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PC & MAC CLINIC - On line problem solving. (CPU)     

Crocodile - 16 Dec 2002 03:59

Iain - 10 Mar 2005 15:47 - 3076 of 11003

The Other Machines only give me a WEP Security option.
Changed it WPA on master Computer.But other 2 comps still connect ok with old wep security numbers in

Optimist - 10 Mar 2005 16:13 - 3077 of 11003

Iain

In that case you are stuck with WEP.

In the router config:-

Select Wireless
Check the WEP security box
Check the Enable wireless security box
Set Authentification Type to Shared
Select the First Key
Set Cipher to 128bit (It looks like your router will support 256 bit but only use this if your computers will also take 256 bit)
Paste your 26 character (longer for 256 bit) Hex string
Click the apply button.

Set up computers.

7thFloor - 13 Mar 2005 11:45 - 3078 of 11003

Speed Test for Broadband:

I have been upgraded to 2Mb broadband (maybe!). When I use my usual speed test site (http://myspeed.visualware.com) it tells me that I have only a download speed of 1.25Mb (tested at various different times).
I queried this with my supplier BTYahoo and they pointed me to their speed test which downloads specified size files. As an example, I can download a 10Mb file is approx 45/50 seconds which I reckon is about right for 2Mb.

Is there another site that tests speed of connection. I never doubted the visualware site before when I had 1Mb

robber - 13 Mar 2005 12:01 - 3079 of 11003

www.pcpitstop.com

kernow - 13 Mar 2005 12:52 - 3080 of 11003

Finally managed to security enable my router thanks in part to the postings here (and thanks Iain for your telephone offer - rang, answering m/c and you don't have a money am e mail link). Turns out the router needs restart on change of settings - just clicking "apply" is not enough. Why can't the manuals make this clear - gurrr.

Seymour Clearly - 13 Mar 2005 13:01 - 3081 of 11003

Having a prob with my wireless laptop. It connects to wireless routers at work but it has stopped connecting fully at home. I get the message "This connection has limited or no connectivity" Signal strength is fine, clicking repair the connection doesn't work. Help!

Kayak - 13 Mar 2005 13:12 - 3082 of 11003

7thfloor, http://www.adslguide.org.uk/ is probably the best since it is based in the UK and will be more accurate (most are in the US). There is also a way to do a speed test with BT wholesale thereby avoiding the ISP and any delays they may be introducing. Details are somewhere on the ADSL guide site.

Optimist - 13 Mar 2005 13:20 - 3083 of 11003

SC

The most likely causes are that it has lost the security key of can't find a DHCP server.

Kayak - 13 Mar 2005 13:28 - 3084 of 11003

To access the BT Wholesale test, bypassing your ISP:

1. Change the login your ADSL modem or router is using to speedtest@speedtest_domain, the password can be anything.

2. Browse to http://www.speedtester.bt.com, enter your telephone number and run the test.

This is really only useful if you suspect your ISP is not performing as it should. Bypassing it enables you to check what it should perform like in theory.

7thFloor - 13 Mar 2005 13:57 - 3085 of 11003

Speedtesting : Thanks Kayak and Robber.

PC Pitstop says I'm downloading at 936kbits/sec & Bt says it's 1426 Kbps. Confusing or what?

BT test also says :

BT would regard the speed ranges shown below as normal service:

For 250kbps End Users speeds between 50 - 250kbps.
For 500kbps End Users speeds between 100 - 500kbps.
For 1000kbps End Users speeds between 200 - 1000kbps.
For 2000kbps End Users speeds between 400 - 2000kbps. (What a range!!!!)

Edit: Going back to my original speed tester. Visualware says that at 1.25Mb (which is what it says my speed is) I would be able to download 10Meg file in 1 minute, yet BT support is saying that 10 Meg file will take approx 50 seconds with 2Meg service.
Different standards???? I thought it was all pure maths!

Spaceman - 13 Mar 2005 14:26 - 3086 of 11003

7thfloor, you have to remember that the internet is a dynamic medium, you do not have direct point to point connections and information is being routed, there are many different routs that data can go to get between you and wherever you are accessing. When you add in the load on your PC and on the server hosting the pages or files plus possible bottlenecks with some routers it end up being very variable.

