# What is this type of error and how can i fix it

**URL:** <https://discourse.nodered.org/t/what-is-this-type-of-error-and-how-can-i-fix-it/79347>\
**Category:** General\
**Tags:** security\
**Created:** [22 June 2023 07:31 UTC](https://discourse.nodered.org/t/what-is-this-type-of-error-and-how-can-i-fix-it/79347 "2023-06-22T07:31:10Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Hamza7](https://avatars.discourse-cdn.com/v4/letter/h/c0e974/32.png) [@Hamza7](https://discourse.nodered.org/u/Hamza7)\
**Post date:** [22 June 2023 07:31 UTC](https://discourse.nodered.org/t/what-is-this-type-of-error-and-how-can-i-fix-it/79347/1 "2023-06-22T07:31:10Z")

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RequestError: write EPROTO 38410000:error:0A000152:SSL routines:final\_renegotiate:unsafe legacy renegotiation disabled:c:\ws\deps\openssl\openssl\ssl\statem\extensions.c:922:

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**Author:** ![knolleary](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/knolleary/32/3_2.png) [@knolleary](https://discourse.nodered.org/u/knolleary)\
**Post date:** [22 June 2023 07:57 UTC](https://discourse.nodered.org/t/what-is-this-type-of-error-and-how-can-i-fix-it/79347/2 "2023-06-22T07:57:55Z")

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Hi @Hamza7

you are not providing us with much information to go on.

All we can say is that _something_ using a TLS network connection has hit a fatal error in the low-level openssl code.

Do you have any more context you can share?

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**Author:** ![TotallyInformation](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/totallyinformation/32/31_2.png) [@TotallyInformation](https://discourse.nodered.org/u/TotallyInformation)\
**Post date:** [22 June 2023 16:45 UTC](https://discourse.nodered.org/t/what-is-this-type-of-error-and-how-can-i-fix-it/79347/3 "2023-06-22T16:45:28Z")

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For future reference, that error means that the server and the client cannot negotiate a secure connection because they don't have any overlapping allowed encryption standards.

This typically happens when either the client or the server haven't been updated in a long time and so only support outdated encryption standards that are no longer safe. It can, however, also happen if one end (typically the server) has an older configuration even if it has been updated.

The fix is to update the offending client or server to currently supported standards and ensure that the configuration is updated to also only allow safe standards.

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**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [6 July 2023 16:46 UTC](https://discourse.nodered.org/t/what-is-this-type-of-error-and-how-can-i-fix-it/79347/4 "2023-07-06T16:46:10Z")

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