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Basically, I cannot connect to anything using the telnet software that comes with Windows. I have enabled the telnet service and I can't work out what's causing it so I'm wondering if you guys could help. I'm using Windows XP and the error message I get is:

Could not open connection to the host, on port 23: Connection failed
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Last Post by fallout4player
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I'm using BT and I'm trying to use remote. Is there anyway to stop them blocking it?

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Sorry about my last post 23 should be open. It is port 25 that ISPs are blocking.

You are using a CMD prompt in XP? can you ping the site?

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Yeah I'm using Command Prompt on XP. I can ping this site fine but when I try telnet on port 80 on this site, the screen goes completely black and I can't type anything.

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Do you know any sites that work that I could try it out on. I tried it on LOCIS (The Library of Congress Information System) but I only get the message saying it could not connect, on both 23 and 80.

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telnet time-a.nist.gov 13

This will give you the UTC time, date and then disconnect (port 13).

If you are just experimenting why not try your own mail server? I don't know who BT is, but you can find the ports that corrispond to their SMTP an POP3 servers usually 25 and 110.

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Yeah that worked. Maybe the LOCIS isn't up and running anymore. Thanks for the help!

PS. BT is an ISP here in the UK. It stands for British Telecom.

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