@wtct Thank you for posting in the community.

Could you please clarify some details, and then we can check whether we can figure it out?

1. What is the specific model number of the AX5400 router, and how about its hardware & firmware? Is the 5G signal and range on the router good? If the 5G signal is not good on the router, please try to modify the wireless channel on it to find a proper one in your network. You can use a Wi-Fi analyzer app to find which 5G frequency is better in your network.

2. How are the AX5400 router and the 3 RE705X placed? It is important to position the router and extender in an elevated place and/or in open areas, avoiding obstacles that will reflect or absorb signals, such as walls, metal, etc. If possible, please show me the real location of all these 4 devices, then I can help check if we need to change the location. If you're hesitant to post the picture here in the community, please email support.forum@tp-link.com.

3. Please update the firmware of all 4 devices to the latest official version.

wtct wrote

I would like to take an andventage of the EasyMesh mode, but I would like to have the possibility to pick the band manually between router and extender especially for extenders which are located futher away from the router.

 

It's obcious that the 2.4G band will work better than 5G for connection between router and repeater while the repeater is not located close enough.

 

I don't want to disable 5G band in my router.

@wtct When EasyMesh is established, you cannot choose which band the extender connects to. It selects the preferred band automatically based on data reported by the agents. To learn more about EasyMesh, please visit What is EasyMesh?.

We would like to investigate further why it isn't automatically choosing the optimal band in your network. Could you please share how the AX73 router and the 3 RE705X are placed first? Thank you.

@wtct 

wtct wrote

Hi  @Kevin_Z, let me share more info about my configuration.

 

First repeater is placed on the same floor behind the wall and door. The distance is about 6m. It picks mostly 2.4G and sometimes 5G band. I have an impresion that the 5G band is picked more offen since I extended my network with the third releater last week. Repeater is usually working fine.

 

The third repeater is located one floor below and behind a wall. The distance is about 10m from the router. It's on the same floor as the second repeater, but begind four walls. It's about 8m away from the second repeater. It always picks 5G. I have some issues with the transfer once connected to this repeater. I have no any issue once I'm extending the 2.4G range without the EasyMesh mode for this repeater.

Kevin: I assume the 5G signal has been weakened significantly once it's being put behind the wall and door. Try relocating it to an open site and moving it closer to the AX73 (if possible). You can refer to this FAQ to find the proper location to place your wireless Range Extender for optimal reception and performance.

wtct wrote

BTW, I have an impression that in the EasyMesh mode repaters are not sharing the range for each other and they are always connected directly to the router. It would be perfect to have the possibility to extend the coverage by pleacing a repeater between exisitng repeater which is located far away from the router as we can do with disabled EasyMesh mode. However, maybe I'm wrong and repeaters are sharing the range so they are connecting to the nerest WiFi source - repeater or router in the EasyMesh mode?

Kevin: In EasyMesh mode, all satellite nodes typically connect to the main router rather than the nearest extender for optimal performance. Currently, it doesn't allow users to choose the signal source manually.

wtct wrote

  @Kevin_Z 

 

Unfortunately, I can't relocate the third repeater, because I would like to take advantage of the Wi-Fi in my garage which is located 6m from my house.

 

Could you please clarify why the repeater is not picking the 2.4G band instead of 5G if the 5G is weak?

 

Other repeaters are picking 2.4/5G band randomly even they are closer to the main router. I'm not able to force third router to pick 2.4G band to improve the transfer.

 

I'm sure the 2.4G band is strong enough to achieve better results for the third router.

 

Please consider allowing manual option for band selecting for particular repeater in the EasyMesh mode. It will definitely resolve the issue.

@wtct This issue may need further investigation. Would you like to discuss it with our support engineers via email? They will be happy to investigate why the third repeater is not picking up the 2.4 GHz but is sticking to the 5 GHz signal.

Before that, we still want to have pictures of the real location of all three repeaters to better understand the situation. Could you please send it via email (support.forum@tp-link.com)?

@wtct 

To assist you and figure it out efficiently, I'll forward your case to the TP-Link support engineers, who will contact you using the email address registered to your account. Please keep an eye on your email inbox for a follow-up. Thank you.