Что ж, давайте посмотрим. Вот лог по IP адресу
Fri Jul 17 15:02:54 2020 46.159.141.168:49426 TLS: Initial packet from [AF_INET]46.159.141.168:49426, sid=7652cd1f c436da64
Fri Jul 17 15:02:54 2020 46.159.141.168:49426 peer info: IV_VER=2.3.12
Fri Jul 17 15:02:54 2020 46.159.141.168:49426 peer info: IV_PLAT=linux
Fri Jul 17 15:02:54 2020 46.159.141.168:49426 peer info: IV_PROTO=2
Fri Jul 17 15:02:54 2020 46.159.141.168:49426 PLUGIN_CALL: POST /usr/lib/openvpn/radiusplugin.so/PLUGIN_AUTH_USER_PASS_VERIFY status=0
Fri Jul 17 15:02:54 2020 46.159.141.168:49426 TLS: Username/Password authentication succeeded for username 'user1061' [CN SET]
Fri Jul 17 15:02:54 2020 46.159.141.168:49426 Data Channel Encrypt: Cipher 'AES-128-CBC' initialized with 128 bit key
Fri Jul 17 15:02:54 2020 46.159.141.168:49426 Data Channel Encrypt: Using 160 bit message hash 'SHA1' for HMAC authentication
Fri Jul 17 15:02:54 2020 46.159.141.168:49426 Data Channel Decrypt: Cipher 'AES-128-CBC' initialized with 128 bit key
Fri Jul 17 15:02:54 2020 46.159.141.168:49426 Data Channel Decrypt: Using 160 bit message hash 'SHA1' for HMAC authentication
Fri Jul 17 15:02:54 2020 46.159.141.168:49426 Control Channel: TLSv1.2, cipher TLSv1/SSLv3 ECDHE-RSA-AES256-GCM-SHA384
Fri Jul 17 15:02:54 2020 46.159.141.168:49426 [user1061] Peer Connection Initiated with [AF_INET]46.159.141.168:49426
Fri Jul 17 15:02:54 2020 user1061/46.159.141.168:49426 OPTIONS IMPORT: reading client specific options from: ccd/user1061
Fri Jul 17 15:02:55 2020 user1061/46.159.141.168:49426 PLUGIN_CALL: POST /usr/lib/openvpn/radiusplugin.so/PLUGIN_CLIENT_CONNECT status=0
Fri Jul 17 15:02:55 2020 user1061/46.159.141.168:49426 OPTIONS IMPORT: reading client specific options from: /tmp/openvpn_cc_a84d63fe88a39ecd3b32024a90f233bb.tmp
Fri Jul 17 15:02:56 2020 user1061/46.159.141.168:49426 OPTIONS IMPORT: reading client specific options from: /tmp/openvpn_cc_f91ad41544a54c27ed70ba2b13c090b2.tmp
Fri Jul 17 15:02:56 2020 user1061/46.159.141.168:49426 MULTI: Learn: 172.16.3.76 -> user1061/46.159.141.168:49426
Fri Jul 17 15:02:56 2020 user1061/46.159.141.168:49426 MULTI: primary virtual IP for user1061/46.159.141.168:49426: 172.16.3.76
Fri Jul 17 15:02:56 2020 user1061/46.159.141.168:49426 MULTI: internal route 192.168.3.0/24 -> user1061/46.159.141.168:49426
Fri Jul 17 15:02:56 2020 user1061/46.159.141.168:49426 MULTI: Learn: 192.168.3.0/24 -> user1061/46.159.141.168:49426
Fri Jul 17 15:02:57 2020 user1061/46.159.141.168:49426 PUSH: Received control message: 'PUSH_REQUEST'
Fri Jul 17 15:02:57 2020 user1061/46.159.141.168:49426 SENT CONTROL [user1061]: 'PUSH_REPLY,route-gateway 172.16.0.1,topology subnet,ping 10,ping-restart 120,route 192.168.1.0 255.255.255.0,ifconfig 172.16.3.76 255.255.0.0,peer-id 0' (status=1)
Fri Jul 17 15:03:09 2020 46.159.141.168:26943 TLS: Initial packet from [AF_INET]46.159.141.168:26943, sid=203198e6 c06c376a
Fri Jul 17 15:03:09 2020 46.159.141.168:26943 peer info: IV_VER=2.3.12
Fri Jul 17 15:03:09 2020 46.159.141.168:26943 peer info: IV_PLAT=linux
Fri Jul 17 15:03:09 2020 46.159.141.168:26943 peer info: IV_PROTO=2
Fri Jul 17 15:03:10 2020 46.159.141.168:26943 PLUGIN_CALL: POST /usr/lib/openvpn/radiusplugin.so/PLUGIN_AUTH_USER_PASS_VERIFY status=1
Fri Jul 17 15:03:10 2020 46.159.141.168:26943 PLUGIN_CALL: plugin function PLUGIN_AUTH_USER_PASS_VERIFY failed with status 1: /usr/lib/openvpn/radiusplugin.so
Fri Jul 17 15:03:10 2020 46.159.141.168:26943 TLS Auth Error: Auth Username/Password verification failed for peer
Fri Jul 17 15:03:10 2020 46.159.141.168:26943 Control Channel: TLSv1.2, cipher TLSv1/SSLv3 ECDHE-RSA-AES256-GCM-SHA384
Fri Jul 17 15:03:10 2020 46.159.141.168:26943 Peer Connection Initiated with [AF_INET]46.159.141.168:26943
Fri Jul 17 15:03:13 2020 46.159.141.168:26943 PUSH: Received control message: 'PUSH_REQUEST'
Fri Jul 17 15:03:13 2020 46.159.141.168:26943 Delayed exit in 5 seconds
Fri Jul 17 15:03:13 2020 46.159.141.168:26943 SENT CONTROL [UNDEF]: 'AUTH_FAILED' (status=1)
Fri Jul 17 15:03:18 2020 46.159.141.168:26943 SIGTERM[soft,delayed-exit] received, client-instance exiting
Fri Jul 17 15:06:57 2020 user1061/46.159.141.168:49426 [user1061] Inactivity timeout (--ping-restart), restarting
Fri Jul 17 15:06:57 2020 user1061/46.159.141.168:49426 SIGUSR1[soft,ping-restart] received, client-instance restarting
Судя по этому логу соединения, на самом деле, не было. Из-за того, что не пройдена аутентификация в 15:03:10 (ошибка)
Однако и отключения не было, что странно.
Отключение фактически произошло в 15-06 по истечение таймаута неактивности.
Вообще ситуация очень странна, такое впечатление что они на разных языках разговаривают.
Можем поступить следующим образом. Поменяйте пароль на 12345 для туннеля 1061 и я подключусь своим устройством. Посмотрим что будет.