How to use HIGH security connection

Hi,

thank you for your prompt reply,

our meter manufacturer provided the attached file and we need to verify that the GUK is the same needed block cipher key.

kindly note that the low security passed successfully.

Hi

I am using these settings and still have the same issue. ("Connection is permanently
rejected, The application context name is not supported").
the client address and the key as provided by the manufacturer.

mDevice.setManufacturer("KFM");
mDevice.setStartProtocol(StartProtocolType.IEC);
mDevice.setWaitTime(7);
mDevice.setAuthentication(Authentication.HIGH_GMAC);
mDevice.setSecurity(Security.AUTHENTICATION_ENCRYPTION);
mDevice.setSystemTitle( "4B464DD0755D4CE1");
mDevice.setAuthenticationKey("FEE0FEE0FEE0FEE0FEE0FEE0FEE0FEE0");
mDevice.setClientAddress(12);
mDevice.setAddressType(HDLCAddressType.DEFAULT);
mDevice.setPhysicalAddress(16);
mDevice.setLogicalAddress(1);
mClient.getCiphering().setSystemTitle(GXCommon.hexToBytes("4B464DD0055D4CE1"));
mClient.getCiphering().setSecurity(Security.AUTHENTICATION_ENCRYPTION);
mClient.getCiphering().setSecuritySuite(SecuritySuite.AES_GCM_128); mClient.getCiphering().setAuthenticationKey(GXCommon.hexToBytes("FEE0FEE0FEE0FEE0FEE0FEE0FEE0FEE0") );

Hi

I tried the below log and chared with the manufacturer and told me the issue in some commands requests security 0 not 5

<- ١٥:١٧:٤٤.٤٠٧ 2F 3F 21 0D 0A
->١٥:١٧:٤٥.٠٩٢ 2F 41 45 43 35 5C 32 0D 0A
<- ١٥:١٧:٤٥.١١٥ 06 32 35 32 0D 0A
<- ١٥:١٧:٤٦.٧٢٣ 7E A0 0A 00 02 00 21 19 93 C2 BC 7E
-> ١٥:١٧:٤٦.٨٣٢ 7E A0 23 19 00 02 00 21 73 CE 10 81 80 14 05 02 05 DC 06 02 05 DC 07 04 00 00 00 01 08 04 00 00 00 01 A9 0D 7E
<- ١٥:١٧:٤٦.٨٨٥ 7E A0 6E 00 02 00 21 19 10 A2 C1 E6 E6 00 60 5D A1 09 06 07 60 85 74 05 08 01 03 A6 0A 04 08 41 45 43 01 01 CE A7 7C 8A 02 07 80 8B 07 60 85 74 05 08 02 05 AC 12 80 10 26 07 65 3F 4A 67 18 4F 5F 2D 19 00 75 1C 2F 19 BE 23 04 21 21 1F 30 00 00 00 0D 68 A9 12 AB F8 D7 D7 9B 1B 8B B6 17 6F BA 89 86 37 9E 0D 69 18 93 12 44 71 5F 36 7D 7E
-> ١٥:١٧:٤٧.٢٥٥ 7E A0 72 19 00 02 00 21 30 4B 8D E6 E7 00 61 61 A1 09 06 07 60 85 74 05 08 01 03 A2 03 02 01 00 A3 05 A1 03 02 01 0E A4 0A 04 08 41 45 43 01 01 CE A7 7C 88 02 07 80 89 07 60 85 74 05 08 02 05 AA 0A 80 08 6B 54 44 43 75 70 56 49 BE 23 04 21 28 1F 30 00 00 00 0B CA 98 26 32 D5 B0 2D 13 BF AA F7 C0 7A 77 D8 8C 90 AB 98 01 71 57 B6 69 44 5D BC 0C 7E
<- ١٥:١٧:٥٧.١٥٨ 7E A0 42 00 02 00 21 19 32 AB 11 E6 E6 00 CB 31 30 00 00 00 0E D8 53 96 59 FE 1D FD 21 11 F8 E3 74 E2 37 99 0D 60 FB DD 0E 93 7E CF EA A7 4D 4A 8A 98 7F 27 B8 6A 5C 36 79 6D 1A A7 85 8C B8 6C A1 F1 86 7E
-> ١٥:١٧:٥٧.٥٧٧ 7E A0 29 19 00 02 00 21 52 12 C9 E6 E7 00 CF 18 30 00 00 00 0C DD 96 49 0B 37 19 3A DD 4A 77 11 C5 A3 9C 30 90 A2 A7 37 F8 F9 7E

and the code I used is for Association and working with other meters.
do you have any advice?
code:

GXReplyData reply = new GXReplyData();
byte[] data = mClient.snrmRequest();
if (data.length != 0) {
readDLMSPacket(mDevice,mClient, data, reply);
mClient.parseUAResponse(reply.getData());
}
reply.clear();
for (byte[] it : mClient.aarqRequest()) {
readDLMSPacket( mDevice, mClient,it, reply);
}
mClient.parseAareResponse(reply.getData());
reply.clear();
if (mClient.getIsAuthenticationRequired()) {
for (byte[] it : mClient.getApplicationAssociationRequest()) {
readDLMSPacket(mDevice, mClient, it, reply);
}
mClient.parseApplicationAssociationResponse(reply.getData());
}

Hi,

thank you for the replay.

I already read the invocation counter and increased it and there are other meters from different brands working correctly. but this meter not working and the manufacturer sends me the above comment and I'm not sure he catches the issue.
here is my code
_mClient.getCiphering().setSecurity(Security.AUTHENTICATION_ENCRYPTION);
_mClient.getCiphering().setSecuritySuite(SecuritySuite.AES_GCM_128);
_mClient.getCiphering().setInvocationCounter(33);
and this is the Invocation counter OBIS "0.0.43.1.5.255"

Best Regards