Gl-x3000 Spitz - Daily reverting to 3g. 5gnsa only after reboot

Two months ago I started getting problems with router reverting 3G every day. When I reboot the router it connects normally to 5GNSA.

Firmware 0704release5
Module RM520NGLAAR03A04M4G

I also reconnected external antennas to diferent connectors - still the same.

System log shows:
Mon Apr 14 13:14:37 2025 daemon.notice netifd: modem_0001 (13088): [04-14_13:13:37:172] trying to get ipv6 address
Mon Apr 14 13:14:37 2025 daemon.notice netifd: modem_0001 (13088): [04-14_13:13:37:177] requestSetupDataCall QMUXResult = 0x1, QMUXError = 0xe
Mon Apr 14 13:14:37 2025 daemon.notice netifd: modem_0001 (13088): [04-14_13:13:37:177] call_end_reason is 1
Mon Apr 14 13:14:37 2025 daemon.notice netifd: modem_0001 (13088): [04-14_13:13:37:177] call_end_reason_type is 2
Mon Apr 14 13:14:37 2025 daemon.notice netifd: modem_0001 (13088): [04-14_13:13:37:177] call_end_reason_verbose is 210
Mon Apr 14 13:14:37 2025 daemon.notice netifd: modem_0001 (13088): [04-14_13:13:37:177] try to requestSetupDataCall 60 second later
Mon Apr 14 13:14:37 2025 daemon.notice netifd: modem_0001 (13088): [04-14_13:13:37:177] your sim card may not support ipv6, please contact your carrier
Mon Apr 14 13:14:37 2025 daemon.notice netifd: modem_0001 (13088): [04-14_13:13:37:177] check whether the sim card has obtained an ipv6 address. AT command 'AT+CGPADDR'

I experienced similiar issue and others with the modem in my GL-X3000.

It might not help you but I would recommend trying to disable "Network acceleration" and updating your 5G module.

I documented my steps here: GL-X3000 Spitz AX Cellular connection keeps loading and not connected - #6 by onni

Thanks for the info. I disabled network acceleration, and in Luci under network interfaces switched dhcpv6 to dhcp client. Now I need to wait and see

Disabling dhcpv6 in Luci under network interfaces didn't solve anything. Still got kicked to 3G again today and had to reboot. Anyone with an idea?

Hello,do you use a traditional sim card or use esim service? When router switches to 3G network, could you download the modem-debug file from admin panel->INTERNET->Cellular->Modem Management and share it with us to check?

I am using a traditional physical SIM card. Yesterday i locked the tower to 4g main cell and i remained connected to the 5gnsa until an hour ago. This time it didn't revert to 3g, but just lost the connection until i unlocked. Then it was connected to 3g. After that i rebooted the modem and currently i am connected to 4G via national roaming.


