diff --git a/openhands/core/config/agent_config.py b/openhands/core/config/agent_config.py
index 43e430b879da..67fa4e9d8a5d 100644
--- a/openhands/core/config/agent_config.py
+++ b/openhands/core/config/agent_config.py
@@ -27,6 +27,6 @@ class AgentConfig(BaseModel):
     memory_enabled: bool = Field(default=False)
     memory_max_threads: int = Field(default=3)
     llm_config: str | None = Field(default=None)
-    enable_prompt_extensions: bool = Field(default=False)
+    enable_prompt_extensions: bool = Field(default=True)
     disabled_microagents: list[str] | None = Field(default=None)
     condenser: CondenserConfig = Field(default_factory=NoOpCondenserConfig)
diff --git a/openhands/core/config/sandbox_config.py b/openhands/core/config/sandbox_config.py
index 44bd7ee0afda..f5b984fec0b9 100644
--- a/openhands/core/config/sandbox_config.py
+++ b/openhands/core/config/sandbox_config.py
@@ -60,7 +60,7 @@ class SandboxConfig(BaseModel):
     runtime_startup_env_vars: dict[str, str] = Field(default_factory=dict)
     browsergym_eval_env: str | None = Field(default=None)
     platform: str | None = Field(default=None)
-    close_delay: int = Field(default=900)
+    close_delay: int = Field(default=15)
     remote_runtime_resource_factor: int = Field(default=1)
     enable_gpu: bool = Field(default=False)
     docker_runtime_kwargs: str | None = Field(default=None)
diff --git a/openhands/utils/prompt.py b/openhands/utils/prompt.py
index 1861c45308b5..1ffd4b8f117b 100644
--- a/openhands/utils/prompt.py
+++ b/openhands/utils/prompt.py
@@ -48,7 +48,8 @@ class RepositoryInfo:
 * {{ host }} (port {{ port }})
 {% endfor %}
 When starting a web server, use the corresponding ports. You should also
-set any options to allow iframes and CORS requests.
+set any options to allow iframes and CORS requests, and allow the server to
+be accessed from any host (e.g. 0.0.0.0).
 </RUNTIME_INFORMATION>
 {% endif %}
 """