Wis. Stat. § 809.83
The untimely service of a petition filed under s. 808.10 does not affect jurisdiction, but the opposing party may move to dismiss under sub. (2). State v. Rhone, 94 Wis. 2d 682, 288 N.W.2d 862 (1980). Summary reversal of a dismissal order as a sanction under sub. (2) entitled the plaintiffs to a trial without consideration of the issue that resulted in the dismissal. State ex rel. Blackdeer v. Town of Levis, 176 Wis. 2d 252, N.W.2d (Ct. App. 1993). To dismiss an appeal under sub. (2), there must be demonstrated egregious conduct or bad faith on the party's or attorney's part. In certain cases attorney bad faith may be imputed to the party, but the attorney conduct should involve the same litigation. It was improper to consider an attorney's repeated requests for time extensions in other cases in denying a motion and dismissing the appeal. State v. Smythe, 225 Wis. 2d 456, 592 N.W.2d 628 (1999), 97-3191. The court of appeals may not grant summary reversal of a circuit court order on appeal as a sanction without a finding of bad faith, egregious conduct, or a litigant's abandonment of the appeal. Raz v. Brown, 2003 WI 29, 260 Wis. 2d 614, 660 N.W.2d 647, 01-2436.