Dell Sonic Wall NSA-2600 / Suntrust Website

I have discovered this weird issue.  We have a Dell Sonic Wall NSA-2600 Firewall / Router Installed.  We discover an issue when we try to navigate to www.suntrust.com and it says the site can't be displayed.  This appears to happen randomly but if we reboot the Sonic Wall NSA-2600 we can access www.suntrust.com for a short period of time before it won't allow access any longer.  

We have checked switch settings, dns server responses, etc.  

Can't figure this one out and any help would be greatly appreciated.  

Thanks,
Thomas
tmisincoAsked:
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MikeIT ManagerCommented:
Do you have any web-filtering policies enabled?
0
tmisincoAuthor Commented:
Shadowless,

No web filtering policies enabled.

Thanks
Thomas
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MikeIT ManagerCommented:
When you can't access the website, have you tried to ping it by FQDN (ie. ping www.suntrust.com)?
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tmisincoAuthor Commented:
Yes it is really weird.  I think it us something in the NAT translations because when this is happening from the workstations it is not happening on the server.  The only difference is that the server has a dedicated public IP address.
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StolsieCommented:
your server should still have a private address behind your firewall
server ip 192.168.0.1
NAT
192.168.0.1 => 24.154.21.33 LAN to WAN
24.154.21.33 => 192.168.0.1 WAN to any
firewall rule
LAN to WAN 192.168.0.1 => any IP - HTTP
WAN to LAN any IP - HTTP => 24.154.21.33
0

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