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mrmut
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wAP R 3g? (RBwAPR-2nD)

Wed Dec 18, 2019 8:08 pm

I have some issues with LTE signal on premises, and was told to switch to 3G. WhenI do that 3G doesn't seem to work?

The model is wAP R / RBwAPR-2nD. I am not sure if it has 3G or not.

https://mikrotik.com/product/RBwAPR-2nD

If it doesn't have 3G option, what modem would be the best option for an upgrade, provided that an upgrade can be done.

Thanks a lot.

EDIT: From what I dug out, the modem inside is "R11e-LTE", and I updated the firmware to "MikroTik_CP_2.160.000_v010"
 
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Re: wAP R 3g? (RBwAPR-2nD)

Wed Dec 18, 2019 8:44 pm

I have a wAP LTE with the same modem. My modem is running "MikroTik_CP_2.160.000_v013" as the modem firmware and ROS is 6.46.1
I have a option under LTE and Network Mode. There I can select GSM, 3G or LTE. Now I do not have a issues with LTE where this device is placed so I have never tested but if you need to run 3G this modem should be able to do so.
 
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Re: wAP R 3g? (RBwAPR-2nD)

Wed Dec 18, 2019 9:25 pm

I have a wAP LTE with the same modem. My modem is running "MikroTik_CP_2.160.000_v013" as the modem firmware and ROS is 6.46.1
I have a option under LTE and Network Mode. There I can select GSM, 3G or LTE. Now I do not have a issues with LTE where this device is placed so I have never tested but if you need to run 3G this modem should be able to do so.
I was instructed by the operator to switch to 3G, as there was no issue with it on the spot. When I did, the modem wouldn7t connect at all. Only LTE works (alltho I have all three options 2G, 3G and LTE as checkboxes). That is why I am wondering what could be at hand.
 
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Re: wAP R 3g? (RBwAPR-2nD)

Thu Dec 19, 2019 12:11 am

Give us:
[admin@MikroTik] > interface lte export verbose 
[admin@MikroTik] > system resource usb print
.
In my example at 3G I can connect, at LTE with both Band's and even do CellLock. R11e-LTE6.
.
You should al least try this:
[admin@MikroTik] > interface lte set lte1 network-mode=3g band=""
[admin@MikroTik] > interface lte cell-monitor lte1
[admin@MikroTik] > interface lte scan lte1
 
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Re: wAP R 3g? (RBwAPR-2nD)

Thu Dec 19, 2019 10:07 am

OK I had to test this myself as I know I have both LTE and 3G coverage where the router is located and I cannot connect to 3G. Now I have not waited for a long time but in the logs I can see it connect then I get this error:
09:03:35 lte,debug I_WAN: network access technology: 3G HSDPS & HSUPA 
09:03:35 lte,async I_WAN: rcvd +CME ERROR: 100 
So for less then a second I have 3G connection and then it dies for me with the +CME error. I have no idea what this means and it might work if I reboot the device after setting only 3G. Have not tested that.
 
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Re: wAP R 3g? (RBwAPR-2nD)

Thu Dec 19, 2019 10:29 am

Here is the config and test data!
# dec/19/2019 09:26:31 by RouterOS 6.44.6
# software id = NLIW-GDHR
#
# model = RBwAPR-2nD
/interface lte apn
set [ find default=yes ] add-default-route=yes apn=internet default-route-distance=2 name=default use-peer-dns=yes
/interface lte
set [ find ] apn-profiles=default disabled=no mac-address=AC:FF:FF:00:00:00 mtu=1500 name=lte1 network-mode=gsm,3g,lte





# DEVICE VENDOR                                                  NAME                                                 SPEED                                                
0 1-0    Linux 3.3.5 ehci_hcd                                    RB400 EHCI                                           480                                                  
1 1-1    MikroTik                                                R11e-LTE                                             480        


interface lte cell-monitor lte1
PHY-CELLID BAND                                                       EARFCN                                                                RSRP          RSRQ          RSSI
       103 B1                                                         500                                                                -106dBm       -19.5dB
       182 B1                                                         500                                                                -110dBm         -16dB
       458 B1                                                         500                                                                -111dBm       -19.5dB


interface lte scan lte1
Flags: C - current, A - available, F - forbidden 
  OPERATOR                                                  MCC-MNC ACCESS-TECHNOLOGY                                                       RSSI          RSRP          RSRQ
C A1                                                        21910 Evolved 3G (LTE)                                                                    -96dBm       -11.5dB

I just entered interface lte set lte1 network-mode=3g band="", but that earlier didn't work, so we had to turn on LTE back again.

UPDATE - it didn't work again. We had to turn LTE back on again.
 
