asked on

ftp disconnects after logging into my network

Hi I have a adsl service shared by 4 computers.
One of the computer is acting as a ftp server, but when users logged into my ftp server they are immediately disconnected.

My adsl modem is connect to my linksys router/switch. I enable port forwarding for 20-30 to a static IP my ftp server is running. The ftp server is bullet proof ftp server.

What could be the problem?

Thanks

HDWILKINS

Are the 'users' local to the LAN or from outside?

Harry

aciddrops

ASKER

the users are external to my network.

HDWILKINS

My guess is that your ADSL provider restricts this. How are you handling dns? I assume you can ftp from within the LAN OK.

Harry

aciddrops

ASKER

If i am using only the adls modem is works but when the router/switch is connected is screws everything up. So i think i can rule out the provider. What other reasons can there be?

tHANKS

HDWILKINS

Well if you can use FTP when the router isn't there, and you can't use it when it is, then its the firewall in the router.

Do you have the proper port forwarded to the right machine. I think its Port 21?

Harry

aciddrops

ASKER

i forwarded 20-30 but still problem. What can drop a connection after the user logged into the ftp server? There is no firewall on the router or the PC

HDWILKINS

Aren't you using a Linksys router??

HW

aciddrops

ASKER

yes. but i didn't not download the firewall. So you think the firewall might be the problem?

HDWILKINS

What is the model number of the Linksys you are using.

HW

aciddrops

ASKER

BEFSR41 is the linksys 4 port dsl router/switch. There is an option for downloading of zonealarm but i didn't not.

HDWILKINS

Ok, I use a Linksys. What is your Firmware Version?

aciddrops

ASKER

1.42.7.

drev001

You should only need tcp ports 20 and 21 for ftp. I reckon it's probably a config problem within the FTP software.

Try something else, I use MeteorFTP:

http://www.zdnet.com.au/downloads/pc/swinfo/0,2000036746,7998901,00.htm

I got fed up with various ftp servers I tried and settled with this one. I have a similar setup to you (NAT on router, forwarding 20&21)

Good luck

ASKER CERTIFIED SOLUTION

aciddrops

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial

_tack

No comment has been added lately, so it's time to clean up this TA.
I will leave a recommendation in the Cleanup topic area that this question is:

PAQ refund

Please leave any comments here within the next seven days.

PLEASE DO NOT ACCEPT THIS COMMENT AS AN ANSWER!

_tack
EE Cleanup Volunteer