You may need to move to at least 25.1
From Change log that may impact you:
- Miscellaneous radio stability and interoperability fixes (MR42/MR52/MR53/MR84)
Also, are you over 1000 clients? If so 25.6 may be of interest:
- Traffic routing improvements to reduce overhead on Ap resources when 1000+ clients are connected to the network
I'm not a fan of running Beta, but it seems Meraki has been slow to release "stable" lately for both AP's and Security Appliances. I'm running the latest betas in a 16 site environment.