I've been have the trouble with connecting with my workgroup switch the past few days after coming back from a trip. It simply refuses to connect to the internet even after trying a bunch of solutions that i've found on this websites and others.
One of the things that's strange is that (to my knowledge) nothing has changed from the time I left and came back other than turning off the computer. After coming back, it shows the Ethernet connection that I've been using (that's plugged into the workgroup switch with the switch having a phone line running from it to a plug in the wall) showed up as a public network under the name "Unidentified network". It won't let me change the fact that it's public either(i've tried the powershell solution to that which also didn't work for some reason). So far i've tried a bunch of things to see what I can do about it but after seeing that the problem wasn't solely with the desktop i've been using (tried it with a laptop and had the same result) i'm really not sure what to do at this point other than buying another one and seeing if it works.
Some extra info that might help identify the problem:
One of the things that's strange is that (to my knowledge) nothing has changed from the time I left and came back other than turning off the computer. After coming back, it shows the Ethernet connection that I've been using (that's plugged into the workgroup switch with the switch having a phone line running from it to a plug in the wall) showed up as a public network under the name "Unidentified network". It won't let me change the fact that it's public either(i've tried the powershell solution to that which also didn't work for some reason). So far i've tried a bunch of things to see what I can do about it but after seeing that the problem wasn't solely with the desktop i've been using (tried it with a laptop and had the same result) i'm really not sure what to do at this point other than buying another one and seeing if it works.
Some extra info that might help identify the problem:
-Wifi works fine in the house
-I've tried using TMAC and switching the Mac Add for a while but it either doesn't work or i'm not using it right
-I've used 3 different cat5 cables for the connection from the workgroup switch to the desktop
-When troubleshooting with windows, the problem is identified as not having a valid IP configuration, which i've looked and tried solutions for as well
-Manually setting the IP & DNS for IPV4 didn't work (it's currently set back to automatic after failing to fix the problem)
-DHCP is enabled
-This is what i've been using http://www.newegg.com/Product/Product.aspx?Item=N82E16833124004
-What the output of ipconfig /all looks like
Code:Windows IP Configuration Host Name . . . . . . . . . . . . : GHOSTID Primary Dns Suffix . . . . . . . : Node Type . . . . . . . . . . . . : Hybrid IP Routing Enabled. . . . . . . . : No WINS Proxy Enabled. . . . . . . . : No System Quarantine State . . . . . : Not Restricted Wireless LAN adapter Wireless Network Connection: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : NETGEAR WNA3100M N300 Wireless Mini USB dapter Physical Address. . . . . . . . . : E4-F4-C6-4C-48-8C DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes Link-local IPv6 Address . . . . . : fe80::24ab:e868:8be0:10cc%20(Preferred) IPv4 Address. . . . . . . . . . . : 192.168.1.15(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.255.0 Lease Obtained. . . . . . . . . . : Sunday, September 13, 2015 8:30:20 PM Lease Expires . . . . . . . . . . : Friday, September 18, 2015 2:10:13 PM Default Gateway . . . . . . . . . : 192.168.1.1 DHCP Server . . . . . . . . . . . : 192.168.1.1 DHCPv6 IAID . . . . . . . . . . . : 585430214 DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-14-B7-CC-10-40-61-86-71-FC- DNS Servers . . . . . . . . . . . : 192.168.1.1 NetBIOS over Tcpip. . . . . . . . : Enabled Ethernet adapter Local Area Connection 3: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : TAP-Windows Adapter V9 Physical Address. . . . . . . . . : 00-FF-7D-EA-70-00 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes Ethernet adapter Ethernet: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Intel(R) 82579V Gigabit Network Connect n #2 Physical Address. . . . . . . . . : 02-05-7A-10-79-B1 DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes Link-local IPv6 Address . . . . . : fe80::e123:fa1d:bf3f:bf5a%13(Preferred) Autoconfiguration IPv4 Address. . : 169.254.191.90(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.0.0 Default Gateway . . . . . . . . . : DHCPv6 IAID . . . . . . . . . . . : 390095238 DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-14-B7-CC-10-40-61-86-71-FC- DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1 fec0:0:0:ffff::2%1 fec0:0:0:ffff::3%1 NetBIOS over Tcpip. . . . . . . . : Enabled Tunnel adapter isatap.{61B25997-0A19-4BB7-AEA9-849452051DEE}: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Microsoft ISATAP Adapter Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes Tunnel adapter isatap.{7DEA7000-2525-41F3-80DE-9337CC0E9F68}: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Microsoft ISATAP Adapter #4 Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes Tunnel adapter isatap.{CD0A6F9F-F7BA-49F2-9B85-5A668D776B75}: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Microsoft ISATAP Adapter #2 Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes
-I can post other information if needed
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