Why won't iTunes connect to the iTunes store?

Question

My iTunes software won't connect with the online store. When I click 'Help' from iTunes sw it says I'm not connected to the internet. How to correct?

Answer 1

Dave,
Just got back into town. Obliged for your help. Here is what diagnostics said:
Microsoft Windows 7 x64 Home Premium Edition Service Pack 1 (Build 7601)
Dell Inc. Inspiron 560
iTunes 10.5.1.42
QuickTime not available
FairPlay 1.13.36
Apple Application Support 2.1.5
iPod Updater Library 10.0d2
CD Driver 2.2.0.1
CD Driver DLL 2.1.1.1
Apple Mobile Device 4.0.0.97
Apple Mobile Device Driver 1.57.0.0
Bonjour 3.0.0.10 (333.10)
Gracenote SDK 1.9.5.502
Gracenote MusicID 1.9.5.115
Gracenote Submit 1.9.5.143
Gracenote DSP 1.9.5.45
iTunes Serial Number 0014B2D4033CBBC0
Current user is not an administrator.
The current local date and time is 2011-11-28 16:06:48.
iTunes is not running in safe mode.
WebKit accelerated compositing is enabled.
HDCP is not supported.
Core Media is supported.
Video Display Information
Intel Corporation, Intel(R) G45/G43 Express Chipset
Intel Corporation, Intel(R) G45/G43 Express Chipset
**** External Plug-ins Information ****
No external plug-ins installed.
**** Network Connectivity Tests ****
Network Adapter Information
Adapter Name:    {F0D8E208-9CF1-4678-B24A-51FBBA85B85B}
Description:    Realtek PCIe GBE Family Controller
IP Address:    192.168.1.100
Subnet Mask:    255.255.255.0
Default Gateway:    192.168.1.1
DHCP Enabled:    Yes
DHCP Server:    192.168.1.1
Lease Obtained:    Mon Nov 28 15:58:32 2011
Lease Expires:    Tue Nov 29 15:58:32 2011
DNS Servers:    209.18.47.61
        209.18.47.62
Active Connection:    LAN Connection
Connected:    Yes
Online:        Yes
Using Modem:    No
Using LAN:    Yes
Using Proxy:    No
SSL 3.0 Support:    Enabled
TLS 1.0 Support:    Enabled
Firewall Information
Windows Firewall is on.
iTunes is NOT enabled in Windows Firewall.
Connection attempt to Apple web site was successful.
Connection attempt to browsing iTunes Store was successful.
Connection attempt to purchasing from iTunes Store was successful.
Connection attempt to iPhone activation server was successful.
Connection attempt to firmware update server was successful.
Connection attempt to Gracenote server was successful.
Last successful iTunes Store access was 2011-11-28 16:00:27.
**** CD/DVD Drive Tests ****
No drivers in LowerFilters.
UpperFilters: GEARAspiWDM (2.2.0.1),
D: TSSTcorp DVD+-RW TS-H653G, Rev DW10
Audio CD in drive.
Found 12 songs on CD, playing time 51:11 on Audio CD.
Track 1, start time 00:02:00
Track 2, start time 04:24:66
Track 3, start time 08:05:65
Track 4, start time 12:09:33
Track 5, start time 15:20:72
Track 6, start time 19:49:63
Track 7, start time 24:49:18
Track 8, start time 27:57:57
Track 9, start time 32:50:42
Track 10, start time 39:10:24
Track 11, start time 43:21:01
Track 12, start time 47:49:39
Audio CD reading succeeded.
Get drive speed succeeded.
The drive CDR speeds are:   4 8 16 24 32 40 48.
The drive CDRW speeds are:   4.
The drive DVDR speeds are:   4.
The drive DVDRW speeds are:   4.
**** Device Connectivity Tests ****
iPodService 10.5.1.42 (x64) is currently running.
iTunesHelper 10.5.1.42 is currently running.
Apple Mobile Device service 3.3.0.0 is currently running.
Universal Serial Bus Controllers:
Intel(R) ICH10 Family USB Universal Host Controller - 3A34.  Device is working properly.
Intel(R) ICH10 Family USB Universal Host Controller - 3A35.  Device is working properly.
Intel(R) ICH10 Family USB Universal Host Controller - 3A36.  Device is working properly.
Intel(R) ICH10 Family USB Universal Host Controller - 3A37.  Device is working properly.
Intel(R) ICH10 Family USB Universal Host Controller - 3A38.  Device is working properly.
Intel(R) ICH10 Family USB Enhanced Host Controller - 3A3A.  Device is working properly.
Intel(R) ICH10 Family USB Enhanced Host Controller - 3A3C.  Device is working properly.
No FireWire (IEEE 1394) Host Controller found.
Most Recent Devices Not Currently Connected:
iPod shuffle (2nd Generation) running firmware version 1.0.4
Serial Number:    4H750VLTYX6
**** Device Sync Tests ****
No iPod, iPhone, or iPad found.