Hi all, I have many TL-WA1201 access points. They uplink from a switch. I have one that is causing me issues. I bought it last week and set it up same as any other. For its purpose the 5ghz is off and I have 1 2.4ghz wifi, all devices connect to it happily and work great, then a fair number of hours later it won't let anyone connect and says it is unable to authenticate the wifi password. Reset it and it works again then does the same again.

I'm baffled to be honest. 

Thanks in advance for any help.