If you are doing the extender login process for the first time, you might face some difficulties during that. There can be the wrong login credentials that you used while logging in to your device or any mistakes. Here, another case can be the weak or no connectivity between your device, extender, and router. The login portal might not be accessible to you due to faulty web and IP addresses of the extender. To overcome these errors, we recommend you check the manual setup guide of the extender first. Get the default and accurate Linksys extender login details from there and ensure to type them perfectly. Later, check the connection strength between all devices and make a wired connection if you want a stable connection. Then, keep in mind to insert the web or IP address faultlessly and use an alternative if any of them have an error.