Thanks for the help.

I have windows vista btw.
My ISP is Optus, I think.
Modem: SIMENS SpeedStream 4200
Router: Belkin Wireless G router (model no.: F5D7230-4)
Wireless
By the way, I was wondering..where do you find the encryption used?

Windows Vista Home Basic SP1
Firefox and Opera usually, sometimes just Opera, or sometimes just Firefox
& the description of problem is in the first post
CMD Message:
Microsoft Windows [Version 6.0.6001]
Copyright (c) 2006 Microsoft Corporation. All rights reserved.
C:\Users\dell>PING 206.190.60.37
Pinging 206.190.60.37 with 32 bytes of data:
Reply from 206.190.60.37: bytes=32 time=285ms TTL=51
Reply from 206.190.60.37: bytes=32 time=283ms TTL=51
Reply from 206.190.60.37: bytes=32 time=286ms TTL=51
Reply from 206.190.60.37: bytes=32 time=286ms TTL=51
Ping statistics for 206.190.60.37:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 283ms, Maximum = 286ms, Average = 285ms
C:\Users\dell>PING yahoo.com
Pinging yahoo.com [206.190.60.37] with 32 bytes of data:
Reply from 206.190.60.37: bytes=32 time=284ms TTL=51
Reply from 206.190.60.37: bytes=32 time=286ms TTL=51
Reply from 206.190.60.37: bytes=32 time=283ms TTL=51
Reply from 206.190.60.37: bytes=32 time=287ms TTL=51
Ping statistics for 206.190.60.37:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 283ms, Maximum = 287ms, Average = 285ms
C:\Users\dell>NBTSTAT -n
Local Area Connection:
Node IpAddress: [0.0.0.0] Scope Id: []
No names in cache
Bluetooth Network Connection:
Node IpAddress: [0.0.0.0] Scope Id: []
No names in cache
Wireless Network Connection:
Node IpAddress: [192.168.2.3] Scope Id: []
NetBIOS Local Name Table
Name Type Status
---------------------------------------------
DELL-PC <00> UNIQUE Registered
WORKGROUP <00> GROUP Registered
DELL-PC <20> UNIQUE Registered
C:\Users\dell>IPCONFIG /ALL
Windows IP Configuration
Host Name . . . . . . . . . . . . : dell-PC
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : Belkin
Ethernet adapter Bluetooth Network Connection:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Bluetooth Device (Personal Area Network)
Physical Address. . . . . . . . . : 00-22-69-BD-80-FD
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Wireless LAN adapter Wireless Network Connection:
Connection-specific DNS Suffix . : Belkin
Description . . . . . . . . . . . : Dell Wireless 1395 WLAN Mini-Card
Physical Address. . . . . . . . . : 00-23-4D-65-5D-4B
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::e071:c75:e091:8176%12(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.2.3(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : Saturday, 11 April, 2009 1:53:17 PM
Lease Expires . . . . . . . . . . : Tuesday, 18 May, 2145 8:46:20 PM
Default Gateway . . . . . . . . . : 192.168.2.1
DHCP Server . . . . . . . . . . . : 192.168.2.1
DNS Servers . . . . . . . . . . . : 192.168.2.1
NetBIOS over Tcpip. . . . . . . . : Enabled
Ethernet adapter Local Area Connection:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Broadcom NetLink (TM) Fast Ethernet
Physical Address. . . . . . . . . : 00-22-19-CE-CD-DE
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Tunnel adapter Local Area Connection* 6:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : isatap.{C581E7EF-5D72-4C85-9848-CCFDCFA2F
945}
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Tunnel adapter Local Area Connection* 7:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
Physical Address. . . . . . . . . : 02-00-54-55-4E-01
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv6 Address. . . . . . . . . . . : 2001:0:cf2e:3096:c79:3ba7:3f57:fdfc(Prefe
rred)
Link-local IPv6 Address . . . . . : fe80::c79:3ba7:3f57:fdfc%10(Preferred)
Default Gateway . . . . . . . . . : ::
NetBIOS over Tcpip. . . . . . . . : Disabled
Tunnel adapter Local Area Connection* 12:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : isatap.{72C3A5AA-E681-4CA4-86F0-15714E688
97F}
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Tunnel adapter Local Area Connection* 13:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : Belkin
Description . . . . . . . . . . . : isatap.Belkin
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
C:\Users\dell>