cnPilot E410 goes down after 1 day

Hi everyone,
I have cnPilot E410 access point when I connect it with my Mikrotik it goes down within 1 day more or less. It is accessible sometimes but not showing WIFI 2.4 and 5 GHZ both. or sometimes one of them. kindly guide me about it.
thank you
waiting for your response.

Which firmware version are you using?

Firstly it was 3.11 now I have upgraded t0 4.1.1 now issue is the same.

Please email tech-support to

Ok Thank you
I am sending an email.