Use the WPS process for the Linksys extender setup by employing a WPS button. To start the process, put your extender into the power outlet. Therefore, hold and then leave the WPS button on your extender and the router as well. The setup is complete here which signifies the device. Make sure you are using the correct details of the device, while entering the details of the pre-existed router and then feed them. The router's details are case-sensitive and contain characters. So, check every word before, and also make sure that you check the user manual. It can alert you to the correct details of your gadget. For a good setup of the extender see the steps below. On the start-up of the extender and router connection, just check if the extender is connected to the existing router properly. In addition, If the router is far from the Linksys extender; There will be chances of connectivity issues for sure. Check whether there are no issues with the cable connections. Occasionally an outdated version could also cause these issues. After that, check if the Linksys re6700 setup is partial or stable. If all these settings are right then you will easily get the connection back.