Dear PTP550, latest version of FW, I can't find and use the frequency of 5.4ghz. What happens?
Can you post a screen shot of the radio page?
What region are you in?
Are you trying to use a 5 or 10MHz channel width?
I'm trying to use 40mhz.
I'm from Brazil. I've tried to use Brazil, Other, Other Alt... It does not open a 5.4ghz range.
What firmware are you uploading( 4.5 Beta RC61) ?