Can you check your internet connection configuration ? (the router itself).
Try connecting your device to another network to isolate the Issue
If this did not resolve the issue, try to reset network settings :: Go to Settings > General > Reset > Reset Network Settings. This also resets Wi-Fi networks and passwords, cellular settings, and VPN and APN settings that you've used before.
Can you check your internet connection configuration ? (the router itself).
Try connecting your device to another network to isolate the Issue
If this did not resolve the issue, try to reset network settings :: Go to Settings > General > Reset > Reset Network Settings. This also resets Wi-Fi networks and passwords, cellular settings, and VPN and APN settings that you've used before.