I am using EGI Net Amps 300 with current Net Station 5 software.

I have collected data as before with 256ch Hydrocel GSN 256 Nets.

But, suddenly, after I change the Net to different size, the amplifier recognizes it as 32ch Microcel GSN 100 32.

I changed all Nets I have, but same results.

It seems something wrong with NA300 (Since I changed recording machine, changed version of Net Station, updated OS... but the issue not resolved....)

If anybody faced same problem, please let me know your experience.