internet acces over LAN

[leni1024]

Hello,
in our company was done a server update and ever since I can't access some websites over LAN. I get on to google, get results from google fine and quick but when I click on chosen link it takes forever to load and eventually the page times out. However I can get on my banking site (and its sub links) with no problems.
Everything is working fine with wireless or 3G connection (different address range). We are VPN users as well.
I run ip config with this results:
Windows IP Configuration
Host Name . . . . . . . . . . . . : hostname
Primary Dns Suffix . . . . . . . : companyname.com
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : companyname.com

Ethernet adapter Local Area Connection 2:
Connection-specific DNS Suffix . : companyname.com
Description . . . . . . . . . . . : Broadcom NetXtreme 57xx Gigabit Controller
Physical Address. . . . . . . . . : 00-1D-09-**-B5-**
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : xxx.xx.1.106
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : xxx.xx.1.1
DHCP Server . . . . . . . . . . . : xxx.xx.1.20
DNS Servers . . . . . . . . . . . : xxx.xx.1.20
Primary WINS Server . . . . . . . : xxx.xx.1.20
Lease Obtained. . . . . . . . . . : 28 October 2008 08:24:17
Lease Expires . . . . . . . . . . : 31 October 2008 08:24:17

Ethernet adapter Wireless Network Connection:
Connection-specific DNS Suffix . : companyname.com
Description . . . . . . . . . . . : Intel(R) PRO/Wireless 3945ABG Network Connection
Physical Address. . . . . . . . . : 00-**-BF-74-**-C3
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : xxx.xx.4.101
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : xxx.xx.4.1
DHCP Server . . . . . . . . . . . : xxx.xx.1.20
DNS Servers . . . . . . . . . . . : xxx.xx.1.20
Primary WINS Server . . . . . . . : xxx.xx.1.20
Lease Obtained. . . . . . . . . . : 28 October 2008 08:25:41
Lease Expires . . . . . . . . . . : 05 November 2008 08:25:41

Ethernet adapter {F1C4EDDC-BE3C-46F2-A74E-47253EF65BB4}:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Nortel IPSECSHM Adapter - Packet Scheduler Miniport
Physical Address. . . . . . . . . : 44-45-**-54-**-00
Dhcp Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 0.0.0.0
Subnet Mask . . . . . . . . . . . : 0.0.0.0
Default Gateway . . . . . . . . . :
DNS Servers . . . . . . . . . . . : xxx.xx.1.20

PPP adapter 3G Connection:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : WAN (PPP/SLIP) Interface
Physical Address. . . . . . . . . : 00-53-**-00-**-00
Dhcp Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : yy.yy.yy.63
Subnet Mask . . . . . . . . . . . : 255.255.255.255
Default Gateway . . . . . . . . . : yy.yy.yy.63
DNS Servers . . . . . . . . . . . : yy.yyy.yy.68
Primary WINS Server . . . . . . . : yy.yy.yy.13
Secondary WINS Server . . . . . . : yy.yy.yy.14
NetBIOS over Tcpip. . . . . . . . : Disabled

Any suggestions what to check?

Many Thanks

[johnwill]

With absolutely no useful information in the IPCONFIG, I have no idea.