Need Help with EM20-G

[punkguy00017]

Like the title says I need help getting the modem to work on a wg3526 I got it all set up installed we fix and gets stuck on connecting or it doesn't find the modem. If someone can point me in the right direction as to what to and how to install I'd appreciate it. Thanks in advance

[Didneywhorl]

Log in to the web ui on 192.168.1.1 and navigate to the left side menus --> Modem -- > Miscellaneous --> AT Command Terminal

In the terminal enter the command:

Code: Select all

ATI

That will return your modems firmware version. Tell me what it is please.


There have been issues with the Quectel EM20G's newest firmware not wanting to play nice with the rooter firmware. There are workarounds, but its generally simpler to just downgrade the firmware.


Also, how do you have the EM20 installed? Are you using a mpcie to m.2 adapter or are you using a usb adapter plugged into the routers usb port?

[punkguy00017]

Thanks this is what I got
ATI
Quectel
EM20
Revision: EM20GRUR01A08M4G

OK

Also I'm using a m.2 adapter

[JimHelms]

What carrier are you using?

[punkguy00017]

Atnt

[Didneywhorl]

What plan are you using, from ATT directly?
What APN are you using?
Where did you put the SIM card?

Does SIM information show up in the SIM related fields under menu-> Modem-->> Nerwork Info-->> its about halfway down

[punkguy00017]

Last night after several days of trying everything turned out it was the new little cables inside but my modem were faulty.modem shows up still as connecting if I put an at command then it will go and show everything put then I'm limited at what websites I can go into. For example lets me see news sites but if I go onto let's say steam or epic it won't. I put the sim card on the sim tray on the 3526 I'm using firstnet- broadband but changed it to broadband only and my service hasn't disconnected so far going on for 2 hrs. So in modem it shows the modem and sometimes the modem info numbers and sim info and sometimes my phone number

[punkguy00017]

I went into wwan0 and put it in mbimode entered my apn and that's what got me connected to the internet if I put wwan0 into unmanaged I lose the internet

[Didneywhorl]

Which SIM tray are you using? The one on the adapter or the one on the side of the wg3526?

[punkguy00017]

The one on the 3526

[Didneywhorl]

Cool. Let us know of anything goes sideways.

[punkguy00017]

So far so good still no issues thanks

[punkguy00017]

Question with m.2 adapter I'm limited to 400 mps is there a router where u can plug that modem directly into?

[punkguy00017]

Just logged into the router this is all it shows me when I have good internet
Modem :
Quectel EM20-G
Modem 1
Modem ID :
2c7c : 0620

Provider :
Connecting

Comm Port :
/dev/ttyUSB2
Temperature :
-

Protocol :
-

[punkguy00017]

When I have the bad connection will tell me
All my info what band I'm connected to usually band 17 10 mhz

[JimHelms]

Do you have a USB to M.2 adapter on hand?

[punkguy00017]

Yes I do

[JimHelms]

If it were me, I would start over.

I would first remove the EM20-G and install in the USB to M.2 adapter and downgrade the firmware per this TUTORIAL.

Next, and while the modem is removed, I would use the Firmware RECOVERY Method and install the latest WiFiX firmware for the WG3526.

Once installed, hard reboot the router, login and install the firmware a second time from within the WiFiX UI.

Login and set your time zone and your APN to:

Code: Select all

broadband

and SAVE & APPLY.

Then, shut it down, and reinstall the EM20-G.

Boot up the router, login and give it a minute or two to stabilize and to load the drivers for the EM20-G.

Next, I would reset the modem to OEM status to erase any configuration that may effect it:

Code: Select all

AT+QPRTPARA=3

Give it about 20 seconds, then unplug power from the router.

Next, install your SIM Card, and power up the router.

I would be surprised if you do not connect within a few minutes, and be able to read all of the stats (to exclude the temp) from the Modem Network page.

While doing all of this may be a pain, it will help to eliminate and/or solve issues that may only be compounding the more you configure it.

[punkguy00017]

Ok will do it tomorrow as for now it's bed time gotta be up early tomorrow as my kids wake up at the crack of dawn

[Didneywhorl]

Question with m.2 adapter I'm limited to 400 mps is there a router where u can plug that modem directly into?

