Hi @ManyoRakov 

Could I know what the current wireless speed of TL-WR740N is?  Which is to know whether the network speed of TL-WR740N meets the usage requirements of Xiaomi Mi tv stick 4k?

In addition, how many client devices need to use the TL-WR740N network? What are the devices? If the problem occurs once Xiaomi Mi tv stick 4k joins the network, it may be because Xiaomi Mi tv stick 4k interferes with other devices or occupies a large amount of traffic, causing interference to other client devices.

If there is a router with higher performance, it may be able to improve the problem. In other words, you can consider adding a router with performance close to Archer C6U as an Access point.

Or, if you want to keep your current network settings, you can also consider powerline devices with WiFi capabilities.

However, there are environmental requirements for using powerline devices, that is, you need to ensure that the circuits of the powerline adapter and powerline extender are in the same circuit environment, so that both devices can communicate with each other through powerline in the same circuit.

For more details about powerline, please refer to:

What is Powerline?

 Hi @Joseph-TP ,

Thanks for the reply.

So I tested the speeds with the online speed tests. Generally my internet and WiFi next to the main router are 95-97 Mbps. For the AP router they are 40.51 Mbps right next to the router. And next to the TV stick (which is in an adjacent room) 35.71 Mbps. I can't move the AP ant closer to the stick. I tried a wireles bridge so that I don't depend on the cable and put the AP router right next to the stick, but that gutted the speed down to 17 Mbps.

As for other devices on the network there actually aren't any. There is the ocasional phnone, but all the people in the house have unlimited cell data, so actually the WiFi is rarely used. The main consumer of internet is likely my gaming PC, but that is on the other side of the house and actually not hooked to the WiFi but rather the modem via the Archer main router.

I could consider a better router as an AP. The main reason I'm using the TL-WR740N is I just had it. Leftover from previous years. And it did a decent enough job as an AP before everyone had unlimited cell data.

Something I noticed yesterday, as I continued trying various suggestions from youtube, reddit, you name it, was that when looking at the WiFi icon in the Mi stick UI it seemed to always go "acquiring IP address" followed by "connected" and then "saved". And then again it would go by itself "acquiring IP address".

Actually for a spell, after changing the security on the Archer from  WPA/WPA2 Personal to WPA2/WPA3 Personal and changing the channel on the TL-WR740N from Auto to 1 and the channel width from auto to 20Mhz the stick managed to play a whole 8-10 min video on YT without freezing and losing the WiFi. But I think thast might have been luck as when I tried to recreate the situation it did not repeat.

I can generally just hotspot it. As when I used my phone cell date there was no problem. This struggle is more or less now me trying to justify the existence of the access point router.

Anyway thanks for the advice, if you have any other suggestions I'll gladly hear them.