How to make sure AIs don't go through walls?

I am currently developing a 2D Dungeon Crawler game. I have a simple enemy AI for the dungeon, but when it is in 'Wander' mode, it is able to simply move through walls and into other rooms, even though they both have BoxCollider2D and Rigidbody2D. I am still new to Unity, so I'm not sure how to make sure this happens.

Here is my Inspector for walls:

Here is my inspector for my enemy:

I am also including my AI script in case it helps: using System.Collections; using System.Collections.Generic; using UnityEngine;

 public enum EnemyState
 {
     Wander,
     Follow,
     Die
 };
 
 public class EnemyController : MonoBehaviour
 {
 
     GameObject player;
     public EnemyState currState = EnemyState.Wander;
     public float range;
     public float speed;
     private bool chooseDir = false;
     private bool dead = false;
     private Vector3 randomDir;
 
     // Start is called before the first frame update
     void Start()
     {
         player = GameObject.FindGameObjectWithTag("Player");
     }
 
     // Update is called once per frame
     void Update()
     {
         switch (currState)
         {
             case (EnemyState.Wander):
                 Wander();
                 break;
             case (EnemyState.Follow):
                 Follow();
                 break;
             case (EnemyState.Die):
 
                 break;
         }
 
         if(IsPlayerInRange(range) && currState != EnemyState.Die)
         {
             currState = EnemyState.Follow;
         }
         else if(!IsPlayerInRange(range) && currState != EnemyState.Die)
         {
             currState = EnemyState.Wander;
         }
     }
 
     private bool IsPlayerInRange(float range)
     {
         return Vector3.Distance(transform.position, player.transform.position) <= range;
     }
 
     private IEnumerator ChooseDirection()
     {
         chooseDir = true;
         yield return new WaitForSeconds(Random.Range(2f, 8f));
         randomDir = new Vector3(0, 0, Random.Range(0, 360));
         Quaternion nextRotation = Quaternion.Euler(randomDir);
         transform.rotation = Quaternion.Lerp(transform.rotation, nextRotation, Random.Range(0.5f, 2.5f));
         chooseDir = false;
     }
 
     void Wander()
     {
         if (!chooseDir)
         {
             StartCoroutine(ChooseDirection());
         }
 
         transform.position += -transform.right * speed * Time.deltaTime;
         if (IsPlayerInRange(range))
         {
             currState = EnemyState.Follow;
         }
     }
 
     void Follow()
     {
         transform.position = Vector2.MoveTowards(transform.position, player.transform.position, speed * Time.deltaTime);
     }
 
     public void Death()
     {
         Destroy(gameObject);
     }
 }