R11e-LTE-US issue in RBM33G

Hardware MikroTik hardware general
1

Submitted to support@mikrotik.com, but hoping (unfortunately) maybe somebody else has encountered similar issues.

I'm having problems getting the R11e-LTE-US in my RBM33G to stay registered on the cell network for more than a sec, it gets kicked off as soon as it registers. None of my sims work, but they do in the other wAP LTE I have (currently on 6.44.3 but hesitant to upgrade) and also in a USB Sierra MC7700 on my hex S (running 6.46.4).

I upgraded the RBM33G to latest 6.46.4 when started out, reset config, but trying to run at-commands return ERROR or modem not ready. I can't upgrade the firmware on the LTE card because it doesn't stay registered for more than a sec. Is there another way to update it? Is there a compatibility problem?

some more details/logs below...

/interface lte info lte1
pin-status: ok
functionality: full
manufacturer: MikroTik
model: R11e-LTE-US
revision: MPSS: R11eL_v12.09.174661 APSS: R11eL_v02.14.174662 CUSTAPP:
imei: xxx
imsi: xxx
uicc: xxx

/interface lte at-chat lte1 input="AT*MRD_IMEI=R"
output: ERROR

/interface lte at-chat lte1 input="AT*MRD_IMEI=R"
failure: modem not ready

/log print
02:20:29 system,info router rebooted
02:20:33 bridge,info "bridge1" mac address changed to xxx
02:20:39 wireless,info xxx@wlan1: connected, signal strength -47
02:20:46 lte,async lte1: sent AT E0 V1
02:20:46 lte,async lte1: rcvd OK
02:20:46 lte,async lte1: sent AT+CFUN=1,1
02:20:46 lte,async lte1: rcvd OK
02:20:46 system,info,account user admin logged in from 192.168.27.254 via winbox
02:20:47 system,info,account user admin logged in from 192.168.27.254 via telnet
02:20:52 lte,async lte1: modem hung up
02:21:07 lte,async lte1: sent AT E0 V1
02:21:17 lte,error lte1: reply timeout for: AT E0 V1
02:21:18 lte,async lte1: sent AT E0 V1
02:21:18 lte,async lte1: rcvd OK
02:21:18 lte,async lte1: sent AT+GMI
02:21:18 lte,async lte1: rcvd MikroTik
02:21:18 lte,async lte1: sent AT+GMM
02:21:18 lte,async lte1: rcvd R11e-LTE-US
02:21:18 lte,async lte1: sent AT+GMR
02:21:18 lte,async lte1: rcvd MPSS: R11eL_v12.09.174661 APSS: R11eL_v02.14.174662
CUSTAPP:
02:21:18 lte,async lte1: sent AT+CGSN
02:21:18 lte,async lte1: rcvd xxx
02:21:18 lte,async lte1: sent AT+CFUN?
02:21:18 lte,async lte1: rcvd +CFUN: 1
02:21:18 lte,async lte1: sent AT+CFUN=4
02:21:18 lte,async lte1: rcvd OK
02:21:21 lte,async lte1: sent AT+CFUN?
02:21:21 lte,async lte1: rcvd +CFUN: 4
02:21:21 lte,async lte1: sent AT+CMEE=2
02:21:21 lte,async lte1: rcvd OK
02:21:21 lte,async lte1: sent AT+CREG=2
02:21:21 lte,async lte1: rcvd OK
02:21:21 lte,async lte1: sent AT+CGREG=2
02:21:21 lte,async lte1: rcvd OK
02:21:21 lte,async lte1: sent AT+CEREG=2
02:21:21 lte,async lte1: rcvd OK
02:21:21 lte,async lte1: sent AT+CGEREP=2,0
02:21:21 lte,async lte1: rcvd OK
02:21:21 lte,async lte1: sent AT+CMGF=0
02:21:21 lte,async lte1: rcvd OK
02:21:21 lte,async lte1: sent AT+CNMI=1,1,0,1,0
02:21:21 lte,async lte1: rcvd OK
02:21:21 lte,async lte1: sent AT+CFUN=1
02:21:21 lte,async lte1: rcvd OK
02:21:21 lte,async lte1: sent AT+CPIN?
02:21:21 lte,async lte1: rcvd +CPIN: READY
02:21:25 lte,async lte1: sent AT+CPMS="SM","SM","SM"
02:21:25 lte,async lte1: rcvd +CPMS: 0,30,0,30,0,30
02:21:25 lte,async lte1: sent AT+CFUN?
02:21:25 lte,async lte1: rcvd +CFUN: 1
02:21:25 lte,async lte1: sent AT+ICCID
02:21:25 lte,async lte1: rcvd ICCID: xxx
02:21:25 lte,async lte1: sent AT+CNUM
02:21:25 lte,async lte1: rcvd
02:21:25 lte,async lte1: sent AT+CIMI
02:21:25 lte,async lte1: rcvd 310410227425065
02:21:25 lte,async lte1: sent AT+CPIN?
02:21:25 lte,async lte1: rcvd +CPIN: READY
02:21:25 lte,async lte1: sent AT+COPS=2
02:21:25 lte,async lte1: rcvd OK
02:21:25 lte,async,event lte1: +CGEV: NW DETACH
02:21:27 lte,async lte1: sent AT+COPS=0,0,,7
02:21:27 lte,async lte1: rcvd OK
02:21:27 lte,async lte1: sent AT+CGDCONT=1,"IP","Broadband"
02:21:27 lte,async lte1: rcvd OK
02:21:27 lte,async lte1: sent AT$QCPDPP=1,0
02:21:27 lte,async lte1: rcvd OK
02:21:28 lte,async lte1: sent AT+CEREG=2
02:21:28 lte,async lte1: rcvd OK
02:21:28 lte,debug lte1: config ok
02:21:28 lte,debug lte1: network access technology: Evolved 3G (LTE)
02:21:28 lte,info lte1: registered home
02:21:33 lte,async lte1: sent at$ecmcall=1
02:21:33 lte,async lte1: rcvd ERROR
02:21:33 lte,async lte1: sent at$ecmcall?
02:21:33 lte,async lte1: rcvd ERROR
02:21:33 lte,async lte1: sent AT+CFUN=1,1
02:21:33 lte,async lte1: rcvd OK
02:21:37 lte,async,event lte1: +CGEV: ME DETACH
02:21:38 lte,async lte1: modem hung up

