Hello, I recently replace my small “mobil 4g router” Tenda (without network problem) for a better router : one TP-Link MR550. He work but, for a short time :  he lost 4G connection three time in ten days and need to be restart for connecting.  Here a part of logs (What can I do ? Change configuration or replace it. Thx by advance) :

(I modify the link a2bouygtelcom for the forum)

2023-12-23 10:16:09 [6] 4G: USER: Get ISP's profile now.

2023-12-23 10:16:09 [6] 4G: USER: GetCurrProf result is:ipver:0  staticApn:0  authType:2  pkgName:Bouygues Telecom Pro.  profname:Bouygues Telecom Pro.  apn:a2bouygtelcom  usr:  psw:  

2023-12-23 10:16:09 [6] 4G: ERROR: SIM short_spn is Bouygues Telecom, coding=0.

2023-12-23 10:16:09 [6] 4G: ERROR: SIM GID1 is FF len=2

2023-12-23 10:16:09 [6] 4G: USER: Get ISP's profile now.

2023-12-23 10:16:09 [6] 4G: USER: GetCurrProf result is:ipver:0  staticApn:0  authType:2  pkgName:Bouygues Telecom Pro.  profname:Bouygues Telecom Pro.  apn:a2bouygtelcom  usr:  psw:  

2023-12-23 10:16:09 [6] 4G: ERROR: at_msg=+CGDCONT: 0,"IP","","100.127.20.60",0,0,0,0

+CGDCONT: 1,"IP","","100.127.20.60",0,0,0,0

+CGDCONT: 2,"IP","a2bouygtelcom","0.0.0.0",0,0,0,0

+CGDCONT: 3,"IPV4V6","","0.0.0.0,0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0",0,0,0

2023-12-23 10:16:09 [6] 4G: USER: Get ISP's profile now.

2023-12-23 10:16:09 [6] 4G: USER: GetCurrProf result is:ipver:0  staticApn:0  authType:2  pkgName:Bouygues Telecom Pro.  profname:Bouygues Telecom Pro.  apn:a2bouygtelcom  usr:  psw:  

2023-12-23 10:16:09 [6] 4G: USER: Attach ip type is IPV4.

2023-12-23 10:16:24 [6] 4G: USER: Fail to connect to the network, start autoconnect!