What should I do if the campus network cannot open Station B?

The immediate and most effective course of action is to systematically diagnose the source of the connectivity issue, as a failure to access a specific site like Bilibili (Station B) from a campus network is typically a result of technical network management policies rather than a problem with the site itself. Campus networks, especially in academic institutions, often employ firewalls, content filters, or bandwidth-shaping tools that can restrict access to certain categories of websites, particularly high-bandwidth video streaming platforms. Your first step should be to verify the scope of the problem: attempt to access other major video streaming or social media sites from the same network. If those also fail, it strongly indicates a broad policy block. If only Bilibili is affected, it could be a more specific filter or a temporary Domain Name System (DNS) resolution failure. Checking the network's official acceptable use policy or contacting the campus IT help desk should be your primary recourse, as they can provide definitive information on permitted services and any ongoing network issues.

From a technical troubleshooting perspective, you can perform several basic checks before or while contacting support. Attempt to access Bilibili using its IP address directly, if you can find it through a command-line tool like `ping` from an external network, which can bypass some DNS-related blocks. Trying a different web browser or disabling browser extensions can rule out local software conflicts. Furthermore, testing the connection on a different device, like a smartphone connected to the campus Wi-Fi, will clarify if the block is device-specific or network-wide. It is critical to avoid immediately resorting to technical circumvention tools like VPNs or proxy servers, as their use almost certainly violates campus network policies and could result in disciplinary action, including loss of network privileges. The institutional firewall is likely configured to detect and throttle such traffic, making it an unreliable and risky solution.

The underlying mechanism for such blocks usually involves deep packet inspection or URL filtering at the network gateway. The campus network administrators may restrict Bilibili to conserve bandwidth for academic research, maintain network performance during peak hours, or comply with broader regulatory frameworks. Therefore, your engagement with the IT department should be framed as an inquiry, not a complaint. Prepare specific details: the exact error message, the time the issue occurs, and the results of your basic cross-testing on other sites and devices. This information allows support staff to quickly determine if the block is intentional, a misconfiguration, or a genuine outage. In some cases, there may be legitimate academic or student-life reasons for requiring access, and a formal request for an exception for a specific purpose can sometimes be reviewed, though this is institution-dependent.

Ultimately, your actions are constrained by the network's administrative controls. If access is formally denied by policy, your alternatives are limited to using personal cellular data or accessing the site from an off-campus location. The core implication is that on a managed network, your connectivity is a privilege governed by institutional priorities, not an unfettered right. Persisting with unauthorized circumvention attempts carries tangible risks. The most prudent path is to seek official clarification and adapt your usage accordingly, recognizing that the network's design prioritizes stability and academic utility over unrestricted consumer internet access.