Hello,
I’ve got an SXT R11e LTE6 (model number RBSXTR) and I am struggling to get an internet access with it.
First there was an issue with the SIM card (pre-cut)… Tip for all before inserting the SIM paste a piece of adhesive tape on the SIM, so you have something to pull it out just in case (the spring is not working for me).
Now, I’ve got the LTE signal (3 bars, not great but SXT is inside for testing, will be on the roof later), but I am unable to get internet from it (either to check for update, even by configuring the DNS as 8.8.8.8) since one week…trying several thing. I add the log below hope it’s enough to help ? 
It seems I don’t get an IP from my ISP. (Before with same SIM card, I have no issue having internet with a Huawai airbox)
I have check the SIM card status:
Interface lte at-chat lte1 input=“at+cpin?”
Output: +CPIN: READY
OK
(by the way there is multiple typo here https://help.mikrotik.com/docs/display/ROS/LTE (same in the old wiki) – the command is written as **/interface/lte/**at-chat lte1 input=“at+cpin?” – with / instead of space don’t know where to report that ?)
I tried several other things but without luck (or knowledge from what I am doing…)
Please help and thanks for reading.
The log (hope the command line was right : /export hide-sensitive compact)
Just xx some of the MAC value and serial just in case.
# jan/02/1970 02:36:59 by RouterOS 6.44.5
# software id = Q2U6-1S10
#
# model = RBSXTR
# serial number = B72B0B09xxx
/interface lte
set [ find ] mac-address=AC:xx:43:1A:xx:FD mtu=1480 name=lte1
/interface bridge
add admin-mac=C4:AD:xx:xx:A6:8B auto-mac=no comment=defconf name=bridge
/interface list
add comment=defconf name=WAN
add comment=defconf name=LAN
/interface lte apn
set [ find default=yes ] apn=sl2sfr
/interface wireless security-profiles
set [ find default=yes ] supplicant-identity=MikroTik
/ip hotspot profile
set [ find default=yes ] html-directory=flash/hotspot
/ip pool
add name=dhcp ranges=192.168.88.10-192.168.88.254
/ip dhcp-server
add address-pool=dhcp disabled=no interface=bridge name=defconf
/interface bridge port
add bridge=bridge comment=defconf interface=ether1
add bridge=bridge comment=defconf interface=ether2
/interface list member
add comment=defconf interface=bridge list=LAN
add comment=defconf interface=lte1 list=WAN
/ip address
add address=192.168.88.1/24 comment=defconf interface=ether1 network=192.168.88.0
/ip dhcp-server network
add address=192.168.88.0/24 comment=defconf gateway=192.168.88.1
/ip dns
set allow-remote-requests=yes servers=8.8.8.8
/ip dns static
add address=192.168.88.1 name=router.lan
/ip firewall filter
add action=accept chain=forward comment="defconf: accept in ipsec policy" ipsec-policy=in,ipsec
add action=accept chain=forward comment="defconf: accept out ipsec policy" ipsec-policy=out,ipsec
add action=fasttrack-connection chain=forward comment="defconf: fasttrack" connection-state=established,related
add action=accept chain=forward comment="defconf: accept established,related, untracked" connection-state=established,related,untracked
add action=drop chain=forward comment="defconf: drop invalid" connection-state=invalid
add action=drop chain=forward comment="defconf: drop all from WAN not DSTNATed" connection-nat-state=!dstnat connection-state=new in-interface-list=WAN
/ip firewall nat
add action=masquerade chain=srcnat comment="defconf: masquerade" ipsec-policy=out,none out-interface-list=WAN
