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WG3526 + MC7455: No Modem Present

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WG3526 + MC7455: No Modem Present

Posted: Sat May 26, 2018 9:18 pm
by yxxxbxx
Hello,

I followed this guide for use with Calyx/Sprint (from an activated ZTE MF920VS): https://thewirelesshaven.com/building-wg3526-lte-router/
  • WG3526-P Router
    Sierra Wireless MC7455 Modem (CAT6)
    U.FL to SMA Female (Straight) Bulkhead Pigtails 1.13 cable Kit (has one 5″ and one 10″ pigtail)
    700-2700 MHz LTE Antennas (requires two antennas with SMA connectors)
    5 in 1 SIM Card Adapter Kit with Emery Sanding Board
The WG3526 does not connect.

Modem Connection Information:

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at+cgdcont=1,"ipv4v6","r.ispsn"
Miscellaneous Modem Features > AT-Command Terminal:

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    at!entercnd="A710"
OK

    at!usbcomp = 1,1,1009
OK

    at!selrat=06
OK

    at!custom="IPV6ENABLE",1
OK

    at+cgdcont=1,"ipv4v6","r.ispsn"
OK

    at!reset
OK

Network Status - Signal/Cell Information:

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Modem: No Modem Present
Debug Informatio - Modem Debug Information:

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Sun May 20 16:52:03 2018 : /dev/ttyUSB1 AT+CGDCONT?
+CGDCONT: 1,"IPV4V6","at+cgdcont=1,"ipv4v6","r.ispsn"","0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0",0,0,0,0
OK
  
Sun May 20 17:02:43 2018 : /dev/ttyUSB1 at!entercnd="A710"
OK
  
Sun May 20 17:02:57 2018 : /dev/ttyUSB1 at!usbcomp = 1,1,1009
OK
  
Sun May 20 17:03:09 2018 : /dev/ttyUSB1 at!selrat=06
OK
  
Sun May 20 17:03:22 2018 : /dev/ttyUSB1 at!custom="IPV6ENABLE",1
OK
  
Sun May 20 17:03:36 2018 : /dev/ttyUSB1 at+cgdcont=1,"ipv4v6","r.ispsn"
OK
  
Sun May 20 17:03:55 2018 : /dev/ttyUSB1 at!reset
OK
  
Sun May 20 17:04:33 2018 : /dev/ttyUSB1 AT+CGDCONT?
+CGDCONT: 1,"IPV4V6","r.ispsn","0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0",0,0,0,0
OK
  
Sun May 20 17:04:38 2018 : /dev/ttyUSB1 AT+CGDCONT=1,"IPV4V6","at+cgdcont=1,"ipv4v6","r.ispsn"";+CFUN=0:+CFUN=1
ERROR

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Device Information
		
	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=0003 Rev= 4.04 	
	S: Manufacturer=Linux 4.4.92 xhci-hcd 	
	S: Product=xHCI Host Controller 	
	S: SerialNumber=1e1c0000.xhci 	
	C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr= 0mA 	
	I:* If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub 	
	E: Ad=81(I) Atr=03(Int.) MxPS= 4 Ivl=256ms 	
	******************************************************************************************************** 	
	T: Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=480 MxCh= 2 	
	B: Alloc= 0/800 us ( 0%), #Int= 0, #Iso= 0 	
	D: Ver= 2.00 Cls=09(hub ) Sub=00 Prot=01 MxPS=64 #Cfgs= 1 	
	P: Vendor=1d6b ProdID=0002 Rev= 4.04 	
	S: Manufacturer=Linux 4.4.92 xhci-hcd 	
	S: Product=xHCI Host Controller 	
	S: SerialNumber=1e1c0000.xhci 	
	C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr= 0mA 	
	I:* If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub 	
	E: Ad=81(I) Atr=03(Int.) MxPS= 4 Ivl=256ms 	
	******************************************************************************************************** 	
	T: Bus=01 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#= 2 Spd=480 MxCh= 0 	
	D: Ver= 2.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 	
	P: Vendor=1199 ProdID=9071 Rev= 0.06 	
	S: Manufacturer=Sierra Wireless, Incorporated 	
	S: Product=Sierra Wireless MC7455 Qualcomm® Snapdragon™ X7 LTE-A 	
	S: SerialNumber=LQ72070629031020 	
	C:* #Ifs= 4 Cfg#= 1 Atr=a0 MxPwr=500mA 	
	A: FirstIf#=12 IfCount= 2 Cls=02(comm.) Sub=0e Prot=00 	
	I:* If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=qcserial 	
	E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms 	
	E: Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms 	
	I:* If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=qcserial 	
	E: Ad=83(I) Atr=03(Int.) MxPS= 10 Ivl=32ms 	
	E: Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms 	
	E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms 	
	I:* If#=12 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=0e Prot=00 Driver=cdc_mbim 	
	E: Ad=85(I) Atr=03(Int.) MxPS= 64 Ivl=32ms 	
	I: If#=13 Alt= 0 #EPs= 0 Cls=0a(data ) Sub=00 Prot=02 Driver=cdc_mbim 	
	I:* If#=13 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=02 Driver=cdc_mbim 	
	E: Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms 	
	E: Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
Connection Log

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Tue May 15 18:30:25 2018 : Attempting to Connect Modem #1 (Sierra_Wireless,_Incorporated Sierra_Wireless_MC7455_Qualcomm®_Snapdragon™_X7_LTE-A)
Tue May 15 18:31:27 2018 : Attempting to Connect Modem #1 (Sierra_Wireless,_Incorporated Sierra_Wireless_MC7455_Qualcomm®_Snapdragon™_X7_LTE-A)
Tue May 15 18:34:03 2018 : Attempting to Connect Modem #1 (Sierra_Wireless,_Incorporated Sierra_Wireless_MC7455_Qualcomm®_Snapdragon™_X7_LTE-A)
Sun May 20 16:52:02 2018 : Attempting to Connect Modem #1 (Sierra_Wireless,_Incorporated Sierra_Wireless_MC7455_Qualcomm®_Snapdragon™_X7_LTE-A)
Sun May 20 17:04:08 2018 : Disconnect (Removed) Modem #1
Sun May 20 17:04:32 2018 : Attempting to Connect Modem #1 (Sierra_Wireless,_Incorporated Sierra_Wireless_MC7455_Qualcomm®_Snapdragon™_X7_LTE-A)

Re: WG3526 + MC7455: No Modem Present

Posted: Sat May 26, 2018 11:13 pm
by JimHelms
The router is seeing the modem. So that is a good thing.

Assuming your r.ispsn is the correct APN for your device, I would check to make sure it is reading the SIM.

Check out the Troubleshooting guide as it covers 95% of all issues.

Re: WG3526 + MC7455: No Modem Present

Posted: Sat May 26, 2018 11:20 pm
by yxxxbxx
JimHelms wrote: Sat May 26, 2018 11:13 pm The router is seeing the modem. So that is a good thing.

Assuming your r.ispsn is the correct APN for your device, I would check to make sure it is reading the SIM.

Check out the Troubleshooting guide as it covers 95% of all issues.
I tried the Troubleshooting Guide, too. It did not help. The SIM is problematic because there is no way to guarantee it is in correctly or making proper contact. The original guide doesn't even advise how to inset the SIM.

Re: WG3526 + MC7455: No Modem Present

Posted: Sat May 26, 2018 11:26 pm
by JimHelms
The SIM card will only fit the adapter one way. The SIM card adapter will only go into the router and lock (click ) into place one way.

What does this return:

Code: Select all

at!entercnd="A710"
at+cpin?
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