Check if the internet service provider is not thrifting invariably. Before purchasing any device also make sure the several ISPs have restrictions on the electronic equipment. But, some problems still have to be compelled to be solved. On a general basis, your routers might not be compatible with the modems for sure. Just check the Wavlink device’s compatibility with the Wavlink AC600 setup. You are not able to do anything if the device is unable to work properly. As this is generally not in your hands. The internet provider is there to help the customer so connect with the suppliers on the call or through the portal. Yes, you can connect to the internet supplier through the portal by typing, wifi.wavlink.com and just entering the portal. Or try to reach the provider through the chat box. Although the service provider does not provide any guarantee card with the product. But if you are facing an issue then you can ask for ṭhe help.