Not really. One exists but can't be recommended until a V3 releases and proves it won't eat modems anymore. NEXG H721

Another is so new no one has them to test. Orders are placed, time will tell. ZBT WG1608

Haven't found any others.

[Didneywhorl]

You CAN, though, use a usb 3.0 adapter from The Wireless Haven and plug it into the wg3526s usb port and get full usb3.0 bus speeds.

I max out my tower with mine

[Didneywhorl]

Jim snuck in while I was typing

[punkguy00017]

What adapter is this I have one haven't used it though I had ordered off of eBay as I did not now this place existed until I googled for em20 issues lol

[punkguy00017]

So it's better to run the modem off of the USB adapter on the modem than it is to connect directly to the modem using an m.2 adapter? Also is there any configuration I have to go into settings or is the router going to find the modem automatically once I plug it into the router and power it on?

[JimHelms]

The USB to M.2 adapter is only used to flash the modem firmware behind a PC.

Thereafter, reinstall the modem in the router.

There should be no other configurations necessary. Just follow the steps in my post.

[punkguy00017]

Ok thanks I will do it later today when I have a little time as I'm busy watching after a newborn and trying to clean my pool

[punkguy00017]

Ok downgraded modem like was said to. reinstalled wifix twice entered apn restarted and inserted sim working like a charm no issues thanks!

[punkguy00017]

Here is what it's showing now
Modem :
Quectel EM20
Modem #1
Modem ID :
2c7c : 0620

Provider :
FirstNet

Comm Port :
/dev/ttyUSB2
Temperature :
-

Protocol :MBIM

WiFiX WG3526
Signal/Cell Information
Current Connection

General Information
Modem :
Quectel EM20
Modem #1
Modem ID :
2c7c : 0620

Provider :
FirstNet

Comm Port :
/dev/ttyUSB2
Temperature :
-

Protocol :
MBIM


Modem/SIM Information

Modem IMEI :
864505040****

SIM IMSI :
31**********""""
SIM ICCID :
89011003*********
SIM Phone Number :
1804450*****

SIM Name :
*

Signal Information
Network :
FDD LTE

CSQ :
20

Signal Strength :
64%

RSSI :
-73 dBm

ECIO :
-17 (RSRQ) dB

RSCP :
-105 (RSRP) dBm

Connection Monitoring Status :
Disabled


Cell Information
MCC MNC :
313 100

RNC/eNB ID :
9EC08 (650248)

LAC/TAC :
1247 (4679)

Cell ID :
0F (15)

LTE Band :
B17 (Bandwidth 10 MHz Down | 10 MHz Up)

Channel :
5780

Maximum Qos :
-

[punkguy00017]

ATI
Quectel
EM20
Revision: EM20GRAR01A06M4G

OK

[punkguy00017]

How can I make this chose a different band?

[Didneywhorl]

Band locking....

https://wirelessjoint.com/viewtopic.php?f=16&t=943

[JimHelms]

Glad you got it up and running.

The easiest way to program a band or group of bands is using this Spreadsheet.

[punkguy00017]

Ok I'm gonna look into it and thanks for all the help you and didneywhorl provided me. Y'all helped me all the way thru

[Didneywhorl]

Signal Information
Network :
FDD LTE

CSQ :
20

Signal Strength :
64%

RSSI :
-73 dBm

Now to work on that Signal Numbers. "Those are rookie numbers! You gotta get those numbers up!"

I like the general guide here:https://usatcorp.com/faqs/understanding ... th-values/ There are others posted in this forum of course.

[punkguy00017]

I know I have 4 16dbi directional antennas hooked up

[punkguy00017]

My info as of 1824 hrs today

Signal Information
Network :
FDD LTE

CSQ :
21

Signal Strength :
67%

RSSI :
-71 dBm

ECIO :
-17 (RSRQ) dB

RSCP :
-107 (RSRP) dBm

Connection Monitoring Status :
Disabled


Cell Information
MCC MNC :
313 100

RNC/eNB ID :
9EC08 (650248)

LAC/TAC :
1247 (4679)

Cell ID :
0F (15)

LTE Band :
B17 (Bandwidth 10 MHz Down | 10 MHz Up)

Channel :
5780

Maximum Qos :
-

[punkguy00017]

How in the heck can I get better signal

[Didneywhorl]

Constant tweaking and checking