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[kitz]

Yep - without actually sitting and doing the overheads calculation I  thought you may be nearing the limits for your synch.

[jid]

Excellent

Noticed this though: RS Correctable Errors (FEC i imagine) :    98,373,975

Connection up about 9hours now...

[kitz]

Yes

[jid]

And everything was going so well

Here was the last graph, at which point I couldn't load any pages and FEC errors were in their billions!


The SNR only went as low as 7.9dB as well, I would have thought it would have been fine there?

Mind you perhaps the 6656kbps sync was too much for the SNR Margin to handle?

[kitz]

>> The SNR only went as low as 7.9dB as well.

 

Possibly down to the way certain routers load the frequency bins.. Some routers may give more stable results at certain levels, yet others are able to hold onto a line at much lower frequencies than others.

[jid]

>> The SNR only went as low as 7.9dB as well.

 

Possibly down to the way certain routers load the frequency bins.. Some routers may give more stable results at certain levels, yet others are able to hold onto a line at much lower frequencies than others.

So are the gaps interference, so I guess I can't really do much with them So is 7.9dB too low then?

Well that's all I need! I really need to upgrade the Firmware as it has a new Broadcom firmware in it. Something to do tomorrow!

Funny, its 13dB now!

So what do I need to do now, keep the sync down a bit more is it? I have it at 5760 but will try to get to 6100 or 6200 and give that a go tomorrow.

[jid]

Well I though I would see if I could get it sync at what i may have been getting before upgrading. I was getting 5.1meg before going LLU (maybe that noise causing issue) as I haven't had 6.5meg since December 2007!

I have now managed to sync at 6496kbps and throughput is 5593kbps.

SNR has been 11.9dB to 12.1dB since I came in so that is a plus *jid crosses fingers to hope it continues!*

IN 8hours the line has made 313 CRC errors and 2million odd FEC errors so not bad considering (I hope!)

I understand that fluctuation in the evening is normal due to more interference etc, however how did the connection loose the world to work at 7.9dB? Must be those gaps which I fear started up in December 07

Edit @ 18:23, added graph:-

[jid]

DMT is showing no errors in the past hour so thats cracking at 10.9dB - 11.1db

I have requested to have Interleave off to do some experimenting, does it effect speed of loading webpages as I have read?

I suppose I could always have it switched back on if need be, and I suppose with LLU it can be done in a resync?

[kitz]

You wont notice the effect of interleaving during surfing.. or in fact general internet use.
Its only for time sensitive applications such as gaming where people normally notice.

However... if you have lots and lots of FECs and then turn off interleaving then theres a strong possibility that those FECs will then become CRCs.
Too many CRCs will slow your traffic down because packets have to be re-requested.

[jid]

Ok, well they have told me that they can't do it in the Forums so it is still on. I don't game so thats fine and I will leave it on.


  I suppose this is normal fluctuation behavior?

[jid]

Well i came upstairs at around 11 last night to find the Internet light was red

I checked the logs and there were loads of entries saying:-

PPP LCP UP

Then it would connect for five then the above entry would be there about ten times then it would connect and disconnect and so on...

I did check the SNR and it was 9.9dB and the ADSL link was unaffected.

Is this an ISP issue or otherwise?

Cheers

Jamie

[jid]

Well i came upstairs at around 11 last night to find the Internet light was red

I checked the logs and there were loads of entries saying:-

PPP LCP UP

Then it would connect for five then the above entry would be there about ten times then it would connect and disconnect and so on...

I did check the SNR and it was 9.9dB and the ADSL link was unaffected.

Is this an ISP issue or otherwise?

Cheers

Jamie

Anyone got any ideas why this is happening?

[kitz]

http://forum.kitz.co.uk/index.php?topic=2247.msg77836;topicseen#msg77836

Not sure - but PPP is usually the ISP bit...
Possibly problems logging into your ISP or a router config problem.

[jid]

http://forum.kitz.co.uk/index.php?topic=2247.msg77836;topicseen#msg77836

Not sure - but PPP is usually the ISP bit...
Possibly problems logging into your ISP or a router config problem.

Well I have posted on the Forums, I will see what they say about it. If not, I will email them.

Cheers

Jamie

[jid]

Update:-

Have updated Router firmware by two versions! Loads of features have now appeared including:-
 - Routing
 - SNMP
 - Improved Stats pages
 - And.......Output power is the right way around!!!!

I am going to trial the firmware for overnight and see how it performs, i am currently at 5664kbps after the reboots due to Firmware updates so I will see how it goes with regard to PPP session issues, as it seemed the router locked up when they happened so it may have been a firmware issue?

DMT latest, more gaps


What I did find was I unplugged one of those plug in extensions and the big gap around 800 became much smaller so I may get a much better CAT5e so I can hard wire to the master like the CAT5e used on the Router upstairs, anyone know where I can get a tidy one as the Sky+ and main phone is connected to it

Regards

Jamie