Question

You connect your computer to a wireless network available at the local library. You find that you can access all the websites you want on the internet except for two.

What might be causing the problem?
A proxy server is blocking access to the websites.
A firewall is blocking ports 80 and 443.
Port triggering is redirecting traffic to the wrong IP address.
The router has not been configured to perform port forwarding.

Answer 1

Access issues to specific websites while connected to a wireless network could be due to blocks from a proxy server or firewall, or misconfigurations such as incorrect port forwarding. A 403 ERROR indicates that the request is understood by the server, but it is not willing to authorize it.

Step-by-step explanation:

When you connect to a wireless network and find that you are unable to access certain websites, several different issues could be at play. If you are encountering a 403 ERROR on specific sites, this typically indicates a permissions issue, where the server understands the request but refuses to authorize it. This can happen for a variety of reasons, but common causes include:

• A proxy server is blocking access to the websites. Proxy servers can have specific rules that block access to certain resources.
• A firewall is blocking ports 80 and 443, which are commonly used for http and https traffic respectively. Firewalls are designed to block unauthorized access and could be set up to restrict certain websites or traffic.
• Configuration issues such as incorrect port forwarding settings on the router or network misconfigurations can also lead to access problems for specific sites or services.

It is less likely that port triggering or incorrect port forwarding rules are causing the issue as these would more commonly result in no internet access at all rather than selective website blocks.