Intermittent slow access to Web Pages

[Datum]

For over a month we have been having problems when suddenly it may take several minutes to display for example bbc.com. Our BT Business Hub 2700 has been factory reset. This line is dedicated to the broadband. BT Have replaced the wall socket face plate so that a filter is no longer required. All the BT engineers tests show no errors on the line. The problem occurs with a laptop directly connected to the Hub with a Lan cable as well as with all PCs on our network. Max of about 6 at any one time.

The max speed we have ever been able to achieve is about 3Mb although the Hub shows about 5Mb.

I have just run http://speedtest.btwholesale.com/ and the speed showed 1.4Mbps and then rerun 3.5Mbps ping 66ms.

Our server is running Windows Server 2011

Can anyone suggest anyway I can monitor what may be causing the problem and also comment on the data below. In Particular the Corrected and Uncorrect block counts - do these indixcate anything. This is data collected over a bit more than 24 hours.

DSL Details

Modem Type:	Built in modem - ADSL
DSL Line (Wire Pair):	Line 1 (inner pair)
Current DSL Connection:
Rate:	Down 5971 kbs	Up 917 kbs
Max Rate:	5889 kbs	912 kbs
Noise Margin:	8.7 dB	5.5 dB
Attenuation:	46.7 dB	25.7 dB
Output Power:	19.5 dBm	12.5 dBm
Protocol:	G.DMT2 Annex A
Channel:	Interleaved
DSLAM Vendor Information	Country: {46336} Vendor: {IFTN} Specific: {51313 }
ATM PVC:	0/38
Rate Cap:	5889 kbs
Attenuation @ 300kHz:	46.7 dB
Uncanceled Echo:	-11.7 dB	Ok
VCXO Frequency Offset:	6.0 ppm	Ok
Final Receive Gain:	25.5 dB	Ok
Excessive Impulse Noise:	0	Ok

Traffic Statistics

Bytes Packets Errors % Cells Errors %

IP Traffic
Transmit:	1012255532	83	0	0
Receive:	3164942025	4058410	0	0
ATM Traffic
Transmit:	29121401	0	0
Receive:	69498414	0	0

DSL Link Errors

Collected for 1Day22:53:28

Reset 24-hr int. 15-min int. Last Event

	Since	Current	Current	Time Since
ATM
Last Event
Cell Header Errors	8937	8083	8	0:00:15
Loss of cell Delineation	799	685	2	0:00:48
DSL
Link Retrains:	0	0	0	0:00:00
DSL Training Errors:	0	0	0	0:00:00
Training Timeouts:	0	0	0	0:00:00
Loss of Framing Failures:	0	0	0	0:00:00
Loss of Signal Failures:	0	0	0	0:00:00
Loss of Power Failures:	0	0	0	0:00:00
Loss of Margin Failures:	0	0	0	0:00:00
**bleep**. Seconds w/Errors:	3080	2465	8	0:00:15
**bleep**. Sec. w/Severe Errors:	101	101	0	7:15:55
Corrected Blocks:	485214	432973	734	0:00:05
Uncorrectable Blocks:	10273	9344	10	0:00:15
DSL Unavailable Seconds:	0	0	0	0:00:00

[Datum]

The max speed we have ever been able to achieve is about 3Mb although the Hub shows about 5Mb.

I have just run http://speedtest.btwholesale.com/ and the speed showed 1.4Mbps and then rerun 3.5Mbps ping 66ms.

Our server is running Windows Server 2011

Can anyone suggest anyway I can monitor what may be causing the problem and also comment on the data below. In Particular the Corrected and Uncorrect block counts - do these indixcate anything. This is data collected over a bit more than 24 hours.

