Wifi connection lost

HI,

I have succefully installed it on my xiaomi gateway but each time it cannot connect to my wifi. I have too reset it withy putty, the 10s reset not working.

Could please help me find out the issue, I am not used to do this kind of things.

Thanks

edit; udhcpc -i phy0-sta0 seems to fix the issue, but I do not understand why :)