Upstream DB connection failure from Vercel (Starter plan)
Prisma Postgres
Hi, I'm on the Starter plan and experiencing a persistent production error connecting from Vercel to Prisma Postgres. Error: [DB:insertPostIfNotExists] Failed to connect to upstream database. Please contact Prisma support if the problem persists. → HTTP 500, reproducible consistently. Already tried: Rotated DB secrets Restarted database Reconnected Vercel Prisma integration Redeployed production Verified DATABASE_URL matches Prisma Console exactly Tested both direct and pooled TCP (pool=true) Failing request IDs (from Vercel): hnd1::iad1::56b8p-1772163462061-604d2c29d32d hnd1::iad1::nl6pq-1772163658760-846fef95b5b7 hnd1::iad1::fdj8t-1772163741803-cbe6910c0528 Details: Vercel project: trump-auto-transfer, Production, Serverless, region hnd1::iad1 Started: 2026-02-26 JST Vercel Support confirmed the error originates from Prisma's connection pooler side Could someone help investigate upstream connectivity or instance-level restrictions for this database? Thank you.