Radios perdendo comunicação na bridge mas permanecem conectados ao EPMP-1000

Bom dia a todos,

estou com problema em uma torre, em 2 radios EPMP-1000.
Uso pra transmissão de câmeras de monitoramento no município, após um tempo conectados elas perdem comunicação com a central, ao acessar o rádio estão todos conectados mas não repassam na bridge. Consultei o log e nada aparentemente critico acontece.

Sep 1 22:21:35 AP3SJLSEGURA DEVICE-AGENT[2708]: [src/epmp.c:182 json_config_show] request failed, ret = 2 (Param not found)
Sep 1 22:27:32 AP3SJLSEGURA DEVICE-AGENT[2708]: [src/epmp.c:182 json_config_show] request failed, ret = 2 (Param not found)
Sep 1 22:32:47 AP3SJLSEGURA mgtcomd: Received unknown message from 00:04:56:C5:FB:9E: {
Sep 1 22:32:47 AP3SJLSEGURA mgtcomd: Received unknown message from 00:04:56:C5:FB:9E: {
Sep 1 22:32:48 AP3SJLSEGURA mgtcomd: Received unknown message from 00:04:56:C5:FB:9E: {
Sep 1 22:32:48 AP3SJLSEGURA mgtcomd: Received unknown message from 00:04:56:C5:FB:9E: {
Sep 1 22:32:48 AP3SJLSEGURA mgtcomd: Received unknown message from 00:04:56:C5:FB:9E: {
Sep 1 22:32:48 AP3SJLSEGURA mgtcomd: Received unknown message from 00:04:56:C5:FB:9E: {
Sep 1 22:33:17 AP3SJLSEGURA DEVICE-AGENT[2708]: [src/epmp.c:182 json_config_show] request failed, ret = 2 (Param not found)
Sep 1 22:38:35 AP3SJLSEGURA DEVICE-AGENT[2708]: [src/epmp.c:182 json_config_show] request failed, ret = 2 (Param not found)
Sep 1 22:43:44 AP3SJLSEGURA DEVICE-AGENT[2708]: [src/epmp.c:182 json_config_show] request failed, ret = 2 (Param not found)
Sep 1 22:48:48 AP3SJLSEGURA DEVICE-AGENT[2708]: [src/epmp.c:182 json_config_show] request failed, ret = 2 (Param not found)
Sep 1 22:49:01 AP3SJLSEGURA mgtcomd: Received unknown message from 00:04:56:C5:FB:9E: {
Sep 1 22:49:01 AP3SJLSEGURA mgtcomd: Received unknown message from 00:04:56:C5:FB:9E: {
Sep 1 22:49:01 AP3SJLSEGURA mgtcomd: Received unknown message from 00:04:56:C5:FB:9E: {
Sep 1 22:49:01 AP3SJLSEGURA mgtcomd: Received unknown message from 00:04:56:C5:FB:9E: {
Sep 1 22:49:02 AP3SJLSEGURA mgtcomd: Received unknown message from 00:04:56:C5:FB:9E: {
Sep 1 22:49:02 AP3SJLSEGURA mgtcomd: Received unknown message from 00:04:56:C5:FB:9E: {
Sep 1 22:54:39 AP3SJLSEGURA DEVICE-AGENT[2708]: [src/epmp.c:182 json_config_show] request failed, ret = 2 (Param not found)
Sep 1 23:00:10 AP3SJLSEGURA DEVICE-AGENT[2708]: [src/epmp.c:182 json_config_show] request failed, ret = 2 (Param not found)
Sep 1 23:05:05 AP3SJLSEGURA mgtcomd: Received unknown message from 00:04:56:C5:FB:9E: {
Sep 1 23:05:05 AP3SJLSEGURA mgtcomd: Received unknown message from 00:04:56:C5:FB:9E: {
Sep 1 23:05:06 AP3SJLSEGURA mgtcomd: Received unknown message from 00:04:56:C5:FB:9E: {
Sep 1 23:05:06 AP3SJLSEGURA mgtcomd: Received unknown message from 00:04:56:C5:FB:9E: {
Sep 1 23:05:06 AP3SJLSEGURA mgtcomd: Received unknown message from 00:04:56:C5:FB:9E: {
Sep 1 23:05:06 AP3SJLSEGURA mgtcomd: Received unknown message from 00:04:56:C5:FB:9E: {
Sep 1 23:05:57 AP3SJLSEGURA DEVICE-AGENT[2708]: [src/epmp.c:182 json_config_show] request failed, ret = 2 (Param not found)
Sep 1 23:11:47 AP3SJLSEGURA DEVICE-AGENT[2708]: [src/epmp.c:182 json_config_show] request failed, ret = 2 (Param not found)
Sep 1 23:16:56 AP3SJLSEGURA DEVICE-AGENT[2708]: [src/epmp.c:182 json_config_show] request failed, ret = 2 (Param not found)
Sep 1 23:21:52 AP3SJLSEGURA mgtcomd: Received unknown message from 00:04:56:C5:FB:9E: {
Sep 1 23:21:53 AP3SJLSEGURA mgtcomd: Received unknown message from 00:04:56:C5:FB:9E: {
Sep 1 23:21:53 AP3SJLSEGURA mgtcomd: Received unknown message from 00:04:56:C5:FB:9E: {
Sep 1 23:21:53 AP3SJLSEGURA mgtcomd: Received unknown message from 00:04:56:C5:FB:9E: {
Sep 1 23:21:53 AP3SJLSEGURA mgtcomd: Received unknown message from 00:04:56:C5:FB:9E: {
Sep 1 23:21:53 AP3SJLSEGURA mgtcomd: Received unknown message from 00:04:56:C5:FB:9E: {
Sep 1 23:22:54 AP3SJLSEGURA DEVICE-AGENT[2708]: [src/epmp.c:182 json_config_show] request failed, ret = 2 (Param not found)

Ja testei todas as versões de firmware mas o mesmo problema se repete em todas, problema acontecendo em 02 EPMP-1000 GPS Sync na mesma torre, um terceiro rádio funciona normalmente com as mesmas configurações.