dubbo+nacos部署到服务器上注册失败？

本地项目能够正常跑起来，然后我把项目jar包和nacos上传到服务器上跑，出现了错误：日志显示是无法注册成功。但是我服务器上的nacos已经能够正常访问，nacos telnet也能连通。项目的配置文件中nacos配置地址是服务器内网地址。8848,9848,9849端口都已放开。dubbo版本3.09，nacos版本2.1.0.（应该不是版本的问题，本地项目是能跑的）。

pom.xml

<!-- https://mvnrepository.com/artifact/org.apache.dubbo/dubbo -->
        <dependency>
            <groupId>org.apache.dubbo</groupId>
            <artifactId>dubbo</artifactId>
            <version>3.0.9</version>
        </dependency>
        <dependency>
            <groupId>com.alibaba.nacos</groupId>
            <artifactId>nacos-client</artifactId>
            <version>2.1.0</version>
        </dependency>

provider:

错误日志：

ClientAuthService com.alibaba.nacos.client.auth.ram.RamClientAuthServiceImpl success.
2023-08-13 21:59:30.343 ERROR 7132 --- [           main] o.a.d.c.s.n.NacosDynamicConfiguration    :  [DUBBO] http error, code=403,msg=unknown user!,dataId=dubbo.properties,group=dubbo,tenant=, dubbo version: 3.0.9, current host: x.x.x.x
2023-08-13 21:59:30.350 ERROR 7132 --- [           main] o.a.d.c.s.n.NacosDynamicConfiguration    :  [DUBBO] http error, code=403,msg=unknown user!,dataId=dubbo.properties,group=dubbo-springboot-demo-provider,tenant=, dubbo version: 3.0.9, current host: x.x.x.x

2023-08-13 21:59:37.315 ERROR 7132 --- [           main] o.a.d.c.deploy.DefaultModuleDeployer     :  [DUBBO] Dubbo Module[1.1.1] start failed: java.lang.IllegalStateException: Failed to register dubbo://x.x.x.x:20880/com.cz.czapicommon.service.InnerInterfaceInfoService?anyhost=true&application=dubbo-springboot-demo-provider&background=false&deprecated=false&dubbo=2.0.2&dynamic=true&generic=false&interface=com.cz.czapicommon.service.InnerInterfaceInfoService&methods=getInterfaceInfo&pid=7132&release=3.0.9&revision=0.0.1&service-name-mapping=true&side=provider&timestamp=1691935176321 to registry x.x.x.x:8848, cause: Failed to register dubbo://x.x.x.x:20880/com.cz.czapicommon.service.InnerInterfaceInfoService?anyhost=true&application=dubbo-springboot-demo-provider&background=false&deprecated=false&dubbo=2.0.2&dynamic=true&generic=false&interface=com.cz.czapicommon.service.InnerInterfaceInfoService&methods=getInterfaceInfo&pid=7132&release=3.0.9&revision=0.0.1&service-name-mapping=true&side=provider&timestamp=1691935176321 to nacos nacos://x.x.x.x:8848/org.apache.dubbo.registry.RegistryService?REGISTRY_CLUSTER=nacos-registry&application=dubbo-springboot-demo-provider&dubbo=2.0.2&interface=org.apache.dubbo.registry.RegistryService&pid=7132&release=3.0.9, cause: Request nacos server failed: , dubbo version: 3.0.9, current host: x.x.x.x

Caused by: org.apache.dubbo.rpc.RpcException: Failed to register dubbo://x.x.x.x:20880/com.cz.czapicommon.servic

Caused by: com.alibaba.nacos.api.exception.NacosException: Request nacos server failed:

Caused by: com.alibaba.nacos.api.exception.NacosException: unknown user!

telnet:共网IP 8848 能够连通内网IP 8848 不能连通内网IP 20880 不能连通（日志中报错也显示了注册失败到内网IP 20880）localhost 20880 毫无疑问能够连通不过是换了个ip,就无法连通了。。所以我怀疑是不是这里不能连通导致的错误。。但是要怎么去进一步排查解决，求大佬解惑。。