I dont use any 3rd part firewalls and everything seemed to be working fine with my prior router. Also since i'm using windows 7 I did not have to join a workgroup as in the prior windows.
The homegroups also detects the computers and shows some of the shared files, but it does not let me go into them. I get the "The remote computer isn’t responding to connections on port 445, possibly due to firewall or security policy settings, or because it might be temporarily unavailable. Windows couldn’t find any problems with the firewall on your computer. " error when i do.
Also I get this report, not sure if it is of any help.
===========================================================================
Interface List
14...00 27 13 44 f8 c5 ......Bluetooth Device (Personal Area Network)
12...00 24 d6 3f f1 fc ......Intel(R) WiFi Link 5100 AGN
11...00 26 9e 9e f7 62 ......Realtek PCIe GBE Family Controller
1...........................Software Loopback Interface 1
18...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter #3
16...00 00 00 00 00 00 00 e0 Teredo Tunneling Pseudo-Interface
===========================================================================
IPv4 Route Table
===========================================================================
Active Routes:
Network Destination Netmask Gateway Interface Metric
0.0.0.0 0.0.0.0 192.168.0.1 192.168.0.186 25
127.0.0.0 255.0.0.0 On-link 127.0.0.1 306
127.0.0.1 255.255.255.255 On-link 127.0.0.1 306
127.255.255.255 255.255.255.255 On-link 127.0.0.1 306
192.168.0.0 255.255.255.0 On-link 192.168.0.186 281
192.168.0.186 255.255.255.255 On-link 192.168.0.186 281
192.168.0.255 255.255.255.255 On-link 192.168.0.186 281
224.0.0.0 240.0.0.0 On-link 127.0.0.1 306
224.0.0.0 240.0.0.0 On-link 192.168.0.186 281
255.255.255.255 255.255.255.255 On-link 127.0.0.1 306
255.255.255.255 255.255.255.255 On-link 192.168.0.186 281
===========================================================================
Persistent Routes:
None
IPv6 Route Table
===========================================================================
Active Routes:
If Metric Network Destination Gateway
16 58 ::/0 On-link
1 306 ::1/128 On-link
16 58 2001::/32 On-link
16 306 2001:0:4137:9e76:3483:34ed:bc5d:8d02/128
On-link
12 281 fe80::/64 On-link
16 306 fe80::/64 On-link
18 286 fe80::5efe:192.168.0.186/128
On-link
16 306 fe80::3483:34ed:bc5d:8d02/128
On-link
12 281 fe80::84fc:e0f2:efd5:e6ad/128
On-link
1 306 ff00::/8 On-link
16 306 ff00::/8 On-link
12 281 ff00::/8 On-link
===========================================================================
Persistent Routes:
None