Hello @JAxCk , Welcome to our community. Please confirm that you have set the Access Point mode correctly: TL-WA855RE(EU)_V4_User Guide (From page 20) Please follow the below steps to do the...

@Vinay_Dahiya-24 , If you are unable to set up the extender, please refer to What should I do if I fail to configure TP-Link Range Extender?

@Andeng , If you are unable to set up the extender, please refer to What should I do if I fail to configure TP-Link Range Extender?

Hello @Fabien146255 , The Wireless Standards of the RE700X is: • IEEE 802.11a/n/ac/ax 5GHz • IEEE 802.11b/g/n/ax 2.4GHz As for specific performance, it depends on your actual environment. Can I know...

@RASMI , If you failed to set up the extender, please refer to What should I do if I fail to configure TP-Link Range Extender?

@Jahir89 , When you update the firmware, please confirm the network is stable. You can try to install it again: Archer AX12(EU)_V1_1.1.28 Build 20250523.