Hi i have the same problem on ROS 6.41.2, so when this problem will be solved?
Hello, how to connect to vpn server by using SXT LTE? I was tried to create connection with my vpn server but the connection wasn’t establish but when i using RB the connection can establish. I was using VPN L2TP with IPSec. Any idea?
Hi, I’m getting the same issue (connection randomly drops and doesn’t reconnect - I then have to power cycle the router to get it up and running again) with the new RBSXTR&R11e-LTE running version 6.43.2 software. Please tell me there’s a solution to this as it is really embarrassing and difficult to explain to a client.
i have make a schedule with this command start all 5 Minutes
:if ([:len [/interface find name="lte1"]] = 0) do={[/log error "LTE not found"] & [/system reboot]} else={[/log info "LTE-Found"]};
i hope this will help for a workaround
my RouterOS version is 6.43.4
In my case SXT LTE kit (RBSXTR&R11e-LTE) lte INTERFACE DOES NOT MISS. The antenna stops working with the 4G network (BAND 20), and this can happen even 3 days after a complete reset, or maybe 2 weeks later, refuse to register on the network. In the settings it works with 3G / 4G. It does not register itself in 3G. LTE interface does not disappear. Turning off / enabling LTE interface does not give anything. Very disappointed. If someone else behaves like the device, please write how you solved this problem Version 6.43.7 firmware
Anyone get a fix for this? have around half of my installs with this problem some worse than others
I have same issue, downgrade routeros or reinstal package lte didnt help.
Hi Mikrotiks, any fix for this yet? Still happening on several units on a daily basis others weekly?
Hi Mikrotik guys,
Is the LHG LTE kit (https://mikrotik.com/product/lhg_lte_kit) safe from the LTE modem/firmware issues listed above?
Cheers,
Rob
It’s same modem but different antenna…
Doing some more testing, I don’t see my LTE interface disappearing but I do have a lot of disconnects during quiet times in my network. Its like my operator disconnects when there is no activity.
I have a ping 1.1.1.1 script scheduled which restarts the interface on-failure, works pretty well too.
My STX LTE units are the newer ones as they don’t have the lte package installed so maybe this is why I don’t see the interface disappearing. I sometimes do a usb power reset (kills power to LTE chip) and the interface disappears for a few seconds
Looks like 2 years later we still have new fixes regarding the problem: ROS version 6.45.5 changelog- lte - fixed LTE interface disappearing on RBSXTLTE3-7;
Maybe someone who’s still standing tall with RB SXT LTE 3-7 could post something- any changes with 6.45.5?
Yeah, reporting in. My RB SXT LTE still suffer intermittent no connectivity. Currently running 6.45.5 for about 1d plus. My case was not LTE interface disappear but more to LTE interface just “hang” and no connectivity at. I have a script written to ping google dns, and if they ping fail for 15 times, reset the Interface. The script will repeat itself every 3 minutes. In short, 6.45.5 didn’t fix my problem and this is very annoying especially when I am playing online gaming.
#mikrotikpleasefixtherproblem
Happening similar stuff. After few days LTE modem freeze and it just say in status tab: pin status: unknown. LTE interface not disapear.
I tryed:
USB reset
device restart using restart
device restart power disconnect
AT command /interface lte at-chat lte1 input=“AT+reset”
change slot A to B and back.
I have last stable and last FW for modem: MikroTik_CP_2.160.000_v012
stable version upgraded to: 6.45.6
ONLY THINK WHAT HELPS IS REMOVE SIM AND INSERT IN BACK. than its just start working normaly.
Imagine always go to the roof and do it.
So not even desable/enable/reset script help for me.
any slolution or should i return device?
I installed last stable OS v6.45.6 and it seems to be fine now. Now its on for 3 weeks …
Seems like for “new” Mikrtoik devices (4011, 60G, LTEs) is better use last stable instead of long term …
I have three SXT LTE units in the field. I have made more than 20 trips trying to resolve these issues. I have found locking it to the strongest Band and to LTE reduces it, but not completely.
Today we have 2 of the radios losing LTE connectivity all together. This places in the log:
lte1: not registred, state: 0
and
lte1: not registred, state: 11
Where can we get a list of the state codes and what they mean?
Hi!
Can you tell please, have you any problems with SXT after upgrading to v6.45.6?
Hi, sice my last post, there was one problem - when device power off and power on after 1 week. LTE doest connect. But I just disable LTE interface and re-enable it and it connect without problems. So lets say, yes it work much better then before. Before I had to remove sim and plug it back to be able “reset it” and make it connect to LTE …
Now running on 6.45.7
Why haven’t I red this earlier. I would not bought it 
such a waste of money only frustration. I tried installing 6.48beta40 and LTE interface keeps disappearing and it been 3 years this issue exist.
we have the same problem with wAP AC LTE kit. two different devices, purchased from different sources, tried several routerOS version, still happening.
is there any solution to this please? a device marketed as LTE hotspot is basically useless if this is happening.