Upstream DB connection failure from Vercel (Starter plan)
Prisma PostgresHi, 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.
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 integrationRedeployed 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.
