Ping-but no communication

Hello,
My G5 is unable to communicate with my printers via ethernet (or airport) or with my laptop via "connect to server". When I try to log on to the G5 from the lap top I get an ftp dialogue connection box asking for my userid and pw. I can eventually get on to the g5, but it does not show my different users and only connects through the user i am logged on as (does not show name of user).
When I try to log on from the g5 to the lap top, i get as far as choosing the share drive to log on and then the beach ball begins to endlessly spin, i have to restart in order to make it go away.
I can ping both the network printers and the laptop successfully with all packets sent and received.
Also, one of my printers is connected via ethernet, it is an hp Colorlaserjet 2840, I can get a test page to print if i go through the browser based printer utility. but no other application will print.
I reset the PRAM. no luck. Tiger version 10.4.11
Any ideas out there? Thanks
LM

Hello,
Thanks for responding.
Answers to your questions:
1) _+Are you trying to do ftp?+_
No- I am in the finder window, I click on the "network" icon then "servers" then on"computer name", the next thing that comes up is the log in box for ftp. I have been logging on using the finder window for several years, this is the first time i have seen the "ftp" login box when trying to connect to my local network.
+_Are you using Finder>Go Menu>Connect to Servers>afp://ip.of.lap.top?_+
Normally I log on using the network icon in the finder. I tried logging on through "go" "connect to server" using afp://xxx.xxx.xx.xx this is the message I get:
Connection failed: The server may not exist or it is not operational at this time. Check the server name or IP address and try again.
I also tried to connect using the computer name
afp://laptopname.local, I get as far as selecting a volume to mount, when I select the volume, the beach ball begins to spin endlessly and I have to restart the G5 in order to get it to stop, it will not allow me to cancel.
+_Do you try logging in as the "TO" Username & PW, instead of the "FROM" username & PW? The G5's Username & PW in that top case?_+
As of this morning,i cannot even get the laptop to show that the G5 even exists on the network. I pinged again (both ways) with the following results g5 to laptop = 10 packets sent, none received. same results going from laptop to g5.
Any ideas?
Thanks
LM

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