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Cannot access certain website via network (Firewall issue)

Tags:
  • Firewalls
  • Switch
  • Networking
Last response: in Networking
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January 17, 2013 5:32:21 PM

We have been noticing a strange issue since upgrading to Comcast Business with a new Motorola 6580 modem/router:
certain common websites can no longer be accessed via the network (although they load fine when accessed via smartphone 3/4G)

I already did some reading on the subject and it looks like the Firewall is to blame:
when I switch Firewall to "Off", everyone can access the websites ok,
as soon as I switch Firewall back to "Low" - no more website access.

Question: is there any workaround for this issue other than turning off the Firewall?
There are various office computers on this network, would hate to make the network vulnerable to attacks without a Firewall.

More about : access website network firewall issue

January 18, 2013 7:26:42 PM

Comcast's forums state that a firmware upgrade should alleviate issues with firewall performance.

check you are running the latest firmware
check logs to see what reason for blocking is.
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