WSUS 3.0 client computers not populating WSUS console

I have no computers populating the console of WSUS. I have no firewall or
proxy settings. I have redone the Group policy to ensure that it is set up
correctly. Any help would be appriciated. Thanks

Is this a cloned machine?
copy the following to a text file and save it as a batch file then run it on
the affected machines

net stop wuauserv
reg delete HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate /v
AccountDomainSid /f
reg delete HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate /v
PingID /f
reg delete HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate /v
SusClientId /f
net start wuauserv
wuauclt /resetauthorization /detectnow
gpupdate/force /boot

No, none of the machines are cloned.

You already asured the Group Policy got applied on the clients? Try a
"rsop.msc" on a client in Start->Run. Does the policy show up?

Check if the GPO is correctly configured and its being applied if it does,
then you can try the batch provided.

[Beklimes]

One key issue I haven't seen answered for an issue like this with GPOs:

Where MUST the WSUS edits be done in the GPO?
Must is be the Computer- Default Domain Polcy?
Or can it be an =OU - sub GPO??

Try using a news client, such as Forte Agent, Thunderbird, or even Outlook
Express, instead. It's a lot easier to do nearly everything that way. You
can mark messages to be watched, filter the views so you can see replies to
your posts easily, and search.

The Microsoft public news server is msnews.microsoft.com and you can
subscribe to as many groups as you like; no authentication is required.

GPOs have to be linked to an OU where the user or computer account is located.
Do NOT change the both Default policies, better create a new one and link
it to the needed level. In case of bigger problems you can go back to the
default with unlinking/deleting self-created GPOs and just having the defaults
in place.

For the problem of the OP described earlier, which is not readable here,
i fully agree with Lanwench.