在fabric更新锚节点时显示无法连接到orderer.example.com:7050，这该怎么修改啊，已经好久没有找到解决办法了

Question

bash-5.0# peer channel update -o orderer.example.com:7050 -c mychannel -f ./channel-artifacts/Org2MSPanchors.tx --tls --cafile /opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/ordererOrganizations/example.com/orderers/orderer.example.com/msp/tlscacerts/tlsca.example.com-cert.pem
2021-11-08 05:02:38.393 UTC [channelCmd] InitCmdFactory -> INFO 001 Endorser and orderer connections initialized
Error: Error getting broadcast client: orderer client failed to connect to orderer.example.com:7050: failed to create new connection: context deadline exceeded