Verify the DNS server settings on your router and individual devices.
From a connected device (if possible), try pinging an IP address directly (e.g., ping 8.8.8.8) and then a domain name (e.g., ping google.com).
Check the status lights and battery levels of all UPS units powering network equipment.
Verify if the entire building or office area has power.
Attempt a controlled reboot of the primary network devices, starting with the modem/router.
Visually inspect the main router, switch, and firewall for any signs of power loss or error indicators.
Visit the ISP's website or social media for official status updates.
Call your internet service provider to inquire about any reported outages in your area.
If access points are several years old, consider replacing them with newer, more capable models that support modern Wi-Fi standards.
Ensure all Wi-Fi access points and routers have the latest firmware installed, as updates often fix bugs and improve performance.
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While the VPN connection may appear active, it might not be correctly routing traffic to internal company resources, or there could be a split-tunneling configuration issue.
The 'access denied' error strongly suggests an authentication or authorization problem, meaning your credentials might be incorrect or your account lacks the necessary permissions for the resources.
Your local network firewall, or a firewall on the company's end, might be blocking the specific ports or protocols required to access internal servers.
The internal servers or shared drives themselves might be experiencing downtime, undergoing maintenance, or have specific access control lists that are misconfigured.
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