今天iOS获取不了群信息，安卓可以

今天iOS获取不了群信息，自动登录也比平常慢
XDHttpManager::httpWithApiAfterAppkey:httpMethod:headers:parameters:timeout:retryCount:error: --- error: 连接建立失败.
 [[EaseMob sharedInstance].chatManager asyncFetchGroupInfo:_chatGroup.groupId completion:^(EMGroup *group, EMError *error) {

        dispatch_async(dispatch_get_main_queue(), ^{

            [weakSelf hideHud];

            if (!error) {

                weakSelf.chatGroup = group;

                [weakSelf reloadDataSource];

            }

            else{

                [weakSelf showHint:NSLocalizedString(@"group.fetchInfoFail", @"failed to get the group details, please try again later")];

            }

        });

    } onQueue:nil];