# Sapphire DEVNET: \`/rss/\*\` returns 503 on all nodes since 2026-10-22 **URL:** \ **Category:** Embedded Wallets (Web3Auth)\ **Created:** [October 25, 2026, 2:25pm UTC](https://builder.metamask.io/t/sapphire-devnet-rss-returns-503-on-all-nodes-since-2026-10-22/3630 "2026-10-25T14:25:26Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![YankeyDev](https://yyz1.discourse-cdn.com/flex011/user_avatar/builder.metamask.io/yankeydev/32/4241_2.png) [@YankeyDev](https://builder.metamask.io/u/YankeyDev)\ **Post date:** [October 25, 2026, 2:25pm UTC](https://builder.metamask.io/t/sapphire-devnet-rss-returns-503-on-all-nodes-since-2026-10-22/3630/1 "2026-10-25T14:25:26Z")
Since about 2026-10-22 23:00 UTC, every web sign-in on our staging app fails (verifier `cipherbox-identity`, `@web3auth/mpc-core-kit` 3.5.0, `@tkey/tss` 15.1.0). - `https://node-{1..5}.dev-node.web3auth.io/rss/rss_round_1` returns `503 No server is available to handle this request` for both OPTIONS and POST, from any origin. The 503 has no CORS headers, so browsers report a CORS error and the SDK throws `Failed to fetch`. `_UNSAFE_exportTssKey` fails because it calls `addFactorPub` and `deleteFactorPub`, and both use RSS. - `/sss/jrpc`, `/tss/health` and `/metadata/health` on the same nodes return 200. - Since 2026-10-24, some sign-ins fail before RSS with `Error occurred while getting current epoch`. - Still the same at 2026-10-25 12:09 UTC. Is the RSS service on Sapphire DEVNET down, and is there an ETA? ---
**Author:** ![shana](https://avatars.discourse-cdn.com/v4/letter/s/3bc359/32.png) [@shana](https://builder.metamask.io/u/shana)\ **Post date:** [October 26, 2026, 11:15am UTC](https://builder.metamask.io/t/sapphire-devnet-rss-returns-503-on-all-nodes-since-2026-10-22/3630/2 "2026-10-26T11:15:14Z")
Hi do you still have an issue with the devnet, did anything change? ---
**Author:** ![YankeyDev](https://yyz1.discourse-cdn.com/flex011/user_avatar/builder.metamask.io/yankeydev/32/4241_2.png) [@YankeyDev](https://builder.metamask.io/u/YankeyDev)\ **Post date:** [October 26, 2026, 11:48am UTC](https://builder.metamask.io/t/sapphire-devnet-rss-returns-503-on-all-nodes-since-2026-10-22/3630/3 "2026-10-26T11:48:01Z")
Hi Shana, yes I am still getting the `503` response from the devnet RSS endpoints. The app is accessible on [https://app-staging.cipherbox.cc](https://app-staging.cipherbox.cc) ---
**Author:** ![yashovardhan](https://yyz1.discourse-cdn.com/flex011/user_avatar/builder.metamask.io/yashovardhan/32/1526_2.png) [@yashovardhan](https://builder.metamask.io/u/yashovardhan)\ **Post date:** [October 26, 2026, 2:22pm UTC](https://builder.metamask.io/t/sapphire-devnet-rss-returns-503-on-all-nodes-since-2026-10-22/3630/4 "2026-10-26T14:22:54Z")
Hey @YankeyDev I tested locally, Sapphire Devnet is working correctly. Just note that Devnet is only meant for local testing and you need to be on mainnet to do testing on any hosted domain. Can you check if you are facing the same issue in localhost as well? ---
**Author:** ![yashovardhan](https://yyz1.discourse-cdn.com/flex011/user_avatar/builder.metamask.io/yashovardhan/32/1526_2.png) [@yashovardhan](https://builder.metamask.io/u/yashovardhan)\ **Post date:** [October 26, 2026, 4:14pm UTC](https://builder.metamask.io/t/sapphire-devnet-rss-returns-503-on-all-nodes-since-2026-10-22/3630/5 "2026-10-26T16:14:12Z")
Hey @YankeyDev Our team has identified the issue particularly in US/EU regions. We will update once it gets resolved. ---
**Author:** ![YankeyDev](https://yyz1.discourse-cdn.com/flex011/user_avatar/builder.metamask.io/yankeydev/32/4241_2.png) [@YankeyDev](https://builder.metamask.io/u/YankeyDev)\ **Post date:** [October 26, 2026, 9:10pm UTC](https://builder.metamask.io/t/sapphire-devnet-rss-returns-503-on-all-nodes-since-2026-10-22/3630/6 "2026-10-26T21:10:32Z")
Thanks, I just checked and seems like the calls are working again. ---
**Author:** ![yashovardhan](https://yyz1.discourse-cdn.com/flex011/user_avatar/builder.metamask.io/yashovardhan/32/1526_2.png) [@yashovardhan](https://builder.metamask.io/u/yashovardhan)\ **Post date:** [October 27, 2026, 5:45am UTC](https://builder.metamask.io/t/sapphire-devnet-rss-returns-503-on-all-nodes-since-2026-10-22/3630/7 "2026-10-27T05:45:42Z")
This issue has been fixed, thanks a lot for reporting and getting it under our radar! ---
**Author:** ![yashovardhan](https://yyz1.discourse-cdn.com/flex011/user_avatar/builder.metamask.io/yashovardhan/32/1526_2.png) [@yashovardhan](https://builder.metamask.io/u/yashovardhan)\ **Post date:** [October 27, 2026, 5:46am UTC](https://builder.metamask.io/t/sapphire-devnet-rss-returns-503-on-all-nodes-since-2026-10-22/3630/8 "2026-10-27T05:46:01Z")
Closed on October 27, 2026, 5:46am UTC