Barnet striker Charlie Taylor faces a three-match ban after admitting an FA charge of spitting at an opponent on Saturday.
The incident is alleged to have occurred towards the end of last weekend's 2-1 win over Aldershot. It was missed by referee Robert Lewis but was caught on video.
Both clubs were also charged with charges of failing to ensure their players conducted themselves in an orderly fashion, which Barnet are still considering whether to appeal.
Meanwhile, QPR full-back Gary Borrowdale has extended his loan spell at Underhill until the end of the year.
The 26-year-old has made four appearances since his initial one-month switch and will now stay with the Bees until December 31.