[Durham] Netgear DG834

[Ian McKeag]

Thank you all for your replies.

I can download each page with

	wget --user --password <URL>

but since its cgi it does'nt get me very far.

$ifconfig eth0
eth0      Link encap:Ethernet  HWaddr 00:1f:d0:0a:93:70
           inet addr:192.168.0.3  Bcast:192.168.0.255  Mask:255.255.255.0
           inet6 addr: fe80::21f:d0ff:fe0a:9370/64 Scope:Link
           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
           RX packets:1535201 errors:0 dropped:0 overruns:0 frame:0
           TX packets:960589 errors:0 dropped:0 overruns:0 carrier:0
           collisions:0 txqueuelen:1000
           RX bytes:2131907124 (1.9 GiB)  TX bytes:85923219 (81.9 MiB)
           Interrupt:43 Base address:0xa000

MTU is set to 1500

I feel that since access from the R-pi suggests that the problem is in 
the desktop system.  I have experienced exactly this before also with 
Wheezy.  I was unable to diagnose then either. A drastic and defeatist 
full system re-install did cure it but I feel very insecure not knowing 
the cause.

Regards,
Ian.



On 22/08/13 13:15, Richard Mortimer wrote:
> Hi,
>
> On 22/08/2013 11:56, Ian McKeag wrote:
>> Hello All,
>>
>> When I log into my DG834 (no wifi) router via the LAN address the login
>> is successful but only part of the admin page is displayed.  The frame
>> and background colours are painted and the left menus is present but
>> incomplete; the remaining boxes are blank; the rightmost column is
>> absent. The page never loads completely; the exact point where it hangs
>> varies but never beyond the end of the menu.
>>
>> This behaviour is consistent with all browsers including konqueror.
>>
>> The bowser status bar reads "Transfer data from 192.168....." and the
>> cursor shows busy.  Mouse over displayed menu items shows the target URL
>> in the status bar.
>>
> When I run into this type of problem its normally due to an MTU (Maximum
> Transfer Unit) size problem on a network device somewhere.
>
> In your case there are just two devices the DG834 and the affected PC so
> I'd suspect that the affected PC has its MTU set too low.
>
> Use the ifconfig command to list the current MTU
>
> laptop at duncow:~/$ ifconfig eth0
> eth0      Link encap:Ethernet  HWaddr 00:21:9b:6e:bf:6f
>            inet addr:192.168.1.106  Bcast:192.168.1.255  Mask:255.255.255.0
>            UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>            RX packets:717893 errors:0 dropped:0 overruns:0 frame:0
>            TX packets:640735 errors:0 dropped:0 overruns:0 carrier:0
>            collisions:0 txqueuelen:1000
>            RX bytes:126384910 (126.3 MB)  TX bytes:47282904 (47.2 MB)
>            Interrupt:16
>
> The normal value for ethernet is 1500 so if it is lower than that try
> setting the MTU to 1500.
>
> sudo ifconfig eth0 mtu 1500
>
> If that fixes it then you need to determine why the MTU is set lower.
> The normal reason for changing MTU is to fixup problematic broadband
> providers routes but that should really be done in the DG834 itself not
> on the LAN. I know that DG834 does have a setting for that.
>
> Regards
>
> Richard
>
>