I exported modem debug json but i cannot upload it here

{
"msgs": [
{
"cmd": "AT",
"result": "\r\nOK\r\n"
},
{
"cmd": "ATI",
"result": "\r\nQuectel\r\nRM520N-GL\r\nRevision: RM520NGLAAR03A04M4G\r\n\r\nOK\r\n"
},
{
"cmd": "AT+GMI",
"result": "\r\nQuectel\r\n\r\nOK\r\n"
},
{
"cmd": "AT+CIMI",
"result": "\r\n219020101621152\r\n\r\nOK\r\n"
},
{
"cmd": "AT+CPIN?",
"result": "\r\n+CPIN: READY\r\n\r\nOK\r\n"
},
{
"cmd": "AT+CREG",
"result": "\r\nOK\r\n"
},
{
"cmd": "AT+CSQ",
"result": "\r\n+CSQ: 28,99\r\n\r\nOK\r\n"
},
{
"cmd": "AT+GSN",
"result": "\r\n016442006784975\r\n\r\nOK\r\n"
},
{
"cmd": "AT+COPS?",
"result": "\r\n+COPS: 0,0,"HT HR",7\r\n\r\nOK\r\n"
},
{
"cmd": "AT+QGMR",
"result": "\r\nRM520NGLAAR03A04M4G_01.204.01.204\r\n\r\nOK\r\n"
},
{
"cmd": "AT+CSUB",
"result": "\r\nSubEdition: V01\r\n\r\nOK\r\n"
},
{
"cmd": "AT+QMBNCFG="list"",
"result": "\r\n+QMBNCFG: "List",0,1,1,"ROW_Commercial",0x0A010809,202401151\r\n+QMBNCFG: "List",1,0,0,"TEF_Spain_Commercial",0x0A010C00,202302071\r\n+QMBNCFG: "List",2,0,0,"FirstNet",0x0A015300,202206171\r\n+QMBNCFG: "List",3,0,0,"Rogers_Canada",0x0A014800,202303141\r\n+QMBNCFG: "List",4,0,0,"Bell_Canada",0x0A014700,202409201\r\n+QMBNCFG: "List",5,0,0,"Telus_Jasper_Canada",0x0A01F900,202304281\r\n+QMBNCFG: "List",6,0,0,"Telus_Consumer_Canada",0x0A01FA00,202304281\r\n+QMBNCFG: "List",7,0,0,"Commercial-Sprint",0x0A010204,202111051\r\n+QMBNCFG: "List",8,0,0,"Commercial-TMO",0x0A01050F,202402061\r\n+QMBNCFG: "List",9,0,0,"VoLTE-ATT",0x0A010335,202206171\r\n+QMBNCFG: "List",10,0,0,"CDMAless_Private-Verizon",0x0A01FD28,202409201\r\n+QMBNCFG: "List",11,0,0,"CDMAless-Verizon",0x0A010126,202409201\r\n+QMBNCFG: "List",12,0,0,"Swiss-Comm",0x0A010411,202304261\r\n+QMBNCFG: "List",13,0,0,"Telia_Sweden",0x0A012400,202111051\r\n+QMBNCFG: "List",14,0,0,"TIM_Italy_Commercial",0x0A012B00,202111051\r\n+QMBNCFG: "List",15,0,0,"France-Commercial-Orange",0x0A010B21,202409181\r\n+QMBNCFG: "List",16,0,0,"Commercial-DT-VOLTE",0x0A011F1F,202409181\r\n+QMBNCFG: "List",17,0,0,"Germany-VoLTE-Vodafone",0x0A010449,202401201\r\n+QMBNCFG: "List",18,0,0,"UK-VoLTE-Vodafone",0x0A010426,202401201\r\n+QMBNCFG: "List",19,0,0,"Commercial-EE",0x0A01220B,202409041\r\n+QMBNCFG: "List",20,0,0,"Optus_Australia_Commercial",0x0A014400,202111051\r\n+QMBNCFG: "List",21,0,0,"Telstra_Australia_Commercial",0x0A010F00,202311071\r\n+QMBNCFG: "List",22,0,0,"Commercial-LGU",0x0A012608,202111051\r\n+QMBNCFG: "List",23,0,0,"Commercial-KT",0x0A01280B,202308031\r\n+QMBNCFG: "List",24,0,0,"Commercial-SKT",0x0A01270A,202111051\r\n+QMBNCFG: "List",25,0,0,"Commercial-Reliance",0x0A011B0C,202210211\r\n+QMBNCFG: "List",26,0,0,"Commercial-SBM",0x0A011C0B,202409021\r\n+QMBNCFG: "List",27,0,0,"Commercial-KDDI",0x0A010709,202401191\r\n+QMBNCFG: "List",28,0,0,"Commercial-DCM",0x0A010D0D,202312201\r\n+QMBNCFG: "List",29,0,0,"VoLTE-CU",0x0A011561,202310181\r\n+QMBNCFG: "List",30,0,0,"VoLTE_OPNMKT_CT",0x0A0113E0,202312141\r\n+QMBNCFG: "List",31,0,0,"Volte_OpenMkt-Commercial-CMCC",0x0A012010,202408281\r\n\r\nOK\r\n"
},
{
"cmd": "AT+QENG="servingcell"",
"result": "\r\n+QENG: "servingcell","NOCONN","LTE","FDD",219,01,B752109,174,500,1,5,5,1004,-95,-7,-60,20,15,90,-\r\n\r\nOK\r\n"
},
{
"cmd": "AT+QENG="neighbourcell"",
"result": "\r\n+QENG: "neighbourcell intra","LTE",500,174,-7,-95,-59,-,-,-,-,-,-\r\n+QENG: "neighbourcell inter","LTE",6300,174,-13,-73,-52,-,-,-,-,-\r\n+QENG: "neighbourcell inter","LTE",6300,176,-16,-79,-52,-,-,-,-,-\r\n+QENG: "neighbourcell inter","LTE",1300,174,-7,-86,-70,-,-,-,-,-\r\n+QENG: "neighbourcell inter","LTE",1300,176,-20,-100,-69,-,-,-,-,-\r\n+QENG: "neighbourcell inter","LTE",1450,174,-8,-93,-78,-,-,-,-,-\r\n+QENG: "neighbourcell inter","LTE",1450,176,-20,-107,-78,-,-,-,-,-\r\n\r\nOK\r\n"
},
{
"cmd": "AT+QCFG="usbnet"",
"result": "\r\n+QCFG: "usbnet",0\r\n\r\nOK\r\n"
},
{
"cmd": "AT+QNWPREFCFG="mode_pref"",
"result": "\r\n+QNWPREFCFG: "mode_pref",AUTO\r\n\r\nOK\r\n"
},
{
"cmd": "AT+QNWPREFCFG="nsa_nr5g_band"",
"result": "\r\n+QNWPREFCFG: "nsa_nr5g_band",1:2:3:5:7:8:12:13:14:18:20:25:26:28:29:30:38:40:41:48:66:70:71:75:76:77:78:79\r\n\r\nOK\r\n"
},
{
"cmd": "AT+QCFG="pcie/mode"",
"result": "\r\n+QCFG: "pcie/mode",0\r\n\r\nOK\r\n"
},
{
"cmd": "AT+QCFG="data_interface"",
"result": "\r\n+QCFG: "data_interface",1,0\r\n\r\nOK\r\n"
},
{
"cmd": "AT+QCAINFO",
"result": "\r\n+QCAINFO: "PCC",500,100,"LTE BAND 1",1,174,-95,-7,-60,20\r\n+QCAINFO: "SCC",1300,100,"LTE BAND 3",1,174,-86,-7,-70,14,0,-,-\r\n+QCAINFO: "SCC",1450,50,"LTE BAND 3",1,174,-93,-8,-78,18,0,-,-\r\n+QCAINFO: "SCC",6300,50,"LTE BAND 20",1,174,-73,-13,-52,12,0,-,-\r\n\r\nOK\r\n"
},
{
"cmd": "AT+CEREG?",
"result": "\r\n+CEREG: 0,1\r\n\r\nOK\r\n"
}
]
}

Hello, it's possible that this base station has interference or poor signal. The sim card can't be registered after the card has been working for some time. Could you please check this cell info here to see if the Cell Tower ID is the same before and after the router restart?

Alternatively, can you check if you can find the same cell towe in the available tower list when this error occurs?