Em primeiro lugar, isso não é um problema com a rede, isso é um problema com meu laptop.
Nos últimos meses, não consegui acessar computadores ou sites de intranet locais em sub-redes 172.x.x.x. Sou um consultor de VoIP e trabalho constantemente em várias redes corporativas e enfrentei esse problema em mais de uma rede de clientes separada.
Tanto quanto eu posso dizer nada mudou no meu laptop, e eu até fui tão longe quanto reinstalar o Windows.
Este é um exemplo do meu problema, não consigo acessar uma GUI da Web do servidor com o IP 172.23.232.22 ou qualquer outro endereço IP dessa sub-rede.
Veja algumas informações detalhadas e solução de problemas:
Ping 172.23.232.22
Pinging 172.23.232.22 with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Ping statistics for 172.23.232.22:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),
Tracert 172.23.232.22
Tracing route to 172.23.232.22 over a maximum of 30 hops
1 * * * Request timed out.
2 * * * Request timed out.
3 * * * Request timed out.
Wireless LAN adapter Wi-Fi:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Intel(R) Centrino(R) Advanced-N 6205
Physical Address. . . . . . . . . : 84-3A-4B-05-99-3A
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IPv4 Address. . . . . . . . . . . : 10.23.75.136(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.254.0
Lease Obtained. . . . . . . . . . : Thursday, January 8, 2015 9:30:56 AM
Lease Expires . . . . . . . . . . : Friday, January 16, 2015 11:23:15 AM
Default Gateway . . . . . . . . . : 10.23.74.1
DHCP Server . . . . . . . . . . . : 1.1.1.1
DNS Servers . . . . . . . . . . . : 192.168.13.24
NetBIOS over Tcpip. . . . . . . . : Enabled
Route Print
Interface List
15...00 ff 88 18 04 70 ......TAP-Windows Adapter V9
13...54 2e 81 6f 94 10 ......Check Point Virtual Network Adapter For Endpo
PN Client
12...86 3a 4b 05 99 3a ......Microsoft Hosted Network Virtual Adapter
7...20 68 9d 2a d8 5e ......Bluetooth Device (Personal Area Network)
5...84 3a 4b 05 99 3b ......Microsoft Wi-Fi Direct Virtual Adapter
4...84 3a 4b 05 99 3a ......Intel(R) Centrino(R) Advanced-N 6205
3...3c 97 0e 58 ec 4d ......Intel(R) 82579LM Gigabit Network Connection
9...00 50 56 c0 00 01 ......VMware Virtual Ethernet Adapter for VMnet1
11...00 50 56 c0 00 08 ......VMware Virtual Ethernet Adapter for VMnet8
1...........................Software Loopback Interface 1
32...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter #4
31...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter #14
44...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter #15
===========================================================================
IPv4 Route Table
Active Routes:
Network Destination Netmask Gateway Interface Metric
0.0.0.0 0.0.0.0 10.23.74.1 10.23.75.136 25
10.23.74.0 255.255.254.0 On-link 10.23.75.136 281
10.23.75.136 255.255.255.255 On-link 10.23.75.136 281
10.23.75.255 255.255.255.255 On-link 10.23.75.136 281
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
192.168.26.0 255.255.255.0 On-link 192.168.26.1 276
192.168.26.1 255.255.255.255 On-link 192.168.26.1 276
192.168.26.255 255.255.255.255 On-link 192.168.26.1 276
192.168.164.0 255.255.255.0 On-link 192.168.164.1 276
192.168.164.1 255.255.255.255 On-link 192.168.164.1 276
192.168.164.255 255.255.255.255 On-link 192.168.164.1 276
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 10.23.75.136 281
224.0.0.0 240.0.0.0 On-link 192.168.26.1 276
224.0.0.0 240.0.0.0 On-link 192.168.164.1 276
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 10.23.75.136 281
255.255.255.255 255.255.255.255 On-link 192.168.26.1 276
255.255.255.255 255.255.255.255 On-link 192.168.164.1 276
===========================================================================
Persistent Routes:
None
IPv6 Route Table
Active Routes:
If Metric Network Destination Gateway
1 306 ::1/128 On-link
11 276 fe80::/64 On-link
9 276 fe80::/64 On-link
9 276 fe80::967:4aa2:ae4b:3c55/128
On-link
11 276 fe80::50c9:810b:5d06:c4a5/128
On-link
1 306 ff00::/8 On-link
9 276 ff00::/8 On-link
11 276 ff00::/8 On-link
===========================================================================
Persistent Routes:
None
Alguma idéia?
Tags networking windows-8.1