@ValiPrinter Hi, As per the product user guide, no, it doesn't support Printer Server: https://static.tp-link.com/2020/202011/20201116/1910012751_Archer%20C4000_UG_REV3.2.0.pdf

@Peat Hi, I have tried to explain why this happens in another thread, please check: No changing 2.4ghz to 5ghz You can try to disable the Smart Connect and create different SSIDs for the 5GHz and...

@Karakanov Hi, I have tried to explain why this happens in another thread, please check: No changing 2.4ghz to 5ghz You can try to disable the Smart Connect and create different SSIDs for the 5GHz...

@YuvarajNJ Hi, You cannot change it from 2.4GHz to 5GHz, because TL-WR840N is a Wi-Fi 4 router, which wireless standard is IEEE 802.11n/b/g 2.4 GHz only. You will need to buy a 802.11 ac router in...

@Sandyman0_1 Hi, I would suggest upgrading the router firmware to the latest version first, then observe if the issue persists. If the 5GHz still drops, you may try to modify the 5GHz channel and...

@User123536 Hi, If that is the case, you may contact TP-Link support as suggested by Kevin in the thread that I linked. Do remember to provide the requested details for further analysis.