Wireless Joint

I'm experiencing intermittent modem drop outs after the initial connection. Upon startup, the modem will eventually connect, but it takes a few attempts. Hardware is WG1608 running 12-2-2020 Rooter f/w with an EM7565 running the Generic SWI9X50C_01.08.04.00 (latest) firmware. Protocol is QMI (almost bricked the modem trying to change to MBIM). I'm able to reproduce the "Can't open device..." message any time I enter the command, "AT!LTECA?" into Modem>Miscellaneous>AT-Command Terminal.

Let me know if you have any suggestions or need additional info.

Thanks!

Fixed the issue by setting the modem to use the Generic firmware. Now, it looks like carrier aggregation is not working. When I run AT!LTECA? it says not implemented. I"m currently locked to bands 4, 13 and 66. Would switching to MBIM make any difference? I figured how to issue the right USBCOMP command to maintain AT command ability.

Switching to MBIM did the trick. Can confirm latency is generally higher on Verizon with MBIM.

Thank you for following up. Though it seems none had help for you, your information follow up will help others.