A long shot - and apologies in advance if you have double-checked this already - but are you completely certain that you're connected via the ethernet - directly into the BT router - rather than wireless? I'm mostly clueless about Windows, but I think you can check which interface you're using in the Windows control panel (others might be able to provide better advice).

The reason I ask is that in another thread, your wired and wireless pings looked very similar, when I'd expect wireless to be a few milliseconds (typically 2-4) longer than wired, and also you're reporting some big spikes here. Now, this might all be in the variance due to other activity on your LAN, as others here have indicated, but wireless is also prone to more "jitter" in ping times, due to interference etc.

If you are running wireless by accident, that could also account for your bandwidth issues; in my case, depending where I am in the house (up to ~50 feet from the router with three solid walls in the way), I see anything from ~1% to 100% of my full-sync BT Infinity bandwidth (i.e., 0.4 - 38 Mbit/s) and so used wired connections and a second wireless access point to fill-in.

I'm wireless and the router is about 8ft away from one pc. Laptop is used in various places throughout the premises. I get same speeds, wireless and wired. I get the full 40000kbps at the socket (been tested twice via JDSU test). I should be getting well over 35mb+

In reply to a post by RobertoS:

There is a sort of 2-day one, which I expect restarts when you have had the the type of engineer intervention you had. But I've just had a thought about the speed. I need to contact someone to ask a question. Laters!

sounds promising. keep me posted!

In reply to a post by trogoy:

I'm wireless and the router is about 8ft away from one pc. Laptop is used in various places throughout the premises. I get same speeds, wireless and wired. I get the full 40000kbps at the socket (been tested twice via JDSU test). I should be getting well over 35mb+

Was it not the BT guy who got 40000kbps at the socket?

yes thats what i said. 2 bt /openreach guys done a "JDSU test" while I was here and both got 40000kbps

I personally get "the same speed wireless and wired of 16-17mb"

Edited by deleted (Tue 10-Jan-12 13:20:48)

Being in cornwall shouldnt make to much of a difference. I'm connected to the Truro exchange on FTTC

Pinging 81.19.219.81 with 32 bytes of data:

Reply from 81.19.219.81: bytes=32 time=14ms TTL=119
Reply from 81.19.219.81: bytes=32 time=13ms TTL=119
Reply from 81.19.219.81: bytes=32 time=14ms TTL=119
Reply from 81.19.219.81: bytes=32 time=14ms TTL=119

Andrew

I'm on Marazion exchange. the cab is at end of my road (about 50 metres away). What down and upload speeds you getting in Truro?

you on business or home router?

I was getting, wireless and wired, download speeds of 9 - 12 Mbps on Infinity on a XP Netbook, and 5 - 8Mbps wireless on an upstairs XP Desktop, . Discovered it was a couple of the shields on Avast 6 Free, installed on both, causing the slow down. Changed to an alternative Anti-virus and wireless speeds shot up to 20 odd Mbps on both, which is near the limit of 11g wireless. I also have a cheap mini USB wireless N adaptor which I tried in both , and can get speeds up around 35Mbps.

Thinking about installing Avast again at some stage, just to see if the problem emerges again.

My connection is about the same 50 metres from the cabinet. I'm on a business connection via entanet.
Modem stats:
Line rate (kbit/s) 39998 Downstream 10000 Upstream
Attainable rate (kbit/s) 126476 downstream 41143 upstream

The attainable rate has come down from 132000ish (cant remember the exact number)
I am currently using a Zywall 35 which unfortunately doesnt seem to be able to cope
with the full speed. But with my Draytek 2920n I get the speeds I would expect on that
profile.

Andrew

In reply to a post by trogoy:

I'm wireless and the router is about 8ft away from one pc. Laptop is used in various places throughout the premises. I get same speeds, wireless and wired. I get the full 40000kbps at the socket (been tested twice via JDSU test). I should be getting well over 35mb+

OK, at 8ft you ought to be able to see most or all of the full WAN bandwidth with wireless; I can pull 30 Mbit/s at 12ft through one solid wall. Have you verified that you can achieve this sort of bandwidth (or better, particularly if wired) between systems on your LAN?

Pinging via wireless is a different matter; the extra latency and jitter means that such measurements aren't particularly useful except as an indicator of the wireless network performance. You might be able to calibrate out a few extra milliseconds in a clean environment, but it's not unusual to see bursts of several hundred milliseconds, particularly if there's other WiFi or RF activity (e.g., from past experience, some Bluetooth devices and a microwave oven) nearby.