Lost connection to Windows workgroup

I cannot figure this out. I have had Macs & PC's networking fine for years, but the following just happened to me with a month old MacMini.
The MacMini is running Snow Leopard. It has been able to network with a Windows workgroup and access all the computers & connected printers. As of yesterday, none of these computers show up in Finder under Shared or Network. I used to always see the Windows workgroup under Network, but now it does not appear.
I have tried everything that I can think of, but cannot find where this is going wrong. I am able to access the MacMini from the Windows machines (one running XP and the other running W7), but not he other direction.
I am able to connect to the Windows machines by using Finder>Go>smb:// method, but this doesn't get me to the printer.
After years of effortless shared printing, I'm at a loss.

See if this web site can be of help:
http://www.ifelix.co.uk/tech/

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aluniewski,
I am sorry, but to get your issue more exposure I would suggest posting it in the commercial forums since this is a commercial printer. You can do this at http://h30499.www3.hp.com/hpeb/ .
I hope this helps.
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From: Jeromie Clark <[email protected]>
To: Jason Pearlson <[email protected]>
Sent: Wednesday, March 25, 2015 10:46 PM
Subject: I cannot install Adobe Flash Player. I have windows 7 64bit and firefox browser. During install i get a message 'lost connection', followed by 'trying to reconnect', and then connection failed
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The Oowf
Message was edited by: oowf

I was told my post was in the wrong forum so I re-posted in the correct forum and want to delete this post but can't see how.
I would ask an admin to delete it for me..
I do apologize...
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I have a time capsule directly connected to fibre optic point out. All pcs and macs are connected wirelessly to the internet. I have connected a windows server pc to TC. When configured for Remote desktop connection, I can access windows server from within interanet but don't know how to access it from internet. I guess I need to change some settings in TC to get some ip adress for the remote desktop connection from my home. Anyone who can help me out? Appreciate it.
Narmin

I am a little lost now.. I have read again your title and your first post.. and they seem inconsistent.
In the title you state.
From my interanet I can access srvr but not from my home.
Interanet is not a word I know.. I assumed intranet...are you talking about internet or intranet? And just to be clear say WAN or LAN.. !! Is your home part of the interanet??
In the first post you state,
I can access windows server from within interanet but don't know how to access it from internet.
Now this is more normal.. the issue is not in the home at all, it is accessible from there but fails from internet. If this is correct, then you can do a few obvious things to determine where the problem is.
But first I need to know are you actually testing from a different internet connection to your home lan.. you are not just trying the public IP from inside the LAN as that will fail due to the TC not doing NAT Loopback.
I am also assuming the TC is the only router in the network, and has the public IP on the WAN interface.
And I am also assuming you have turned on the ping responder and you can actually ping your public ip from the internet and get a response. This helps no end in figuring out where there are issues. Strange but I have no idea if there is a ping responder in the TC WAN so you might need to forward that as well. Also if you have a dynamic public ip address are you using dyndns or no-ip or some other service to connect.
1. Test bypassing the TC.. plug the internet connection straight into the windows server,, and test if you have access. If yes, the TC is the problem.. if not, your setup on the windows server is wrong.. look at firewall in particular.
2. Assuming from test 1 the TC is the problem, Post the screen shots of the port forwarding setup for us to look at.. that is by far the easiest way to check it out.
There are lots of references to port forwarding in the TC.. eg
http://must-know-mac.blogspot.com/2008/07/how-to-port-forward-time-capsule.html
The things that generally go wrong are firewall on the computer that is accepting the port.
The ISP doesn't allow connections on a particular port. (not likely in your case)
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Upnp has already allocated a port.. not an issue as TC doesn't use upnp although a reboot of everything after you set port forwards is well worth it.. amazing how things don't stick properly without a reboot.
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