Hi, I havent done this in a while. I have keycloak 1.9.8 running in a server. I created a front-end and backend, front with angularjs backend with java and wildfly10. The front-end works, but when I try to send requests to my back end I get the following: 18:51:42,377 ERROR [org.keycloak.adapters.BearerTokenRequestAuthenticator] (default task-38) Failed to verify token: org.keycloak.common.VerificationException: Invalid token signature. at org.keycloak.RSATokenVerifier.toAccessToken(RSATokenVerifier .java:73) at org.keycloak.RSATokenVerifier.verifyToken(RSATokenVerifier.j ava:39) at org.keycloak.RSATokenVerifier.verifyToken(RSATokenVerifier.j ava:35) ... On my browser I get this 401 Unauthorized - http://localhost:8080/ramona-b ackend/configuracion/grabarLista", WWW-AuthenticateBearer realm="ramona", error="invalid_token", error_description="Invalid token signature."x-powered-byUndertow/1 But I can see that a token is being sent Accept application/json, text/plain, */* Accept-Encoding gzip, deflateAccept-Languageen-US,en;q=0.5 Authorization Bearer eyJhbGciOiJSUzI1NiJ9.eyJqdGkiO iI1NmQxMTg2OS02M2ZiLTQwZDEtYjllZS1jY2I0NDIxMzVlNWMiLCJleHAiOjE0 Nzk3NzI4NzEsIm5iZiI6MCwiaWF0IjoxNDc5NzcyNTcxLCJpc3MiOiJod HRwOi8vbG9jYWxob3N0OjgwODAvYXV0aC9yZWFsbXMvcmFtb25hIiwiYXVkI joicmFtb25hLWZyb250ZW5kIiwic3ViIjoiY2U1MTZiNmMtMjBmNS00NWQ2L Tk2ZjctNTE5OTliNDEyMTZkIiwidHlwIjoiQmVhcmVyIiwiYXpwIjoicmFtb 25hLWZyb250ZW5kIiwibm9uY2UiOiI4MTJhNTJmYy0xMjY4LTQwZGQtOWU0NC0w ZGQ3OTE4NjQxYjYiLCJzZXNzaW9uX3N0YXRlIjoiMzM2ZTczZWQtM2M4N S00MzZhLThmNDUtZTIzY2Q1ZDdkYTM3IiwiY2xpZW50X3Nlc3Npb24iOiI3N mVjYjRlMS1jYjVmLTRkNjYtOWU2Zi1jMTNiMTJlZGExMDAiLCJhbGxvd2VkL W9yaWdpbnMiOlsiaHR0cDovL3JhbW9uYS5sb2NhbGRvbWFpbiIsImh0dHA6L y9sb2NhbGhvc3Q6ODA4MCIsImh0dHA6Ly9sb2NhbGhvc3QiXSwicmVhbG1fYWNj ZXNzIjp7InJvbGVzIjpbInVzdWFyaW9zIl19LCJyZXNvdXJjZV9hY2Nlc 3MiOnsiYWNjb3VudCI6eyJyb2xlcyI6WyJtYW5hZ2UtYWNjb3VudCIsInZpZ XctcHJvZmlsZSJdfX0sIm5hbWUiOiJyYW1vbmEgIiwicHJlZmVycmVkX3VzZ XJuYW1lIjoicmFtb25hIiwiZ2l2ZW5fbmFtZSI6InJhbW9uYSIsImZhbWlse V9uYW1lIjoiIiwiZW1haWwiOiJqdWFuZGllZ284M0BnbWFpbC5jb20ifQ. b1Fz1R3eVW22qO83mqn-OSYxlA5pRYK-fQOPeW1TegD93_DrZXXJac7ZOlFv 2yS58KWDixffVZz47QwmF_AtMrJTZ212zuTvf6tXQjja4EVMAfSN 4ZOiXK6VvRyKkfElprwzqRkinjl5wDX-8Thw3S2efLrroMcY1qtKxRFdXzH5 Ms19-r2bW8zpxqG4V6QI7quvHGE2JlDYEiI0Vuf9UiSMd1lCy2hdIhkNU5hr yB8CX7ts2243M0kiG0KnJ6VQGZzNxfn0HHUkY3EIhb07xgbnBqiCX-SgVwJOLBSxSmQ 9_wVXyOAK6ZoZK-59NaSDn7gDj5CNoXa9I4USGEXRyg Host localhost:8080 Origin http://ramona.localdomain Referer http://ramona.localdomain/configuracionUser-AgentMozilla/5.0 (X11; Fedora; Linux x86_64; rv:49.0) Gecko/20100101 Firefox/49.0 the front end is public the backend is bearer only in the same realm Web Origins is http://ramona.localdomain http://localhost:8080 http://localhost and valid redirect uris Thanks, JD