I had to open a case with Meraki TAC.   The only thing they told me was that it was a known issue.   But they still didn't know which version it would be resolved in.   So they made an adjustment in the backend but they never told me what it was.   Since that moment the problem has not occurred again. ... View more

HUAWEI E8372 USB stick works great with MX64 and most APs, even Z3. I mostly use it a cellular backup. Private APN configuration is made on the modem itself and connectivity should be tested on a PC before deploying on the MX. ... View more

@PhilipDAth it looks like it had something to do with the flow preferences. If configured for using WAN1 and failover if "poor performance" it wouldn't let the traffic to pass through.   As soon as I removed the flow preferences, I was able to access everything. Looks like it was trying to failover to WAN2, ignoring the cellular interface and the fact that WAN2 interface was also down.   I am still working on the details ... View more

Thanks again! ... View more