are set to.  Normally, the default is 1500. 
Yes, both WiFi and ethernet have MTU set to 1500 on the remote server.

>  Additionally, and this is a long time ago, I had similar network
> issues
>  with a device and it was necessary to turn off tcp_window_scaling in the
>  kernel. 
Again, I had actually set 
	net.ipv4.tcp_window_scaling=0
in /etc/sysctl.conf (and re-booted the laptop).
I too had a problem a couple of years ago which I solved in this way.

I'm going to install wireshark on my local CentOS-6.4 server, if I can,
and see how the packets from the camera differ,
as it works perfectly on the server.




-- 
Timothy Murphy  
e-mail: gayleard /at/ eircom.net
tel: [phone]
s-mail: School of Mathematics, Trinity College Dublin