/system resource pci print

DEVICE VENDOR NAME IRQ

0 01:00.0 Atheros Communications Inc. 11a/b/g/n Wireless LAN M... 4
1 00:00.0 unknown unknown (rev: 1) 0

/system resource usb print

DEVICE VENDOR NAME SPEED

0 1-0 Linux 3.3.5 xhci-hcd xHCI Host Controller 480
1 2-0 Linux 3.3.5 xhci-hcd xHCI Host Controller 5000
2 1-1 MikroTik R11e-LTE-US 480

2

My Mikrotik latest modem firmware list:

  • R11e-lte6 v025 (31.03.2020)
  • R11e-lte MikroTik_CP_2.160.000_v015
  • R11e-lte-4g v9
  • R11e-lte-us v16.02.183961
  • SXT LTE 3-7 |-> chip:2.0 fw:0.1.2.4

https://wiki.mikrotik.com/wiki/Manual:Interface/LTE#Modem_firmware_upgrade
but the R11e-LTE and R11e-LTE-US must be upgrade only by itself lte1 connection with internet.

Other SIM, other ISP, set 3G only ?

I have not any clue for you. I hope support give you response.

3

Yes i have same issue with R11e-LTE (non US version). It was working for like approx. 1 year and started to do stuff you posted. I can manage to establish LTE connection for some period of time by disabling lte1 interface, then rebooting RBM33G, after it comes up i wait little bit and then enable lte1 interface and it’s working, but will drop in a while, sometimes minutes, sometimes days. I managed to upgrade R11e-LTE fw to the latest one (v015 if im correct), but no change.

4

Mikrotik support sent me firmware downloader which failed and they told me my card was bricked.

5

Hmm that’s unfortunate, i hoped you have a solution already from them. Not sure what to do, i tried also downgrade ROS version (multiple different ones), but no luck. I will probably get another r11e-lte and this one i will send to them, they can do … stick it on the fridge or whatever… I really like mikrotik, just if it would be working.
.

6

if you must buy the r11e-lte or r11e-lte6 then cheaper and works better is EP06-e, my last howto is here: http://forum.mikrotik.com/t/quectel-ep06-e-and-wap-r-ac-rbwapgr-5hacd2hnd/131724/10
Or just wait to next generation of modules base at eg12/eg16 … and we don’t have idea when it’s be

7

Thank you SiB for the tip, i just ordered it on ebay. It’s not exactly cheaper then r11e-lte (67.-Eur here in Slovakia) vs EP06-E (75$ on ebay) however i would like something which is actually working so yeah, lets give it a try. Mikrotik got a chance, now it’s up to China.

8

Thanks for this. Finally I updated the firmware of my R11e-LTE-US using my RBM33G. First updated from ROS 6.45 to ROS 6.46.6 and works perfect. Tomorrow I will to migrate my interfaces to LtAP and I will buy a new SIM card to test if my interface will run.