Tuya device off line in router

Hello all that may have problems that a device doesn’t show up in your router and therefor not in your Home Assistant.
Some Tuya devices are extremely sensitive to the band width channel selection. I had my router ASUS AX92U mesh on asuswrt-merlin on the 20/40 Mhz selection and I had (for a complete other reason) to set it to 20 Mhz and all of a sudden a Tuya device (irrigation time control device) that never has been visible on my router or on Home Assistant became visible.
Since it was quite a happy day for me, I thought I can’t be the only one having (had) this problem, so maybe someone is helped. Happy days, Roger

channel band width

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