The Gemmorah (Megilla 17a) mentions that Yaakov was punished for not honoring his parents for 22 years in Haran (but not for the 14 years at Ever's Yeshivah). His punishment was that his son Yossef was also "cut off" from him for 22 years:
"ומנלן דלא מיענש דתניא נמצא יוסף שפירש מאביו עשרים ושתים שנה כשם שפירש יעקב אבינו מאביו דיעקב תלתין ושיתא הויין אלא ארביסר דהוה בבית עבר לא חשיב להו"
Yaakov could send messengers to his parents pretty freely.
Yaakov was acquired with angels (that he sent to Esau), he could send angels.
His father was a millionaire and could afford a better communication with his (only) heir.
Yaakov didn't acknowledge his parents of the birth of their grandkids, fulfilling G-d's (and Yitzhok's) plans he was sent to Haran in the first place.
What might be the reasons for Yaakov's lack of honoring for his parents Itzhak and Rivkah?