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Having trouble with a particular website

We are having an issue accessing a particular website - nj.gov - nothing special, just a government page for state of New Jersey.  Whenever the address is put into a browser, be it IE or Chrome, the page times out before it loads.

What we've tried...

page address with and without www
page address with and without HTTPS
added page as a trusted site locally on machine
added page to whitelist in Sonicwall TZ215 firewall
added page to whitelist in Barracuda Web Filter
tried connecting via laptop connected wirelessly to network

However, what DID work, was connecting laptop wirelessly to a nearby xfinitywifi hotspot, or accessing with a smart phone NOT connected to local wireless network.

Which leads to there being something within our network blocking/delaying access to this site from both our NJ and PA gateways.  I'm zoning out however on what else it could be.  Not to mention that I was told people WERE accessing the site as recently as Friday afternoon...so something happened over the weekend?

Thoughts anyone?
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J4sstrom
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J4sstrom
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3 Solutions
 
Sean JacksonInformation Security AnalystCommented:
I'd start looking at the logs on your firewall, to see if the traffic is getting that far (or whatever other terminating services you might have in place).

From what you're describing, it seems like something is shutting you down from your public IP.  If it's not being blocked internally, perhaps you've been blocked from their side. What would cause this? Someone caused too much traffic originating from your IP, which put your IP on their blocked list.
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jcimarronCommented:
J4sstrom--
Site works fine for me.
Was the laptop that worked wirelessly to xfinity the same machine that is having the problem?
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J4sstromAuthor Commented:
Yes, the site is up...its when any system within our local network tries to access it, it times out.  Only tried one laptop to xfinity hotspot, but it connects fine, assume other systems would also.

Sean, anything in particular I should be looking for within the firewall log?  I ran both of our gateway IP's through the blacklist check on mxtoolbox, not hits there.
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Sean JacksonInformation Security AnalystCommented:
I'm pretty confident that someone in your network generated too much traffic too quickly, and you've been blacklisted by their firewalls. Contact their administrator to find out if I'm correct.
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carlmdCommented:
FYI, I started having a similar problem with the nj.gov web sites. They won't work in IE or Chrome, but I found that they do work in Firefox. I have not taken the time to figure this out, but thought you could use the work around.
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J4sstromAuthor Commented:
Seems the site is back without issue.  I never got a response from the Office of Information Technology, but all SEEMS ok now.  Thanks for taking a few minutes to address with me.
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jcimarronCommented:
J4sstrom--
Glad to have been of help.
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Sean JacksonInformation Security AnalystCommented:
J4sstrom, glad it's working. Feel free to hit me up with any other InfoSec questions you might have. Thanks for the points.
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