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Re: wAP R 3g? (RBwAPR-2nD)

Thu Dec 19, 2019 11:00 am

@Kindis
viewtopic.php?t=146857
Please post at this thread.
Be sure your have firmware v13
/interface lte firmware-upgrade lte1

@mrmut
Similar situation to SXT LTE 3-7 who have simply bad signal.
Please check the modem firmware to be latest and try ROS v6.46 (from 6.44.6 is many LTE fix included).
 
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Re: wAP R 3g? (RBwAPR-2nD)

Thu Dec 19, 2019 11:28 am

@Kindis
viewtopic.php?t=146857
Please post at this thread.
Be sure your have firmware v13
/interface lte firmware-upgrade lte1

@mrmut
Similar situation to SXT LTE 3-7 who have simply bad signal.
Please check the modem firmware to be latest and try ROS v6.46 (from 6.44.6 is many LTE fix included).
I just upgraded to v13 fw, and it seems to me that rsrq: -10.5dB and sinr: 11dB are better off for about 1.5-2dB.

I also tested 3G only connection, and ti didn't work. I tested on iPhone SE, and it connected to 3G.
 
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Re: wAP R 3g? (RBwAPR-2nD)

Thu Dec 19, 2019 11:48 am

OK I had to test this myself as I know I have both LTE and 3G coverage where the router is located and I cannot connect to 3G. Now I have not waited for a long time but in the logs I can see it connect then I get this error:
09:03:35 lte,debug I_WAN: network access technology: 3G HSDPS & HSUPA 
09:03:35 lte,async I_WAN: rcvd +CME ERROR: 100 
So for less then a second I have 3G connection and then it dies for me with the +CME error. I have no idea what this means and it might work if I reboot the device after setting only 3G. Have not tested that.
I had exactly this problem. The modem connected to 3G, and then disconnected.
 
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Re: wAP R 3g? (RBwAPR-2nD)

Thu Dec 19, 2019 12:24 pm

I had exactly this problem. The modem connected to 3G, and then disconnected.
.
Then please send suppout.rif to support@mikrotik.com .
 
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Re: wAP R 3g? (RBwAPR-2nD)

Thu Dec 19, 2019 1:46 pm

I just did. Thanks.
 
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Re: wAP R 3g? (RBwAPR-2nD)

Thu Dec 19, 2019 4:27 pm

@Kindis
viewtopic.php?t=146857
Please post at this thread.
Be sure your have firmware v13
/interface lte firmware-upgrade lte1
I'm already on the latest firmware. This is really not a issue for me as I can use LTE but as I tested I did not manage to get 3G to work.
I might be blind I do not see any solution in the link only the same issue.
 
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Re: wAP R 3g? (RBwAPR-2nD)

Thu Dec 19, 2019 4:37 pm

Maybe there is some kind of incompatibility with some of the base stations. I have these issues for a while, but I opened a thread only after I tested this carefully.
 
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Re: wAP R 3g? (RBwAPR-2nD)

Thu Dec 19, 2019 5:15 pm

...
I did not manage to get 3G to work.
I might be blind I do not see any solution in the link only the same issue.
I know one example then person go to his ISP to change SIM card... and 3G start working. Strange but this happens ones. maybe this is the last way of hope.
Of course anyone sending his problem to support@mikrotik.com is helping other ppl.
 
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Re: wAP R 3g? (RBwAPR-2nD)

Thu Dec 19, 2019 5:20 pm


I know one example then person go to his ISP to change SIM card... and 3G start working. Strange but this happens ones. maybe this is the last way of hope.
Hm. This is a new one. Another telecom offered a trial on their own service 3G/LTE so we will probably try that, but before we have to test everything. I really see no reason for such a basic thing as 3G not to work. The reason is probably something trivial that we just don't know about yet.
 
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Re: wAP R 3g? (RBwAPR-2nD)

Tue Jul 13, 2021 8:09 pm


I know one example then person go to his ISP to change SIM card... and 3G start working. Strange but this happens ones. maybe this is the last way of hope.
Hm. This is a new one. Another telecom offered a trial on their own service 3G/LTE so we will probably try that, but before we have to test everything. I really see no reason for such a basic thing as 3G not to work. The reason is probably something trivial that we just don't know about yet.
Hi! So did you manage to solve the problem by any chance? I have the issue where older LTE LHG with LTE R11e-LTE modem does connect to 3G, but 2 newer LTE LHG models with R11e-LTE6 modem wont
 
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Re: wAP R 3g? (RBwAPR-2nD)

Sun Sep 19, 2021 1:43 am

I have ~20 R11e-LTE6 and they can connect to 3G as backup when 4G cannot be used...
Please upgrade module lte firmware, read my KB in signature to proper test and report problem.
With 3G you can use CellMonitor to see if you can detect any towers.

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