How to make TP-Link router ping-able

How to make TP-Link router ping-able Disable Firewall and SPI  : How to Modify ACL : Best regards,

500 Internal Server Error

Internal Server Error

The server encountered an internal error or misconfiguration and was unable to complete your request.

Please contact the server administrator at [email protected] to inform them of the time this error occurred, and the actions you performed just before this error.

More information about this error may be available in the server error log.