Solved Can't name my network

[RoWin7]

I have 3 desktop computers and one printer on my wired network. 2 are Win XP, and this one is Win 7 Ultimate. When I marked certain files in each one for sharing, surprisingly, the network set itself up immediately, calling itself "Homegroup." I'm accustomed in XP to naming my network, but I don't have this page in the tutorial asking me for a name. I tried all the links. Is a unique name still necessary in Win 7?

Network Name and Icon - Change - Windows 7 Help Forums

EDIT--see 2nd post.

 

[RoWin7]

OK, found the right links, and I've renamed the network my old name "RSNETWORK," but when I click on it, there's a message that I'm (this Win7 comp) not connected to it. I'm really confused. I've already followed the tutorial and listed my network as "work" rather than "home." Is there a difference between a homegroup and a network?

The Verizon techie was here today to fix my ONT, and he turned off my network temporarily. I don't know if that's relevant.

http://i1066.photobucket.com/albums/u404/photob32/MISC/netw1.jpg

http://i1066.photobucket.com/albums/u404/photob32/MISC/networki%20dialogue1493950374.jpg

 

[RoWin7]

Just found the thread about specs.
I'm on a wired network, ISP Verizon FIOS, Actiontec modem/router
Win7 computer-- BitDefender AV, Windows Firewall
On the XP computer--BitDefender AV, Comodo Firewall

Right-clicking "cmd" does not produce "Run as Administrator."
I have no idea what this is: "Tunnel adapter Teredo Tunneling Pseudo-Interface." I have no hardware with that name.


IP config/all as follows:
Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

C:\Users\Prize-02>ipconfig/all

Windows IP Configuration

Host Name . . . . . . . . . . . . : Win7comp
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : home

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . : home
Description . . . . . . . . . . . : Realtek PCIe GBE Family Controller
Physical Address. . . . . . . . . : 38-60-77-9F-9E-9D
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::d03b:7f88:bfdd:32fd%10(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.1.2(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : Friday, May 05, 2017 11:30:08 AM
Lease Expires . . . . . . . . . . : Saturday, May 06, 2017 5:54:22 PM
Default Gateway . . . . . . . . . : 192.168.1.1
DHCP Server . . . . . . . . . . . : 192.168.1.1
DHCPv6 IAID . . . . . . . . . . . : 238575735
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1F-98-4A-4A-38-60-77-9F-9E-9D

DNS Servers . . . . . . . . . . . : 192.168.1.1
NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter isatap.home:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : home
Description . . . . . . . . . . . : Microsoft ISATAP Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Teredo Tunneling Pseudo-Interface:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv6 Address. . . . . . . . . . . : 2001:0:5ef5:79fb:3469:21ea:3f57:fefd(Pref
erred)
Link-local IPv6 Address . . . . . : fe80::3469:21ea:3f57:fefd%15(Preferred)
Default Gateway . . . . . . . . . : ::
NetBIOS over Tcpip. . . . . . . . : Disabled

C:\Users\Prize-02>