I can't get this issue resolved and feel like I've been taking crazy pills. The problem is, despite whatever I try, that I cannot get my phones (Verizon iPhone 6, 6s, and 5c all running latest OSes) to send pictures through iMessage while I am on my home's WiFi. iMessage texts work perfectly find AND I can send iMessage pictures over cellular service. To further complicate matters, other family members on AT&T iPhones have come over and used iMessage on my wifi and had no issues. My iMessage will also work on other family member's WiFi. Here is my setup: Atlantic Broadband, Motorola Surfboard 6141, Apple Airport Extreme w/ Airport extender.And here is what I have tried to remedy the problem. - Called Apple and per their direction I turned off/on iMessage, Sign Out/In of iMessage, turned messages off/on, reset network settings. Nothing worked. They finally had me do a restore and that did not work. - I've tried a new router. Tp Link Archer C9. That did not work. I'm at a loss and can't make any sense of the problem. Has anyone ran into this issue or have a possible solution? Thanks for any help!