# Random upload failures only on IPv6 connection **URL:** \ **Category:** RIPE Atlas\ **Created:** [12 May 2026 13:20 UTC](https://forum.ripe.net/t/random-upload-failures-only-on-ipv6-connection/1652 "2026-05-12T13:20:54Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![alishawinson](https://avatars.discourse-cdn.com/v4/letter/a/c57346/32.png) [@alishawinson](https://forum.ripe.net/u/alishawinson)\ **Post date:** [12 May 2026 13:20 UTC](https://forum.ripe.net/t/random-upload-failures-only-on-ipv6-connection/1652/1 "2026-05-12T13:20:54Z")
I’ve been noticing strange upload failures when syncing large video exports [download from here](https://cepcutapk.com/). The issue only seems to happen on IPv6-enabled networks — uploads either stall midway or fail without a proper error message. Switching to IPv4 temporarily fixes it, which makes me think this could be routing, MTU, or CDN-related rather than an application bug itself. Has anyone else seen unstable media uploads specifically over IPv6 recently? ---
**Author:** ![discourse\_ai\_spam](https://avatars.discourse-cdn.com/v4/letter/d/c68b51/32.png) [@discourse\_ai\_spam](https://forum.ripe.net/u/discourse_ai_spam)\ **Post date:** [12 May 2026 13:30 UTC](https://forum.ripe.net/t/random-upload-failures-only-on-ipv6-connection/1652/2 "2026-05-12T13:30:10Z")
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**Author:** ![system](https://europe1.discourse-cdn.com/flex013/uploads/ripe/original/1X/5565565f0f76b80d7c196258be3a9514ffa2ada7.png) [@system](https://forum.ripe.net/u/system)\ **Post date:** [17 May 2026 14:07 UTC](https://forum.ripe.net/t/random-upload-failures-only-on-ipv6-connection/1652/3 "2026-05-17T14:07:04Z")