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No, you've got it wrong, I'm not back to where I started at all. I started with the router MTU being 1458. An initial tweak to 1460 made no difference and, at that point, I began this thread. The router's MTU is now 1500 (which includes the 28 overhead).

If you go for the AdslNation one then yes ------------------------------------------- Freeola[EntaNet] Faraday IPSC node Hmmm... Understanding ADSL | Map Coordinates | and more... SNR: Netgear DG834>2Wire 2700>Thomson ST585v6 My Router Experience

The source of the noise could be anywhere between you and the exchange. The timings seem to suggest that it's coming from a business that doesn't open Saturdays. Home ADSL: Sky Max LLU Business ADSL: Andrews & Arnold Orange 3G Business Everywhere Mobile BB Edited by zebedeee (Sun 22-Nov-09 10:43:29)

I suspect the answer will be no. of course it will, because to test a 1500 MTU you need to ping with a 1472 packet ! Phil MaxDSL - goes as fast as it can and doesn't read the line checker first. MaxDSL diagnostics Are your kids pirates ? Limewire, Bearshare, Kazaa, BitTorrent, eMule are all tools of the trade.

In reply to a post by meditator : Just out of interest, are there any of you using WinXP who are not using the default MTU of 1500? If so, which value are you using, and does it definitely cater for all the websites you use? Yes, as I indicated earlier, I am using MTU=1454 calculated into the Registry by TCPOptimizer. I never have any problem with any communication with any Internet destination (it's not just Browsers that it applies...

Indeed so. My bad, been a long week. I'm just interested to see what results the OP gets now everything is aligned.

Quite a few hours, so have plenty of scope to search. I will use a walkman on AM about 650KHz which picks up the REIN on the incoming BT cable, so I have an idea of the sound the REIN is causing. MrKite

correct, there is a LOT of registry entries that do not exist by default. The code in windows will use a default value when they dont exist. of the top of my head there is 20-30 registry keys inside tcp/parameters that do not exist by default but are configurable. Of course that is just one tiny part of the registry.

In reply to a post by BatBoy : Should still be ADSL2+ though, I believe. Correct; BE Value, BE Unlimited, BE Pro....Doesn't matter; the connection (by default) will be ADSL2+. The only time this tends to change is if users override it in their own routers or if the supplied BEbox goes nuts and drops back to ADSL2 or ADSL1 (they're known for dropping back to ADSL2, for no apparent reason, but I've never heard of one...

They are under no obligation, a lot depends on whether its affecting more people and what the cause actually is. Andrew Ferguson, andrew@thinkbroadband.com www.thinkbroadband.com - formerly known as ADSLguide.org.uk