Sorry for the inconvenicne you meet, below is the answer, pls kindly check:
For Step 6-7, because the app found hub after the initial pairing of HUB, but the version has been updated, the wifi will automatically upgrade the configuration, which takes about a few minutes. Therefore, you can't connect it during the period, you may not be able to search it as well even if you exit the app.
Step 9-11, lost hub which could be a lost file or a prompt from the transfer terminal when synchronizing the configuration or upgrading the remote's firmware. Of course, the misuse may also cause the unpair. You can re-pair it. Operation is as follows.
1. Open the app, Me---X1 settings ----pair with a new X1-Remote
2. Press and hold the top two keys of the remote control until pairing appears on the screen
Tips: suggest press the right button( return) first, then press the left button( off), and hold them for 5-6s, then the remote will enter pairing status.
Finally, remote control is custom 2.4G and does not require direct communication with the router. Wi-Fi in HUB, Manufacturer : Espressif Inc. Hostname: espressif