connection problem to Uplink OXE

hello

FreePBX 17.0.19.9
I have the following setup:
redundant solution on the side of OXE A, OXE B uplinks
where OXE A is primarily active and OXE B is passive, in the event of a fault it switches from OXE A to OXE B.

I created two trunks. Trunk A and Trunk B. I defined both trunks in Outbound Routes for each SIP number that has the possibility to call out. Trunk A connected to OXE A - Trunk B did not connect to OXE B because it is passive, that’s OK.

Both OXEs are defined under one dns record as:
node.example.com - 192.1.1.2, 192.2.1.2

In the trunks, I have a defined ip address, not a dns name.

I have a problem when I start calling and during communication, for some reason, it switches to passive and thus does not receive a response from the passive OXE B, and the call either drops or cannot be ended.

How could I do it so that it does not switch to passive Trunk B during communication?
Thanks for any help or guidance

|No. | Timestamp | (Dir) Address | SIP Message |
|00000 | 1726574014 | * <== 192.1.1.2:5060 | OPTIONS sip:192.168.1.8:5060 SIP/2.0|
|00001 | 1726574014 | * ==> 192.1.1.2:5060 | SIP/2.0 200 OK|
|00002 | 1726574018 | * ==> 192.168.1.11:56307 | OPTIONS sip:[email protected]:56307;ob SIP/2.0|
|00003 | 1726574018 | * ==> 192.168.1.130:5060 | OPTIONS sip:[email protected]:5060 SIP/2.0|
|00004 | 1726574018 | * <== 192.168.1.11:56307 | SIP/2.0 200 OK|
|00005 | 1726574018 | * <== 192.168.1.130:5060 | SIP/2.0 200 OK|
|00006 | 1726574021 | * <== 192.168.1.11:56307 | INVITE sip:[email protected] SIP/2.0|
|00007 | 1726574021 | * ==> 192.168.1.11:56307 | SIP/2.0 401 Unauthorized|
|00008 | 1726574021 | * <== 192.168.1.11:56307 | ACK sip:[email protected] SIP/2.0|
|00009 | 1726574021 | * <== 192.168.1.11:56307 | INVITE sip:[email protected] SIP/2.0|
|00010 | 1726574021 | * ==> 192.168.1.11:56307 | SIP/2.0 100 Trying|
|00011 | 1726574021 | * ==> 192.168.1.11:56307 | SIP/2.0 183 Session Progress|
|00012 | 1726574021 | * <== 192.168.1.11:56307 | UPDATE sip:192.168.1.8:5060 SIP/2.0|
|00013 | 1726574021 | * ==> 192.168.1.11:56307 | SIP/2.0 200 OK|
|00014 | 1726574021 | * ==> 192.1.1.2:5060 | INVITE sip:[email protected]:5060 SIP/2.0|
|00015 | 1726574021 | * <== 192.1.1.2:5060 | SIP/2.0 100 Trying|
|00016 | 1726574022 | * ==> 192.168.1.130:5060 | OPTIONS sip:[email protected]:5060 SIP/2.0|
|00017 | 1726574022 | * <== 192.168.1.130:5060 | SIP/2.0 200 OK|
|00018 | 1726574023 | * <== 192.1.1.2:5060 | SIP/2.0 183 Session Progress|
|00019 | 1726574023 | * ==> 192.168.1.11:56307 | SIP/2.0 183 Session Progress|
|00020 | 1726574023 | * <== 192.168.1.11:56307 | UPDATE sip:192.168.1.8:5060 SIP/2.0|
|00021 | 1726574023 | * ==> 192.168.1.11:56307 | SIP/2.0 200 OK|
|00022 | 1726574024 | * <== 192.1.1.2:5060 | SIP/2.0 180 Ringing|
|00023 | 1726574024 | * ==> 192.168.1.11:56307 | SIP/2.0 183 Session Progress|
|00024 | 1726574025 | * ==> 192.1.1.2:5060 | OPTIONS sip:192.1.1.2:5060 SIP/2.0|
|00025 | 1726574025 | * <== 192.1.1.2:5060 | SIP/2.0 200 OK|
|00026 | 1726574025 | * <== 192.168.1.11:56307 | UPDATE sip:192.168.1.8:5060 SIP/2.0|
|00027 | 1726574025 | * ==> 192.168.1.11:56307 | SIP/2.0 200 OK|
|00028 | 1726574028 | * <== 192.1.1.2:5060 | SIP/2.0 200 OK|
|00029 | 1726574028 | * ==> 192.2.1.2:5060 | ACK sip:node.example.com:5060 SIP/2.0|
|00030 | 1726574028 | * ==> 192.168.1.11:56307 | SIP/2.0 200 OK|
|00031 | 1726574029 | * <== 192.168.1.11:56307 | ACK sip:192.168.1.8:5060 SIP/2.0|
|00032 | 1726574029 | * <== 192.168.1.11:56307 | UPDATE sip:192.168.1.8:5060 SIP/2.0|
|00033 | 1726574029 | * ==> 192.168.1.11:56307 | SIP/2.0 200 OK|
|00034 | 1726574029 | * <== 192.1.1.2:5060 | SIP/2.0 200 OK|
|00035 | 1726574029 | * ==> 192.2.1.2:5060 | ACK sip:node.example.com:5060 SIP/2.0|
|00036 | 1726574030 | * <== 192.1.1.2:5060 | SIP/2.0 200 OK|
|00037 | 1726574030 | * ==> 192.2.1.2:5060 | ACK sip:node.example.com:5060 SIP/2.0|
|00038 | 1726574032 | * <== 192.1.1.2:5060 | SIP/2.0 200 OK|
|00039 | 1726574032 | * ==> 192.2.1.2:5060 | ACK sip:node.example.com:5060 SIP/2.0|
|00040 | 1726574036 | * <== 192.1.1.2:5060 | SIP/2.0 200 OK|
|00041 | 1726574036 | * ==> 192.2.1.2:5060 | ACK sip:node.example.com:5060 SIP/2.0|
|00042 | 1726574037 | * <== 192.168.1.11:56307 | BYE sip:192.168.1.8:5060 SIP/2.0|
|00043 | 1726574037 | * ==> 192.168.1.11:56307 | SIP/2.0 200 OK|
|00044 | 1726574037 | * ==> 192.1.1.2:5060 | BYE sip:node.example.com:5060 SIP/2.0|
|00045 | 1726574037 | * <== 192.1.1.2:5060 | SIP/2.0 481 Call Leg/Transaction Does Not Exist|
|00046 | 1726574038 | * <== 192.1.1.2:5060 | OPTIONS sip:192.168.1.8:5060 SIP/2.0|
|00047 | 1726574038 | * ==> 192.1.1.2:5060 | SIP/2.0 200 OK|
|00048 | 1726574040 | * <== 192.1.1.2:5060 | SIP/2.0 200 OK|
|00049 | 1726574040 | * ==> 192.2.1.2:5060 | ACK sip:node.example.com:5060 SIP/2.0|