We're experiencing the same issues with the MX75 for one of our clients. A few months ago, we had seen the same issues at a different client. We had to RMA the device a few times before finally getting an MX75 that didn't have these issues. Firmware updates made no difference in our case.   For the problematic MX75 we're working with right now, the first replacement we received was even worse than the original. Lasting less than 24 hours before it went offline again. We're working with Meraki support on it, but I think we're going to avoid this model moving forward. ... View more