Jumps never reset

Hey this is my first time posting here so I hope everything is in order, anyway, I have a problem with a couple scripts that deal with controlling the character and I can't spot the problem involving my player character never being able to jump again after double jumping the first time, at first I thought it may have been a layering problem but I've double checked the layering on my sprites and I'm certain it's all fine; now I'm wondering if it's a ray-cast/groundcheck problem but I can't tell. (ray-casts are at line 34, line 90).

using UnityEngine; using System.Collections;

 public class Character : MonoBehaviour 
 {
 
     public enum inputState 
     { 
         None, 
         WalkLeft, 
         WalkRight, 
         Jump, 
     }
     [HideInInspector] public inputState currentInputState;
     
     [HideInInspector] public enum facing { Right, Left }
     [HideInInspector] public facing facingDir;
 
     [HideInInspector] public bool alive = true;
     
     protected Transform _transform;
     protected Rigidbody2D _rigidbody;
 
     // edit these to tune character movement    
     private float runVel = 8f;     // run speed
     private float walkVel = 6f;     // walk speed 
     private float jumpVel = 8f;     // jump velocity
     private float jump2Vel = 6f;     // double jump velocity
     private float fallVel = 2f;        // fall velocity, gravity
 
     private float moveVel;
     private float pVel = 0f;
     
     private int jumps = 0;
     private int maxJumps = 2;         // set to 2 for double jump
         
     protected string team = "";
 
     // raycast stuff
     private RaycastHit2D hit;
     private Vector2 physVel = new Vector2();
     [HideInInspector] public bool grounded = false;
     private int groundMask = 1 << 8; // Ground layer mask
 
     public virtual void Awake()
     {
         _transform = transform;
         _rigidbody = rigidbody2D;
     }
     
     // Use this for initialization
     public virtual void Start () 
     {
         moveVel = walkVel;
     }
     
     
     // ============================== FIXEDUPDATE ============================== 
 
     public virtual void UpdatePhysics()
     {
 
         physVel = Vector2.zero;
 
         // move left
         if(currentInputState == inputState.WalkLeft)
         {
             physVel.x = -moveVel;
         }
 
         // move right
         if(currentInputState == inputState.WalkRight)
         {
             physVel.x = moveVel;
         }
 
         // jump
         if(currentInputState == inputState.Jump)
         {
             if(jumps < maxJumps)
             {
                 jumps += 1;
                 if(jumps == 1)
                 {
                     _rigidbody.velocity = new Vector2(physVel.x, jumpVel);
                 }
                 else if(jumps == 2)
                 {
                     _rigidbody.velocity = new Vector2(physVel.x, jump2Vel);
                 }
             }
         }
 
 
         // use raycasts to determine if the player is standing on the ground or not
         if (Physics2D.Raycast(new Vector2(_transform.position.x-0.1f,_transform.position.y), -Vector2.up, .26f, groundMask) 
             || Physics2D.Raycast(new Vector2(_transform.position.x+0.1f,_transform.position.y), -Vector2.up, .26f, groundMask))
         {
             grounded = true;
             jumps = 0;
         }
         else
         {
             grounded = false;
             _rigidbody.AddForce(-Vector2.up * fallVel);
         }
 
         // actually move the player
         _rigidbody.velocity = new Vector2(physVel.x, _rigidbody.velocity.y);
     }
 
 
 public enum MyTeam 
 {
     Team1,
     Team2,
     None
 }

}

 using UnityEngine;
 using System.Collections;
 
 public class Player1 : Character 
 {    
     // Use this for initialization
     public override void Start () 
     {
         base.Start();
 
         // grab the players position at startup and use it for the spawn position when starting new rounds
         spawnPos = _transform.position;
     }
 
     public void FixedUpdate()
     {
         // inputstate is none unless one of the movement keys are pressed
         currentInputState = inputState.None;
         
         // move left
         if(Input.GetKey(KeyCode.A)) 
         { 
             currentInputState = inputState.WalkLeft;
             facingDir = facing.Left;
         }
 
         // move right
         if (Input.GetKey(KeyCode.D) && currentInputState != inputState.WalkLeft) 
         { 
             currentInputState = inputState.WalkRight;
             facingDir = facing.Right;
         }
 
         // jump
         if (Input.GetKeyDown(KeyCode.W)) 
         { 
             currentInputState = inputState.Jump;
         }
 
         UpdatePhysics();
     }
 
         }}