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Topic # 138771 16-Jan-2014 10:55 Send private message

Have a cheap NetComm NB304 non wireless router.  Seems it not just another user in the house will kill the router after trying to load up videos somewhere.  Happens to me also (ie no one can browse etc after that happens).  Rebooting it sorts it again.

Is the router just too rubbish and overheats or something?  Any suggestions?

We do have a number of users in the house.

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  Reply # 968499 16-Jan-2014 21:05 Send private message

How is the file being uploaded?

Torrenting typically locks up cheaper routers by overloading the NAT table.




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For my general guide to extending your wireless network Click Here




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  Reply # 968501 16-Jan-2014 21:10 Send private message

Just uses up all available bandwidth and the router must not know how to recover.




 




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  Reply # 968502 16-Jan-2014 21:19 Send private message

raytaylor: How is the file being uploaded?

Torrenting typically locks up cheaper routers by overloading the NAT table.


Photos/videos to SmugMug.  Also used to happen with my daughter uploading YouTube video on another router, the Genius Orcon one (and same with this one I think).

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  Reply # 968510 16-Jan-2014 21:35 Send private message

Does it come right itself or stay locked up? Was going to say it sounds a bit like Bufferbloat but if it stays locked up then probably not..
You could try out the ICSI Netalyzr tool, see if it identifies anything




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  Reply # 968779 17-Jan-2014 11:35 Send private message

Stays locked up, well at least for say 15 mins, haven't waited any longer.



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  Reply # 969026 17-Jan-2014 17:34 Send private message

Ran that analyser tool and the only thing of note was the uplink buffering interestingly:

Network Access Link Properties + –
Network performance (?): Latency: 210 ms, Loss: 0.5% +
TCP connection setup latency (?): 220ms +
Background measurement of network health (?): no transient outages +
Network bandwidth (?): Upload 900 Kbit/s, Download 6.4 Mbit/s +
Network buffer measurements (?): Uplink 3100 ms, Downlink is good –
We estimate your uplink as having 3100 ms of buffering. This is quite high, and you may experience substantial disruption to your network performance when performing interactive tasks such as web-surfing while simultaneously conducting large uploads. With such a buffer, real-time applications such as games or audio chat can work quite poorly when conducting large uploads at the same time.

We use Maxnet with the Guardian thingy turned on does this affect this or is this just talking about at the router level?



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  Reply # 969039 17-Jan-2014 18:09 Send private message

Have this setting on the router (affects download only do you think?), can't find manual on this router?! they only seem to have quick start guide and spec sheet etc.:

Tried with it off and got much the same result?

Network Access Link Properties + – Network performance (?): Latency: 230 ms, Loss: 0.5% + TCP connection setup latency (?): 210ms + Background measurement of network health (?): no transient outages + Network bandwidth (?): Upload 780 Kbit/s, Download 6.4 Mbit/s + Network buffer measurements (?): Uplink 3800 ms, Downlink 150 ms – We estimate your uplink as having 3800 ms of buffering. This is quite high, and you may experience substantial disruption to your network performance when performing interactive tasks such as web-surfing while simultaneously conducting large uploads. With such a buffer, real-time applications such as games or audio chat can work quite poorly when conducting large uploads at the same time. We estimate your downlink as having 150 ms of buffering. This level may serve well for maximizing speed while minimizing the impact of large transfers on other traffic.



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  Reply # 969043 17-Jan-2014 18:17 Send private message

Found a pretty similar model manual which gives details on this, http://support.netcommwireless.com/product/adsl/nb304n


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  Reply # 969121 17-Jan-2014 21:10 Send private message

If the network performance reading of 220ms indicates a round trip from your network card to your router and back, you almost certainly have a faulty router.  From the sounds of things, the rest of the blurb suggests the same.  Try from another computer to confirm.

I would suggest trying another router and putting it under the same stress that would crash this one to confirm if it is the router itself.  If you get a new one, don't touch D-Link, Thomson, speedtouch...etc, with a barge pole.  The TP-Links are great little routers from the Warehouse, or a second hand Dynalink from TradeMe will do fine.

I personally use Netgear.  I have a Netgear DG834G with custom firmware.  I can juice my line for every megabit it has by adjusting signal to noise ratio and have various bandwidth controls too.  Search "DG834G" in TradeMe.  They are between $20.00 and $60.00.  Here is a V4 for $19.00: NETGEAR DG834G V4

If you are interested later, I'll show you the firmware packages and how they might make your internet experience a little better.  :)

Good luck!





Sometimes what you don't get is a blessing in disguise!



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  Reply # 979487 3-Feb-2014 16:16 Send private message

Thanks for the help DravidDavid, I missed that Netgear auction in the end - nice price and they won't relist it seems.  I used to have Netgear, seemed quite good.

Do you think these are any good? TP-Link TD-W8950ND Currently wehave quite heavy traffic on our LAN at times, say 3x PC wired, XBox 360 wireless, XBox One wired, an iPad, 2 laptops wireless (probably watching YouTube!) + iPhone + another Android & Nokia. 



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  Reply # 979489 3-Feb-2014 16:17 Send private message

...plus a VoIP box....lol seems like a lot of things now I've listed them.

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  Reply # 979505 3-Feb-2014 16:59 Send private message

How many devices there are shouldn't matter a whole lot, it's more "what they are doing".

If anyone in the house is using any P2P software (eg. Torrents) - they should try limiting active connections, say to 200, and see if that helps.

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  Reply # 980126 4-Feb-2014 14:21 Send private message

Sorry I didn't see your reply/test results, yeah that 3 second uplink buffer definitely won't be helping the case, I've run into the same issue before with various routers.

Unfortunately there probably are no settings that will help fix that, best bet will be to replace with something a bit higher powered. Only disclaimer there is that I don't know how the Maxnet Guardian service works, so it is possible that could impact it..

The reviews on Amazon for that TP-Link seem OK, did a search for "TD-W8950N buffer bloat" and found nothing either which is encouraging.

If you're wanting to do anything fancy in the future, it doesn't look to support third-party custom firmware though, (i.e. DD-WRT), but probably doesn't matter

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  Reply # 980131 4-Feb-2014 14:26 Send private message

Personally I use a DrayTek 130 as my modem, in full bridge mode to an Apple Airport Extreme to do the routing. I think my next router may be a Fritz!Box so I can do away with my separate VoIP device (just use the built in DECT of the Fritz!Box), but they are pretty expensive.. hoping to pick one up from work



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  Reply # 980138 4-Feb-2014 14:47 Send private message

Thanks for the help everyone.

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