This has been one of the strangest issues I’ve encountered with my network setup. My router (ER7206) is connected to the internet, and while I can access certain sites without issue, others remain consistently blocked. Just to clarify, these aren’t FTP sites or high-security sites that would typically trigger any sort of access restrictions. In fact, one of the blocked sites is a portal I use regularly to pay my monthly bills—something I used to access without trouble until a few weeks ago.

I’ve double-checked all configurations and confirmed there are no blocked IPs or specific restrictions in the setup that would prevent access to these sites. As a troubleshooting step, I even created a rule to allow access to blocked sites from a specific PC IP, but that didn’t help either. Oddly, there are times when the problem temporarily resolves itself, and I’m able to access all sites as usual. But before long, the issue returns, blocking certain websites once again.

This intermittent connectivity to specific sites has made it difficult to identify a clear cause or consistent pattern, leaving me at a bit of a loss for the next steps to resolve it. Any insights or advice on what might be causing this would be greatly appreciated!