Wireless Joint

I would find a PC that the modem has never been attached to, download a fresh install of the Sierra Generic software drivers for Windows, and download all the carrier firmware executable files, and flash the modem twice with each of the carrier's firmware.

And, make sure there is no SIM Card in ...

I think I’m done messing about with this thing and am going to send this modem back to the pits of eBay (and add disclaimer of programming difficulty, of course) I accept defeat on this one, but I am so frustrated to not find out the cause and a resolution. Thanks to everyone who pitched in to help ...

I had to switch to MBIM and do a reset and then switch to a different firmware and do another reset (like Jim showed). After the second reset for the firmware change, the modem couldn't be found in the status screen. I waited maybe 15 or 20 seconds and then did a router software reboot.

I haven ...

Similar situation here, regarding low power mode and failed firmware flashes: https://forum.sierrawireless.com/t/em7565-low-power-mode/9836

Thanks for the link. Here are all my recent results from those you mentioned to try:

AT!USBCOMP?
Config Index: 1
Config Type: 1 (Generic)
Interface ...

I also just noticed that your firmware build numbers don't match your carrier configuration (the PRI lines) in the AT!IMAGE? results. One of them matches your preferred firmware build number and the other one matches your current firmware build number. Something doesn't seem right there.

Sprint ...

That is pretty strange.

Indeed...here are my results:

AT!IMAGE?
TYPE SLOT STATUS LRU FAILURES UNIQUE_ID BUILD_ID
FW 1 GOOD 2 0 0 ?_? 02.30.03.00_?
FW 2 GOOD 1 0 0 ?_? 02.26.01.00_?
FW 3 GOOD 1 0 0 ?_? 02.14.03.02_?
FW 4 GOOD 127 0 0 ?_? 02.20.03.22_?
Max FW images: 4
Active FW image is at ...

The generic firmware on the modem is the correct one for a MC7455 modem--regardless on the other packages.

What carrier are you using?

Can you copy and paste the GSTATUS output?

Hi Jim -

I am using AT&T carrier, so 'broadband' is my APN field.
at!gstatus?
!GSTATUS:
Current Time: 1689 ...

I would also highly recommend to NOT plug the MC7455 into your Window's PC.

Install it inside the router and you will be good to go.

Hi Jim -

I received the modem last week, thank you so much for assisting with the generic firmware on there!!

I re-installed the modem into the router, and ...

I know it can be frustrating--for all of us.

But, before I spent the funds on satellite internet, I would purchase a new OEM MC7455 and be done with it.

As I also mentioned before, if you want to ship your modem to us and pay shipping costs, we will see if we can get it up and running for you ...

unfortunately I'm still getting the same driver issues, despite uninstalling/flashing/reflashing etc. and it's still showing a Verizon build. I made sure it was done in MBIM composition as well.

I think I'm done with this stuff and will have to get satellite internet unfortunately...I've spent days ...

That may be part of your problem. We have discussed allowing Windows to control a modem on previous posts:

The first thing you need to do is remove the SIM Card where Windows cannot connect to the internet. You do not want Windows to 'Manage" your modem.

Next, remove/unplug the modem and ...

JimHelms wrote: Mon Jun 10, 2019 3:43 pm Hmm... Let me rephrase my question. Do you have the MC7455 plugged into the Windows PC (with a SIM Card), and allowing the MC7455 to connect to the internet via Windows?

yes, sorry for the confusion

When you say you have internet connected, are you allowing Windows to manage the Modem and connect to the internet?

from the error screenshot, it appears that an error connecting to network and downloading...I haven't seen any settings in other posts that state a necessary settings adjustment ...

What happens when you plug the modem and adapter into the PC and run the Sierra Wireless software drivers for Windows?

It will install the drivers fine, and during it will say that COM was installed successfully as well. I then do the reset commands, reboot, and try to install the generic ...

Hmm... The MC7455-CP is a modem out of a Cradlepoint LP6 modem and/or router.

It has a special software package and TAC number, but otherwise it is fully programmable and may be flashed with the Sierra Wireless generic firmware--just like an OEM MC7455.

The other user you referenced was ...

Hopefully, it can be corrected by flashing with the latest Sierra Wireless Generic firmware.

Hello again, after several months I finally had the courage to try again. I purchased the USB adapter in order to connect the modem directly to the computer. I ended up having the same issues as this ...

So you are saying that you did reflash the firmware on the MC7455? You would need a USB to Mini PCI-e adapter to flash the Sierra Wireless generic firmware.

You would also have to remove the MC7455 from the router to flash--or at least that would be the easiest method.

Where did you get your ...

This could be a firmware issue. Have you tried flashing the Generic firmware on the MC7455?

hi again Jim - I've tried so many different things, I'm pretty sure I've done the generic firmware. I've been trying to scour the Wireless Joint support site for other articles to try and troubleshoot on ...

Hi again, I ran through those new commands you listed:
at!entercnd="A710"
at!usbcomp=1,1,1009
at!selrat=06
at+cfun=1
at+cgdcont=1,"ipv4v6","broadband"
at!custom="IPV6ENABLE",1
at!reset

and was showing "ok" on all until:

at+cfun=1
+CME ERROR: operation not supported

I tried it with the small ...

One other task that you may want to perform to assure the router firmware is actually programming the MC7455 is to program it manually.

at!entercnd="A710"
at!usbcomp=1,1,1009
at!selrat=06
at+cfun=1
at+cgdcont=1,"ipv4v6","broadband"
at!custom="IPV6ENABLE",1
at!reset

Ok will do, thanks again ...

swwifty wrote: Thu Dec 13, 2018 9:23 am do you not have any little omnis you can directly connect to the modem to test with?

