@Madmogga Hi, welcome to our community. You may reset the router and follow the steps in the guide to troubleshoot and reconfigure the router: No internet connection when using TP-Link Wireless 4G...

@Kevin72-_ Hi, you may put the range extender near the router in the main house, and connect the extender to your router via a shorter Ethernet cable to confirm. Thank you and best reagrds.

@Lonestarbandit Hi, thanks for posting question here. Could you check the model on the label of your range extender and share us? If your PS5 is experiencing slow download speeds, here are several...

@JLmos Hi, thanks for your update. May I confirm how far you put the range extender from the router. One of my suggestions is to put the range extender near or next to the router instead of putting...

@zombietron @tpinker @arandomguy Hi, the latest firmware on the official website is 1.9.0 Build240903 instead of 1.8.0 Build230705. So it is suggested to upragde to the latest firmware to confirm...

@amarradi Hi, does the problem remain if you change another modem router? Does the problem only happen after firmware upgrade? Did you try our suggestions including firmware downgrade for comparison?...