Seymour Clearly - 13 Mar 2005 18:07 - 3087 of 11003

Optimist, thanks. I'm sure that's it having thought about it. I connected it to father-in-law's security enabled wireless router and the problem has occurred since then. I'll make mine the same security key as his and that should do it - running the same router. Will report back :-)

Kayak - 13 Mar 2005 19:48 - 3088 of 11003

7thFloor, I would not place much reliance on the PC Pitstop or Visualware results since their servers are in the US and transatlantic bandwidth will play a part. ADSL Guide (at http://www.adslguide.org.uk/tools/speedtest.asp) is UK based and pretty reliable, BT will be the most reliable but excludes the ISP effects.

Try ADSL Guide and BT at night (after 11pm) and they should approach 1800-1900 kbps. You'll never get the maximum 2048kbps since there is overhead in the TCP protocol. During the day it will tend to vary down from the maximum but if you are getting 1426 kbps consistently I would certainly complain.

Ensure however that before you try the speed test you close all running windows and anything that might be using the internet.

robber - 13 Mar 2005 20:17 - 3089 of 11003

7th floor, I would also normally recommend adslguide.org for the same reasons as Kayak but have found that their speed check wasn't working for me today. Hope you have better luck.


Neil

Spaceman - 13 Mar 2005 20:49 - 3090 of 11003

adslguide speedcheck seems to have been very overloaded recently, it often says its not available due to max number of tests being run, i agree with the others thats its about the best quick checker.

Dailos - 13 Mar 2005 21:22 - 3091 of 11003

Another lap top gone tits up!
Got one with a blue screen, a load of technical mumbo jumbo preceeded by "kernal_data_inpage_error"..cant keep throwing these poxy lap tops away, must be me?
This ones a Dell Inspiron 8500
Got this problem before on one i chucked, was told by the guy in the shop "it was probably caused by a device driver"..i just said thanks and walked out none the wiser, is it fooked or can i cure it, it wont even switch off?
Please answer in a style to be understood by a simpleton!

Seymour Clearly - 13 Mar 2005 22:11 - 3092 of 11003

Optimist, all sorted now. Have used the same security code as my father-in-law's wireless router - problem occurred because it was the same type as mine but the laptop couldn't differentiate between them.

Optimist - 13 Mar 2005 23:42 - 3093 of 11003

SC

I'm glad your sorted. Make sure that all of the wireless access points have a different and non default SSID. This will enable your laptop to distinguish them.

Dailos

I will happily take that laptop off your hands ;)

More seriously, it is most likely a fairly minor disc error that has caused the problem. You could probably repair it with the installation/recovery CD and still retain your data. I would expect the worst case to be a complete format and reinstall or possibly a new hard disk (less than 100).

Edit.

If you do use the recovery disc, this wil restore the system to it's original state, no recent security updates and possibly pre SP2, try to connect to the internet behind a firewall untill you get the system up to date.

MightyMicro - 14 Mar 2005 00:30 - 3094 of 11003

Dailos:

A very old rule for computer techies to remember is:

"To the ordinary user, most software problems look like hardware problems."

It's a 90%+ bet that you simply have a screwed up piece of software.

Otherwise, it's a relatively easily sorted disk problem. The message will be "KERNEL_DATA_INPAGE_ERROR" (two E's in kernel as in kernel of a nut, the core of the operating system).

"The guy in the shop" is frequently clueless, IMHO.

Which OS are you running, Win XP, perchance?

Let me ask my engineers tomorrow . . .

Cheers

MM

7thFloor - 14 Mar 2005 07:47 - 3095 of 11003

Kayak. Thank you for the link, it has set my mind at rest.

Your Connection
Direction
Actual Speed

Downstream 1852 Kbps (231.5 KB/sec) True Speed: 2000 Kbps (inc. overheads)
Upstream 242 Kbps (30.3 KB/sec) True Speed: 261 Kbps (inc. overheads)


'Actual Speed' is the amount of useful data that your connection can transmit/receive per second.
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