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Standard User bramblejam
(newbie) Mon 25-Jun-12 11:51:07
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Tesco


[link to this post]
 
Further to the other poster, I too have had a problem with Tescco. I cannot upload any files, they time out. I am trying to upload to Flickr and Dropbox. The problem has started in the past month, ever since Tesco swapped their services over. They are now telling me that it is my problem - Port 80 is blocked on my PC but they cannot help to resolve this. I am running Windows 7, with Windows Firewall and AVG anti-virus.
I am not sure how to deal with this. Is there a way of telling which ports are used and/or blocked and is it on my router or PC?

This problem is affecting lots of customers (according to Tesco).

Edited by bramblejam (Mon 25-Jun-12 11:53:50)

Standard User gomezz
(eat-sleep-adslguide) Mon 25-Jun-12 12:06:52
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Re: Tesco


[re: bramblejam] [link to this post]
 
Which model router?

O2 Standard (8Mbps LLU)
Standard User XRaySpeX
(eat-sleep-adslguide) Mon 25-Jun-12 12:36:28
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Re: Tesco


[re: bramblejam] [link to this post]
 
In reply to a post by bramblejam:
Port 80 is blocked on my PC
Well it would be! You are not running a web server on your PC.
In reply to a post by bramblejam:
Is there a way of telling which ports are used and/or blocked
Yes: https://grc.com/x/ne.dll?bh0bkyd2 => All Service Ports, but you are barking up the wrong tree by worrying about ports.

1999: Freeserve 48K Dial-Up => 2005: Wanadoo 1 Meg BB => 2007: Orange 2 Meg BB => 2008: Orange 8 Meg LLU => 2010: Orange 16 Meg LLU => 2011: Orange 19 Meg WBC


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Standard User ukfsn
(knowledge is power) Mon 25-Jun-12 12:47:33
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Re: Tesco


[re: bramblejam] [link to this post]
 
Try setting the MTU on your router to 1400 or so. If that "fixes" the problem it would indicate that your provider does not have their network equipment properly configured.

UK Free Software Network
http://www.ukfsn.org/
ADSL Broadband, Hosting, Domains, SSL and more
Standard User gomezz
(eat-sleep-adslguide) Mon 25-Jun-12 13:19:51
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Re: Tesco


[re: ukfsn] [link to this post]
 
"ALL RED CARD HOLDERS TO NETWORK SUPPORT, PLEASE!"

O2 Standard (8Mbps LLU)
Administrator MrSaffron
(staff) Mon 25-Jun-12 13:19:53
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Re: Tesco


[re: bramblejam] [link to this post]
 
Port 80 is not totally blocked, as you are accessing this site using port 80.
Port 80 would only need to be open incoming if you were running your own webserver.

Have you tried sending a 100 byte text file to DropBox? If that works, but larger text files don't, then nails the issue to be an MTU one most likely/

Andrew Ferguson, andrew@thinkbroadband.com
www.thinkbroadband.com - formerly known as ADSLguide.org.uk
The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
Standard User E7er
(knowledge is power) Mon 25-Jun-12 16:05:37
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Re: Tesco


[re: bramblejam] [link to this post]
 
Hi, you can calculate the MTU value and it does work, my connection produced 1492 which is what Orange recommend. I set my Orange Bright Box router to MTU 1500 before the test.

http://www.dslreports.com/faq/695

My Broadband Speed Test
Orange WBC 20 Mbps. Sync 11864 kbps Downstream, 1189 kbps Upstream.
Bright Box ADSL2+ wireless N Router supplied by Orange
BT Business Hub 2Wire 2700HGV v2 ADSL2+ Dual SSID wireless Router
Standard User XRaySpeX
(eat-sleep-adslguide) Mon 25-Jun-12 16:48:59
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Re: Tesco


[re: E7er] [link to this post]
 
In reply to a post by E7er:
I set my Orange Bright Box router to MTU 1500 before the test.
Eh? BrightBox has hard-coded max MTU of 1492.

So you never actually proved anything wink; MTU on BTw WBC is actually 1500.

1999: Freeserve 48K Dial-Up => 2005: Wanadoo 1 Meg BB => 2007: Orange 2 Meg BB => 2008: Orange 8 Meg LLU => 2010: Orange 16 Meg LLU => 2011: Orange 19 Meg WBC
Standard User E7er
(knowledge is power) Mon 25-Jun-12 22:04:01
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Re: Tesco - EDITED


[re: XRaySpeX] [link to this post]
 
In reply to a post by XRaySpeX:
In reply to a post by E7er:
I set my Orange Bright Box router to MTU 1500 before the test.
Eh? BrightBox has hard-coded max MTU of 1492.

So you never actually proved anything wink; MTU on BTw WBC is actually 1500.
When Orange moved me from LLU to WBC the MTU 1500 calculated as being required for my connection, now itís calculating with the new Bright Box router MTU 1492.

I discovered using the hidden parameters page http://192.168.1.1/xc324m12sdlo.htm and change the operation Mode from "Automatic" to G.992.5 (ADSL2+) then the Bright Box MTU can be saved as MTU 1500. cool

My Broadband Speed Test
Orange WBC 20 Mbps. Sync 11864 kbps Downstream, 1189 kbps Upstream.
Bright Box ADSL2+ wireless N Router supplied by Orange
BT Business Hub 2Wire 2700HGV v2 ADSL2+ Dual SSID wireless Router

Edited by E7er (Mon 25-Jun-12 23:08:24)

Standard User XRaySpeX
(eat-sleep-adslguide) Mon 25-Jun-12 22:35:35
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Re: Tesco - EDITED


[re: E7er] [link to this post]
 
In reply to a post by E7er:
I discovered using the hidden parameters page http://192.168.1.1/xc324m12sdlo.htm and change the operation Mode from "Automatic" to G.992.5 (ADSL2+) then the Bright Box MTU can be saved as MTU 1500. cool
uncool Doesn't work for me! Comes up with:
You've entered an unsupported value for 'MTU'. Please use a number between 576 and 1492.
both in Basic & Advanced Set-up.

1999: Freeserve 48K Dial-Up => 2005: Wanadoo 1 Meg BB => 2007: Orange 2 Meg BB => 2008: Orange 8 Meg LLU => 2010: Orange 16 Meg LLU => 2011: Orange 19 Meg WBC

Edited by XRaySpeX (Tue 26-Jun-12 01:21:28)

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