Hello, friend!
Check whether the device model is correct. Enterprise and carrier networks do not have EG8347HS devices.
Analyzed the ONT web page and found that the primary DNS server and secondary DNS server were disabled in the following situations:
1. The login user does not have the right to display the configuration. The ONT administrator account and password are required to log in to the ONT.
(We cannot provide the administrator account and password due to the forum restrictions. Contact the ISP to obtain the administrator account and password.)
2. ONT is customized by carriers. Therefore, this function is prohibited according to carriers' requirements.
If you cannot configure the DNS service on the web page, you can change the node in the VSA profile of the U2000 to configure the DNS service for the ONT.
</LANEthernetInterfaceConfig>
<LANHostConfigManagement X_HW_DHCPOption82Enable="0" X_HW_PPPoEPITPEnable="0" X_HW_DNSList="8.8.8.8">
<IPInterface MaxNumber="2" NumberOfInstances="0"/>
</LANEthernetInterfaceConfig>
<LANHostConfigManagement X_HW_DHCPOption82Enable="0" X_HW_PPPoEPITPEnable="0" X_HW_DNSList="8.8.8.8","9.9.9.9">
<IPInterface MaxNumber="2" NumberOfInstances="0"/>
Find the node and manually add X_HW_DNSList="8.8.8.8".
If the product is customized by a carrier, the node is changed and cannot be found.
Thanks!