NEIL Harris said he is unhappy with the protection his players get from attacking set-pieces after the 1-1 draw against Hull on Saturday.
The Lions had at least two penalty claims when Jake Cooper and Matt Smith appeared to be fouled in the box after set-play deliveries.
Jed Wallace gave Millwall the lead with a 10th-minute penalty after Smith did get a spot-kick when he went down under Jordy De Wijs's challenge.
Hull equalised when Kamil Grosicki's free-kick from the left wing deceived Bart Bialkowski and landed in the far top corner.
Millwall were beaten just once in six games in August and have two weeks to prepare for their trip to Blackburn after the international break.
Tigers boss Grant McCann felt referee Oliver Langford was affected by the Den atmosphere, but Harris didn't agree.
Harris said: "I think Oliver Langford is an experienced ref. I thought [the goal] was a penalty. There was a lot of jostling, we could have had more protection on set-plays. He kept giving fouls against us for blocking the goalkeeper and things like that.
"I'm getting fed up of watching players try to deal with my players and our set-plays by cheating and fouling. We need more protection.
"I could probably go through eight or 10 instances in games where we get fouled and blocked off. All I want is consistency. If you're going to give fouls against my players for blocking an opponent, that's fine, but do it the other way as well.
"I'll say it again, we need more protection on our set-plays. We're good at them, we've got good players that can attack the ball.
"Players have to defend the ball, not defend men. At the moment we're not getting the rewards we deserve."
Millwall dominated the second half on Saturday, but failed to really test goalkeeper George Long.
Harris added: "I'm disappointed with the players in the sense that we got into some really good areas and dominated the second half territory-wise. We played on the front foot and were aggressive second half, got in some great areas, but just didn't deliver quality in the moments we needed it.
"Okay Jed's almost scored, Alex Pearce should have scored, Ryan Leonard should have scored, but the amount of times we got into good areas and turned down crossing opportunities or shooting opportunities was disappointing.
"Connor Mahoney had the best crossing stats in the division last year, that's why I signed him, but he didn't want to put the ball in the box.
"As you can imagine Matt Smith's a disappointed player with the service he got.
"I've got the frustration and the disappointment out of the way. Three games here at The Den and we've got seven points. We've got nine points from six games. We should have beaten Hull today and we should have beaten Boro last week.
"I can look at the disappointment of not having four points, but I can look at it and say it's a good start to the season for us."
Image: Millwall FC