Hi Swwifty, I have 2 small omnis but I figured the range was too great for those (2 miles+) to have anything show up. I guess I could give it a go with Jim's recent post. Will report back soon

I see you are using external antennas. How are they connected the router's SMA connectors?

Just wanted to make sure the connector type matches. SMA and RP-SMA look the same but the center pins are different and are not interchangeable and will cause this type of issue.

Hi Jim -

I am using SMA ...

JimHelms wrote: Wed Dec 12, 2018 9:27 pm Have you checked to make sure the U.FL connectors have not popped off the MC7455 connector ports, and that they are connected to the MAIN and AUX ports?

yep, I checked those twice

2nd time I actually disconnected and reconnected just to be sure..same results unfortunately

alrighty I'm back...

I tried all the above you mentioned and I am stuck with the same results. It must be an antenna/signal issue? I double checked the orientation to make sure they were at right angles, and A-OK there. As I mentioned, I am getting a multimeter soon so I can check the cables ...

Also, when posting the results of the output or code, highlight the code and hit the </> button. That will place it in a readable format.

thank you so much Jim, I will go through all that and see what I come up with.

Also, sorry about the code highlight...now I know :lol: have a great night

JimHelms wrote: Wed Dec 12, 2018 7:16 pm Yes, give me a few minutes and I will work you up a game plan.

thank you sir! I was about to give up hope for the 2nd time

Which firmware and what build version are you using?

Hi Jim -

I installed from a tutorial you had posted:
Powered by LuCI openwrt-18.06 branch (git-18.210.69179-6df9a57) / GoldenOrb_2018-09-02

I used re-installed OEM Firmware then did the GoldenOrb reflash. Is this correct? Thanks for your ...

Good luck, and let me know what happens.

Regardless, don't give up, keep trying. You will figure out what the issue is, as long as you don't quit :)

Hello once again...I've continued to try and have at least been successful in getting to MBIM mode. Not sure how or why, but it allows me to do ...

It's possible the modem itself is defective, but I feel like something else is going on. It's tough to troubleshoot when I can't sit down in front of it.

Do you have another computer you could hook the modem up to, and see if you can issue AT commands to it?

I have tried on a Mac and on PC so ...

I was referring to the AT command 'AT!ENTERCND="A710"' which enables advanced commands, and is required to be entered before you can switch the modem out of QMI mode into MBIM.

Also, another option would be to try and reinstall GoldenOrb from scratch, or reset it to factory defaults, and see if ...

You need to issue the AT command to put the modem in MBIM mode where it says "AT-Command:"

First you have to enter the security code, and hit send command as describe in the other tutorials, then submit the command to put it in MBIM mode.

Yes, I realize that...as my first post stated, I'm not ...

You're using windows to try and send AT commands to the modem? I configured mine to use MBIM mode via the "Misc" option under "Modem" in Golden Orb. From there, you'll see an option to send AT commands. You had a screenshot of it earlier in this thread. That's how I did it. I suppose you could do ...

I would look into make sure your modem is in mbim mode as expected.

Hello again,

I followed that MBIM instruction you linked to and can't get very far (as I don't speak Russian..it also won't let me copy/paste the text in the warning/error :x ) at all. I installed all the appropriate ...

swwifty wrote: Wed Nov 28, 2018 6:40 pm The behavior you are describing sounds like that is the issue, and I recall when I first setup my MC7455, I had a similar issue.

Thanks! Ill review this MBIM mode tomorrow after I have refilled my patience meter a little bit with a good night sleep

could you try too with the factory antennas that came with the router? Typically they come with small omni directional antennas, that might be worth trying out, to rule out any cabling/antenna issues.

actually the WG3526 doesnt come with the small antenna...I dont know if it's possible, but ...

I've seen that when it can't find signal, but typically you can still issue AT commands.

Are you using the broadband APN? are you sure there is no whitespace at the end of where you typed it in?

Also what antennas are you using? Never heard of any 15dbi omni antennas.

Hi again...confirmed ...

What carrier are you using?

I have AT&T and I used my correct APN in the Modem>Connection Info section. The warnings I'm getting in the Modem>Misc section re: connectivity keep saying "Modem Present/Not Connected" and then I get a USB error when inputting an AT Command in the same section ...

Are you sure there's towers within your location?

I've seen this kind of behavior when there's no signal to connect to.

thanks for your reply

Yes, there are towers within a few miles and I have some dual 15db omni hooked up. This just seems like a more basic connectivity problem since the ...

Not sure if this means anything to anyone but here is the text in my Device Info under Modem > Debug Info:

T: Bus=02 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=5000 MxCh= 1
B: Alloc= 0/800 us ( 0%), #Int= 0, #Iso= 0
D: Ver= 3.00 Cls=09(hub ) Sub=00 Prot=03 MxPS= 9 #Cfgs= 1
P: Vendor=1d6b ProdID ...

a few questions come to mind.

1. has this ever worked?

2. is the modem internal to this router? I'm not familiar with it, but I would check the cables on it.

3. if you login to the router, and run `dmesg | grep -i usb` do you see the modem listed?

1. no (this is my first time setting up this ...

Hello , I appreciate any eyes on this issue.

I've installed the proper GoldenOrb based on all posted tutorials I've read through...I've read through all the troubleshooting issues and nothing seems to resolve my problem. Basically I've scoured other posts about connection issues and nothing is ...

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