hAP ax lite LTE6 won't connect to cellular network

Hi all!

I’ve just purchased a hAP ax lite LTE6 and i’ve been having trouble getting the LTE modem to work. I have a data sim card which can’t seem to connect to my provider (Keepgo, a travel sim). It recognises the sim but all other status fields are blank.
I have tested the sim card with my phone at can confirm I have the correct APN settings and network. This is the relevant config:

/interface/lte/print detail  
Flags: X - disabled; R - running 
 0    default-name="lte1" name="lte1" mtu=1500 mac-address=removed apn-profiles=main allow-roaming=yes network-mode=3g,lte band=1,3,5,7,8,20,28,38,40,41
/interface/lte/apn/print detail  
Flags: * - default 
 0 * name="main" apn="internet.keepgo.com" use-peer-dns=no use-network-apn=no add-default-route=no ip-type=ipv4 authentication=none

Notably I see the following loop of messages (every 10 seconds) when I enable LTE debugging:

 13:57:49 lte,debug lte1 mbim: >>> N - connect: register state
 13:57:49 lte,packet lte1 mbim: status data: 
 13:57:49 lte,packet lte1 mbim: 00000000 02000000 01000000 00000000
 13:57:49 lte,packet lte1 mbim: 01000000 30000000 00000000 30000000
 13:57:49 lte,packet lte1 mbim: 00000000 30000000 00000000 00000000
 13:57:49 lte,debug lte1 mbim: register state: searching
 13:57:49 lte,debug lte1 mbim: >>> N - connect: packet service
 13:57:49 lte,packet lte1 mbim: status data: 
 13:57:49 lte,packet lte1 mbim: 00000000 04000000 00000000 00000000
 13:57:49 lte,packet lte1 mbim: 00000000 00000000 00000000
 13:57:49 lte,debug lte1 mbim: packet service: detached data class: 0 nwe: 
 13:57:59 lte,debug lte1 mbim: >>> N - connect: emergency mode
 13:57:59 lte,packet lte1 mbim: status data: 
 13:57:59 lte,packet lte1 mbim: 01000000
 13:57:59 lte,debug lte1 mbim: unhandled command: emergency mode
 13:57:59 lte,debug lte1 mbim: >>> N - connect: register state
 13:57:59 lte,packet lte1 mbim: status data: 
 13:57:59 lte,packet lte1 mbim: 00000000 00000000 01000000 00000000
 13:57:59 lte,packet lte1 mbim: 01000000 30000000 0a000000 3c000000
 13:57:59 lte,packet lte1 mbim: 00000000 3c000000 00000000 00000000
 13:57:59 lte,packet lte1 mbim: 32003600 32003000 31000000
 13:57:59 lte,debug lte1 mbim: waiting for modem to make up it's mind
 13:57:59 lte,debug lte1 mbim: >>> N - connect: packet service
 13:57:59 lte,packet lte1 mbim: status data: 
 13:57:59 lte,packet lte1 mbim: 00000000 00000000 00000000 00000000
 13:57:59 lte,packet lte1 mbim: 00000000 00000000 00000000
 13:57:59 lte,debug lte1 mbim: packet service: unknown data class: 0 nwe: 
 13:58:11 lte,debug lte1 mbim: >>> N - connect: emergency mode
 13:58:11 lte,packet lte1 mbim: status data: 
 13:58:11 lte,packet lte1 mbim: 00000000
 13:58:11 lte,debug lte1 mbim: unhandled command: emergency mode
 13:58:12 lte,debug lte1 mbim: >>> N - connect: register state
 13:58:12 lte,packet lte1 mbim: status data: 
 13:58:12 lte,packet lte1 mbim: 00000000 02000000 01000000 00000000
 13:58:12 lte,packet lte1 mbim: 01000000 30000000 00000000 30000000
 13:58:12 lte,packet lte1 mbim: 00000000 30000000 00000000 00000000
 13:58:12 lte,debug lte1 mbim: register state: searching
 13:58:12 lte,debug lte1 mbim: >>> N - connect: packet service
 13:58:12 lte,packet lte1 mbim: status data: 
 13:58:12 lte,packet lte1 mbim: 00000000 04000000 00000000 00000000
 13:58:12 lte,packet lte1 mbim: 00000000 00000000 00000000
 13:58:12 lte,debug lte1 mbim: packet service: detached data class: 0 nwe:

Has anyone seen this before and are there any AT commands I can run that may help debug this issue? Also does anyone know if is there an AT command referece for the FG621 modem? I can’t find one online or really for any related Fibocom modem. Thanks for the help.

1 Like

Just in case anyone finds this in the future, Mikrotik support managed to solve this for me by setting the following modem-init commands. Just replace with the APN of your provider.

/interface lte set lte1 modem-init="AT+CGDCONT=0,\"IPV4V6\",\"<YOUR APN>\";AT+CGDCONT=1,\"IPV4V6\",\"<YOUR APN>\""
1 Like

Same problem here, moved the SIM to a SXT LTE6 kit (routerOS 6.49.10), worked immediately.

Edit: the workaround posted by OP works for me :slight_smile: