Problem installing TMG Forefront

Hello I'm installing a Forefront TMG 2010 in a virtualized Windows 2008R2 reinstalled and completely updated .

I run the installer and all goes fine, but when It's finished and I enter to the console, I get the error: "Script error in this page".

Before installing the TMG the server was able to access internet now doesn't. But the Network icon shows "internet Access".

If it  "ping 8.8.8,8" doesn't respond. but If I ping to 192.168.26.1(my router ip) the ping respond correctly.

Any idea to go on whit the installation.

Thanks
limmontreefreeAsked:
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Suliman Abu KharroubIT Consultant Commented:
Did you add a firewall rule to allow access from localhost to the internet  (external )?
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limmontreefreeAuthor Commented:
No, I can't use the TMG console.

Thanks.

May be I need install SP1 and SP2 to the TMG?
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Suliman Abu KharroubIT Consultant Commented:
Do you have more details about this error ? event viewr ?
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limmontreefreeAuthor Commented:
Something about Route Tables but I can't access to the console to solve it.

The main problem is that I can't enter the console.

Thanks
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limmontreefreeAuthor Commented:
thanks
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