I'm hoping someone here may be able to offer some help!

I have 2 MR600's on different mobile networks (in the UK: one is Vodafone, one is EE).

Both have been working well for many months until a few days ago when one could not connect to the internet. Wifi remains fine. No other changes made, it just stopped the connection.

    I have checked Sim card is connected properly - it is.
    I have rebooted multiple times.
    I have returned to factory settings.

without any success in reconnecting to the internet.

I swapped the Sim card to the other MR600, and it works fine in that.

I put the Sim card from the other MR600 into the first one and it still didn't conext to the internet.

On the Basic Network Map menu it shows:

    Internet status: Disconnected
    Sim Card Status: SIM card prepared
    No IP address showing.

System log:

2018-10-01 00:00:34 [5] 4G: init LTE module, set flowstat [enableDataLimit 0, enablePaymentDay 0, paymentDay 1, limitation 0, warningPercent 90]
2018-10-01 00:00:34 [5] 4G: LTE Module: profile num [1], default profile [1], active profile [0]
2018-10-01 00:00:34 [5] 4G: DM: profile num [1], default profile [1], active profile [0]
2018-10-01 00:00:35 [5] System: Enable IPv4 SPI Firewall
2018-10-01 00:00:35 [5] System: Enable IPv6 SPI Firewall
2018-10-01 00:00:43 [6] System: Device(xxxxxxxxx) joins in 5G Wlan
2018-10-01 00:00:44 [5] DHCPD: Recv REQUEST from 98:2C:BC:1A:15:12
2018-10-01 00:00:44 [5] DHCPD: Send ACK to 192.168.1.100
2018-10-01 00:01:03 [6] System: User(Mac:xxxxxxxxxx) logs in.
2018-10-01 00:01:07 [6] 4G: USER: lte_sms_status_valid invalid .

2018-10-01 00:01:07 [6] 4G: USER: lte_sms_status_valid invalid .

2018-10-01 00:01:27 [6] 4G: WARN: Network selecting failed, mostly rejected.

Any thoughts?

Thanks,

AB