MT3000 Repeater Mode Issue with 2.4G Channel 13

Router
1

Hello,

I am seeking assistance for my MT3000 router, currently configured in Repeater Mode. The goal is a seamless handoff when the upstream router switchs its broadcasting channel, but I have encountered a peculiar sensitivity issue specifically regarding Channel 13.

The network topology in my case is like this:

(Upstream router: 2.4G Wifi, ch1~13) -> (2.4G Wifi: MT3000 repeater: 5G Wifi)->(5G Wifi: Client)

Core Phenomenon:

  1. When the MT3000 Router's WIRELESS 2.4GHz setting is OFF (5GHz Only):

    • In repeater scan mode, the MT3000 only "sees" 2.4G signals from Channel 1 to Channel 11.

    • 捕获
      捕获1078×250 6.52 KB

    • Once the upstream router switches to Channel 13, the MT3000 struggles to lock onto it, making connections drop and disappear from the scanning result.

  2. When the MT3000 Router's WIRELESS 2.4GHz setting is ON (Dual-Band Active):

    • Miraculously, the MT3000 can clearly detect Channel 13 and establish a stable connection.

    • 捕获2
      捕获21096×253 6.49 KB

    • Manually turning off the WIRELESS 2.4GHz afterwards will not break the established connection, but the connection will drop when the upstream router swichs to another channel (won’t drop at this point) and back to the Ch13 again.

    • It appears that the setting of the WIRELESS 2.4GHz signal somehow improves the MT3000's perception in repeater scan mode, allowing it to successfully identify the Channel 13 signal.

The "Chain Reaction" in Daily Usage:

My preferred setup is to keep the MT3000's 2.4GHz broadcasting off to use a pure 5GHz local network. However, when the upstream router decides to switch to Channel 13, the MT3000 loses its "lock" on Channel 13 and fails to auto-reconnect immediately.

The Current Workaround:

To achieve stability on Channel 13, I have to adopt a specific ritual:

  1. Turn ON the MT3000 router's 2.4GHz network (instantly activating the MT3000's perception);

  2. Activate the MT3000 repeater mode and connect to the upstream router;

  3. Turn OFF the MT3000's 2.4GHz;

  4. Do this again when the upstream connection is dropped.

Is this situation a bug or are there any workarounds to avoid the manual setting? Any insights would be greatly appreciated.

Thanks in advance.

2

PS:

The firmware of my device is:
Version: 4.8.1, Firmware Type: release8

It seems that this issue did not happen in the previous versions.

3

Hi

Could you clarify what the Wireless Country Code is currently set to under LuCI → Network → Wireless?

image
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image
image858×247 14.9 KB

We tested this locally on an MT3000 running v4.8.1, and devices configured with the CN country code were able to detect Channel 13 normally, regardless of whether the 2.4 GHz SSID was enabled or disabled.

2.4 GHz SSID Disabled:

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image1899×910 76.8 KB

2.4 GHz SSID Enabled:

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4

Thanks for your reply.

I have checked the location setting and it’s set to CN.

setting
setting1300×984 60 KB

Maybe a restart of the MT3000 is needed to expose the issue in a quicker way.

In my case:

  1. [Last successful setting]:

before
before1092×659 81.1 KB

wireless
wireless1080×576 18.3 KB

Repeater mode with upstream CH13 router connected
2.4G WIRELESS OFF
2. Disable the repeater mode (The repeater is still able to find CH13 for a period of time?)

disa
disa527×387 11.2 KB

Repeater mode OFF
2.4G WIRELESS OFF
3. Restart the MT3000 router
4. Enable the repeater mode, and it can only scan up to CH11 now.

after
after1092×671 86.3 KB

5

Thank you for your further clarification.

We have been able to reproduce this issue and will look into it with the R&D team.