How to check firewall settings on my router?
Some routers also have firewall settings, which may block all connection requests from outside.
For example, for some models of Linksys routers, you need login and go to "Security", then "Firewall",
and check to make sure "Block Anonymous Internet Request" is disabled.
For Netgear routers, firewall default rules may also block all inbound services. From the main menu,
choose Security -> Rules, add a new rule for Inbound Services with a service name of "ANY" and an action of
"ALLOW always." Then, move your new rule up until it is the first rule in the Inbound Services section.
Finally, make certain that this rule is enabled by checking the Enable column.
For other brands and models of routers, you may check if there are similar firewall settings. If the router is set up
to block all access from the outside to the inside, you will not be able to login to your home computer(s)
from your iPhone/iPod Touch when it is on 3G or EDGE.
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