# Error Adding MariaDb RDS

**URL:** <https://forums.percona.com/t/error-adding-mariadb-rds/7177>\
**Category:** PMM 1.x\
**Created:** [August 29, 2019, 10:46am UTC](https://forums.percona.com/t/error-adding-mariadb-rds/7177 "2019-08-29T10:46:14Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![dalicea](https://avatars.discourse-cdn.com/v4/letter/d/2bfe46/32.png) [@dalicea](https://forums.percona.com/u/dalicea)\
**Post date:** [August 29, 2019, 10:46am UTC](https://forums.percona.com/t/error-adding-mariadb-rds/7177/1 "2019-08-29T10:46:14Z")

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I am attempting to connect a MariaDB RDS (v10.2.15) to PMM and I get an error that reads "dial tcp :3306: i/o timeout. I have a second RDS MariaDB instance (v10.2.21) that I can connect to without an issue. Any ideas what is happening here?