diff --git a/zone/mob_ai.cpp b/zone/mob_ai.cpp
index 91f2043123..da71debf3b 100644
--- a/zone/mob_ai.cpp
+++ b/zone/mob_ai.cpp
@@ -1074,10 +1074,12 @@ void Mob::AI_Process() {
 			bool is_moving = IsMoving() && !(IsRooted() || IsStunned() || IsMezzed());
 			auto t         = GetTarget();
 			if (is_moving && t) {
-				float self_z   = GetZ() - GetZOffset();
-				float target_z = t->GetPosition().z - t->GetZOffset();
-				if (DistanceNoZ(GetPosition(), t->GetPosition()) < 75 &&
-					std::abs(self_z - target_z) >= 25 && !CheckLosFN(t)) {
+				float self_z            = GetZ() - GetZOffset();
+				float target_z          = t->GetPosition().z - t->GetZOffset();
+				bool  can_path_to       = CastToNPC()->CanPathTo(t->GetX(), t->GetY(), t->GetZ());
+				bool  within_distance   = DistanceNoZ(GetPosition(), t->GetPosition()) < 75;
+				bool  within_z_distance = std::abs(self_z - target_z) >= 25;
+				if (within_distance && within_z_distance && !can_path_to) {
 					float new_z = FindDestGroundZ(t->GetPosition());
 					GMMove(t->GetPosition().x, t->GetPosition().y, new_z + GetZOffset(), t->GetPosition().w, false);
 					FaceTarget(t);
diff --git a/zone/npc.cpp b/zone/npc.cpp
index 34eee7aada..5563ffde71 100644
--- a/zone/npc.cpp
+++ b/zone/npc.cpp
@@ -3825,9 +3825,14 @@ void NPC::HandleRoambox()
 			auto requested_y = EQ::Clamp((GetY() + move_y), m_roambox.min_y, m_roambox.max_y);
 			auto requested_z = GetGroundZ(requested_x, requested_y);
 
+			if (std::abs(requested_z - GetZ()) > 100) {
+				LogNPCRoamBox("[{}] | Failed to find reasonable ground [{}]", GetCleanName(), i);
+				continue;
+			}
+
 			std::vector<float> heights = {0, 250, -250};
 			for (auto &h: heights) {
-				if (CheckLosFN(requested_x, requested_y, requested_z + h, GetSize())) {
+				if (CanPathTo(requested_x, requested_y, requested_z + h)) {
 					LogNPCRoamBox("[{}] Found line of sight to path attempt [{}] at height [{}]", GetCleanName(), i, h);
 					can_path = true;
 					break;
@@ -3942,3 +3947,24 @@ void NPC::SetTaunting(bool is_taunting) {
 		GetOwner()->CastToClient()->SetPetCommandState(PET_BUTTON_TAUNT, is_taunting);
 	}
 }
+
+bool NPC::CanPathTo(float x, float y, float z)
+{
+	PathfinderOptions opts;
+	opts.smooth_path = true;
+	opts.step_size   = RuleR(Pathing, NavmeshStepSize);
+	opts.offset      = GetZOffset();
+	opts.flags       = PathingNotDisabled ^ PathingZoneLine;
+
+	bool partial = false;
+	bool stuck   = false;
+	auto route   = zone->pathing->FindPath(
+		glm::vec3(GetX(), GetY(), GetZ()),
+		glm::vec3(x, y, z),
+		partial,
+		stuck,
+		opts
+	);
+
+	return !route.empty();
+}
diff --git a/zone/npc.h b/zone/npc.h
index 578f80649b..77025f168e 100644
--- a/zone/npc.h
+++ b/zone/npc.h
@@ -541,6 +541,8 @@ class NPC : public Mob
 
 	static LootDropEntries_Struct NewLootDropEntry();
 
+	bool CanPathTo(float x, float y, float z);
+
 protected:
 
 	void HandleRoambox();
diff --git a/zone/waypoints.cpp b/zone/waypoints.cpp
index 6eb96cbd20..bbb9ed0a3d 100644
--- a/zone/waypoints.cpp
+++ b/zone/waypoints.cpp
@@ -846,8 +846,15 @@ void Mob::FixZ(int32 z_find_offset /*= 5*/, bool fix_client_z /*= false*/) {
 	glm::vec3 current_loc(m_Position);
 	float new_z = GetFixedZ(current_loc, z_find_offset);
 
-	if (new_z == m_Position.z)
+	// reject z if it is too far from the current z
+	if (std::abs(new_z - m_Position.z) > 100) {
 		return;
+	}
+
+	// reject if it's the same as the current z
+	if (new_z == m_Position.z) {
+		return;
+	}
 
 	if ((new_z > -2000) && new_z != BEST_Z_INVALID) {
 		if (RuleB(Map, MobZVisualDebug)) {