You will essentially be employing the WPS button for the Linksys extender setup through the process of WPS. To start it, the Linksys extender should be plugged into a power outlet. After that, you may press and release the WPS button of your Linksys extender followed by WPS button on your router. And the setup is complete, which means the device is good to go. When you apply the new settings to the extender, enter the details of the pre-existing router, including its capitalization scheme and characters. Thus, always do a check on every word and also check your user manual, as it may give you the correct details concerning your gadget. These hints will help you with the proper installation of the extender mentioned above. At the starting point of connection between the extender and router, just check for connection establishment of extender to the existing router properly; otherwise, if the connection is way far from the Linksys extender, connectivity issues might arise for sure. Check that there are no faulty connections with the cable. Sometimes compatibility issues may arise due to an outdated version. Next, check if Linksys re6700 setup is giving partial or stable signals. If all these things are correctly placed, you can easily establish the connection back.