Public hot-spot not providing IP when connecting

I am trying to access the internet by connecting to a public "xfinitywifi" hot-spot. I can connect, but it doesn't give me an IP address. I have tried 2 different computers and my phone. (My phone gets as far as "Obtaining IP address..." and then it disconnects.) I have 3-4 bar signal strength.

Here's the the relevant information from my laptop:

Screenshots of Network and Sharing Center, Wireless Network Connection Status, and Network Connection Details windows.

ipconfig:

Microsoft Windows [Version 6.1.7601] Copyright (c) 2009 Microsoft Corporation. All rights reserved. C:\Users\Stretch>ipconfig /all Windows IP Configuration Host Name . . . . . . . . . . . . : StretchsLappy Primary Dns Suffix . . . . . . . : Node Type . . . . . . . . . . . . : Hybrid IP Routing Enabled. . . . . . . . : No WINS Proxy Enabled. . . . . . . . : No Ethernet adapter Local Area Connection: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Atheros AR8152/8158 PCI-E Fast Ethernet Controller (NDIS 6.20) Physical Address. . . . . . . . . : **-**-**-**-**-9A DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes Wireless LAN adapter Wireless Network Connection: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Broadcom 802.11n Network Adapter Physical Address. . . . . . . . . : **-**-**-**-**-F1 DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes Link-local IPv6 Address . . . . . : fe80::d42f:27bb:bfe:68bd%11(Preferred) Autoconfiguration IPv4 Address. . : 169.254.104.189(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.0.0 Default Gateway . . . . . . . . . : DHCPv6 IAID . . . . . . . . . . . : 238574073 DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-22-62-2C-A6-38-59-F9-C1-19-F1 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.{249E9D16-2CB8-4CED-B707-65C74318B56E}: 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 C:\Users\Stretch>ping 8.8.8.8 Pinging 8.8.8.8 with 32 bytes of data: PING: transmit failed. General failure. PING: transmit failed. General failure. PING: transmit failed. General failure. PING: transmit failed. General failure. Ping statistics for 8.8.8.8: Packets: Sent = 4, Received = 0, Lost = 4 (100% loss) 

If there is any more information that would be helpful let me know. Thanks for any help.