Internet blocked on port 80

[Locans]

If I connect to a https:\\ or an ftp:\\ it will connect. I am using a
Sonicwall security device on the internet. If I connect to the Sonicwall
using http:\\(ipaddress) it won't connect, if I use https:\\(ipaddress) it
connects. I have the Windows firewall disabled via group policy on the 2003
SERVER. This only happens on two computers on a network of 15. I have tried
both the "netsh winsock reset catalog" and the "Sfc /Scannow", neither has
worked. Since the other computers work fine it can't be my Sonicwall. Is
anyone aware of any virus or spyware that would work like a firewall to block
port 80? I have also installed Wireshark on the computer having the problem
and monitered the network. No data is sent to the NIC if http:\\ is used, if
https:\\ is used packets are received on wireshark. Something is blocking
data being sent on port 80.

 

[smlunatick]

If I connect to a https:\\ or an ftp:\\ it will connect.  I am using a
Sonicwall security device on the internet.  If I connect to the Sonicwall
using http:\\(ipaddress) it won't connect, if I use https:\\(ipaddress) it
connects.  I have the Windows firewall disabled via group policy on the2003
SERVER.  This only happens on two computers on a network of 15.  I have tried
both the "netsh winsock reset catalog" and the "Sfc /Scannow", neither has
worked.  Since the other computers work fine it can't be my Sonicwall.  Is
anyone aware of any virus or spyware that would work like a firewall to block
port 80? I have also installed Wireshark on the computer having the problem
and monitered the network.  No data is sent to the NIC if http:\\ is used, if
https:\\ is used packets are received on wireshark.  Something is blocking
data being sent on port 80.

Sonucwall is an advanced business grade router with a true firewall.
You need to make sure that the IP address "range" that the PCs are
permitted to access the Internet. Several firewall rules can be set
up which will limit access.