I have a customers Draytek 2820 router, Firmware Version: 3.3.3_232201.

Each time I select any index on the NAT >> Open Ports page, I get the following error message from the NAT >> Open Ports >> Edit Open Ports page.

Code:

msg = ReferenceError: OP_blEnable is not defined url = https://IP_ADDRESS/doc/MNatEop.htm line = 1

After entering the relevant information and pressing OK, the following error message.

Code:

msg = ReferenceError: OP_iAppIdx is not defined url = https://IP_ADDRESS/doc/MNatEop.htm line = 1

Does anybody know what is causing this issue?