I'm slightly surprised that just ftp-ing a file to your printserver prints it, but, OK, and I learn something new every day.

ifconfig on each machine will help you with the next Q's.
You can http://printserver to find out what your printserver's LAN IP and netmask are set as.

Now, please fill in the blanks:
Please replace "New Lap" etc. with its real name.

Thank you Tredegar!

And what a silly error it was.....

Let me explain: as you suggested I used ifconfig to get the computer data (ip/netmask), piece of cake; the printserver gave me a harder time though (used http to get into the printserver) - the ip-address was easily found, but the netmask was a lot harder. When I in my search through a lot of menus stumbled upon the netmask number, I also found a menu that tells the printserver the mac-addresses of the computers allowed to use it to print..... Nice protection, sounds indeed as a kind of firewall! Anyway - provided my laptops mac address, saved the info, and was able to print. YES!

Thanks all for your replies!

PS: setting up the printer in Ubuntu using the printer gui worked like a charm.

Ah!

I had assumed you had already checked this (MAC address filtering was mentioned in post #13). But your problem is now isolated and fixed. Good.

No matter how many times I ask people not to make assumptions, and double-check everything, I still do this myself on occasions (like my last post - I should have said "Did you really check for MAC address filtering?") and live to regret the consequences.

As an aside: When I first started using wireless on my home network I was quite paranoid, and used MAC address filtering as well as WPA encryption. Then I read that MAC address filtering is completely trivial to circumvent, so its "security" value is nil.

When my family visit, they like to use my network (they know my WPA key) and it became a PITA every time they changed their hardware, because the MAC had changed and I had to update the MAC address tables. So I just disabled it: Life is now less troublesome, but just as secure.

The bottom line:
If you use WPA, you do not need MAC address filtering (which is useless anyway, and gives a false sense of security) so I think you can just disable it, or you'll probably be back here in six months because you forgot that you had it enabled.
If you use WEP, switch your wireless network to WPA, and keep yourself up to date with future methods of encryption.

That's been my experience too (once the networking is sorted out!).

Happy printing.

When I found the problem I actually thought of it as a nice way of protection - if the mac-address is not set, than one cannot print! Why is this a false sense of security?? Sure some people will be able to get around it, but not the general computer user, right?

Of course on the other hand, what am I afraid of? My network is fully wired, in fact I don't even have a wireless router anymore, so the likelihood of someone breaking into my system is rather small. Next to this the computers/printer only run for a limited time every day.

When you would have asked if I had checked the mac-address-filtering, I probably would have asked you what exactly you meant... I totally forgot even about the existence of it!

Thanks again.