DSL Details

Modem Type:	Built in modem - ADSL
DSL Line (Wire Pair):	Line 1 (inner pair)
Current DSL Connection:
Rate:	Down 5971 kbs	Up 917 kbs
Max Rate:	5889 kbs	912 kbs
Noise Margin:	8.7 dB	5.5 dB
Attenuation:	46.7 dB	25.7 dB
Output Power:	19.5 dBm	12.5 dBm
Protocol:	G.DMT2 Annex A
Channel:	Interleaved
DSLAM Vendor Information	Country: {46336} Vendor: {IFTN} Specific: {51313 }
ATM PVC:	0/38
Rate Cap:	5889 kbs
Attenuation @ 300kHz:	46.7 dB
Uncanceled Echo:	-11.7 dB	Ok
VCXO Frequency Offset:	6.0 ppm	Ok
Final Receive Gain:	25.5 dB	Ok
Excessive Impulse Noise:	0	Ok

Traffic Statistics

Bytes Packets Errors % Cells Errors %

IP Traffic
Transmit:	1012255532	83	0	0
Receive:	3164942025	4058410	0	0
ATM Traffic
Transmit:	29121401	0	0
Receive:	69498414	0	0

DSL Link Errors

Collected for 1Day22:53:28

Reset 24-hr int. 15-min int. Last Event

	Since	Current	Current	Time Since
ATM
Last Event
Cell Header Errors	8937	8083	8	0:00:15
Loss of cell Delineation	799	685	2	0:00:48
DSL
Link Retrains:	0	0	0	0:00:00
DSL Training Errors:	0	0	0	0:00:00
Training Timeouts:	0	0	0	0:00:00
Loss of Framing Failures:	0	0	0	0:00:00
Loss of Signal Failures:	0	0	0	0:00:00
Loss of Power Failures:	0	0	0	0:00:00
Loss of Margin Failures:	0	0	0	0:00:00
**bleep**. Seconds w/Errors:	3080	2465	8	0:00:15
**bleep**. Sec. w/Severe Errors:	101	101	0	7:15:55
Corrected Blocks:	485214	432973	734	0:00:05
Uncorrectable Blocks:	10273	9344	10	0:00:15
DSL Unavailable Seconds:	0	0	0	0:00:00

[Burkem5]

Hi there Datum,

Can you tell me what happens when you let a page load and then press [ctrl]+[F5] ?

Can you also tell me what your ping time is please?
You can get this by running a speed test, however the best way to do this is through the Command Prompt/ terminal

IN Windows

1. Click Start
2. Click the search button/bar
3. Type "CMD" then enter
4. Then type "ipconfig"
5. Look for the number next to "Default Gateway", please take a note of this
6. Then type "ping -n 25 www.google.co.uk"
7. Take a note of the ping time in the "ping statistics" at the bottom of the page - we expect this to be between ~ 30 - 80
8. Then type "ping -n 25 *default gateway*" - replace *default gateway with the number you took a note of earlier, we expect this to be around 1-15 on a wired connection

In Mac

1. Close or minimise all open windows
2. Click on the "Apple" icon
3. Click on "System Preferences"
4. Take a note of the number next to "Router" on your active (green) connection
5. Bring up the finder (blue and white face icon)
6. Then click Applications
7. Then "Utilities"
8. Then "Network Utility"
9. Then "Ping"
10. Then type "www.google.co.uk" into the network address box
11. Choose "Send only __ Packets" and type 25
12. Click the "Ping" button
13. Take a note of ping time from the "Ping Statistics" Section at the bottom of the page - we expect this to be between ~30-80
14. Repeat steps 10-13 only type the "router" address you took a note of earlier rather than www.google.co.uk - we expect the ping time on this, on a wired connection, to be around 1-15.

It is also worth while pinging the IP address of google .co.uk to see if your DNS server is at issue,  as soon as you ping google your computer and show you this.  Its then just a case of replacing www.google.co.uk with the IP.

An example of this would be
--- PING www.google.co.uk (74.125.143.94) 56(84) bytes of data. ---
64 bytes from 74.125.143.94: icmp_seq=1 ttl=46 time=41.7 ms

Then just substitute 74.125.143.94

If you are noticing a high ping time to google  but not to the default gateway/router contact us

If you are noticing a high ping time to both then there is an issue in your internal network

If the router/default gateway is ok, the IP is ok,  but the web address is high then we have an issue with the DNS server and need to change that.

Its also worth while clearing any and al proxy settings in your browser.

I hope this helps

Burkem5