rb52 my card does not work on the 5.8 GHz channels I change my plants only range 5.2-5.5Ghz! I tried with MT 3.11 and 2.9.27 (only for rehearsal)!
it’s R52. probably it’s not legal in your country. did you set wireless mode to “regulatory domain” and country to “your country” ? if yes, check “wireless info print” to see what’s allowed in your country