Region : Hong Kong

Model : TL-MR3220

Hardware Version : V2

Firmware Version : 3.14.9 Build 140319 Rel.38485n

ISP : 1010

I've the USB modem of MF821 LTE. However, I've found it's keep disconnected as well as show unplugged in system log in TL-MR3240; is it due to the compatible issues or any problem? is any BIN file or further update firmware to fix it?

Index Time Type Level Log Content
168 1st day 00:03:50 3G/4G INFO Modem is plugged out.
167 1st day 00:03:48 3G/4G INFO LTE Modem = 0, modemStatus = 0, targetVendorID = 0x0000, targerProductID = 0x0000
166 1st day 00:03:46 3G/4G INFO LTE Modem = 0, modemStatus = 1, targetVendorID = 0x0000, targerProductID = 0x0000
165 1st day 00:03:46 3G/4G INFO handle_card start
164 1st day 00:02:39 3G/4G INFO modemUnplugedTime >= 60s
163 1st day 00:01:41 3G/4G INFO Modem is plugged out.
162 1st day 00:01:39 3G/4G INFO LTE Modem = 0, modemStatus = 0, targetVendorID = 0x0000, targerProductID = 0x0000
161 1st day 00:01:37 3G/4G INFO LTE Modem = 0, modemStatus = 1, targetVendorID = 0x0000, targerProductID = 0x0000
160 1st day 00:01:37 3G/4G INFO handle_card start