# Unable to SSH to ePMP from MikroTik Terminal with old algorithms disabled

**URL:** <https://community.cambiumnetworks.com/t/unable-to-ssh-to-epmp-from-mikrotik-terminal-with-old-algorithms-disabled/93488>\
**Category:** ePMP\
**Created:** [June 12, 2023, 4:23pm UTC](https://community.cambiumnetworks.com/t/unable-to-ssh-to-epmp-from-mikrotik-terminal-with-old-algorithms-disabled/93488 "2023-06-12T16:23:52Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![Alessio\_Garavano](https://d10gw3vjmzyp8.cloudfront.net/user_avatar/community.cambiumnetworks.com/alessio_garavano/32/26581_2.png) [@Alessio\_Garavano](https://community.cambiumnetworks.com/u/Alessio_Garavano)\
**Post date:** [June 12, 2023, 4:23pm UTC](https://community.cambiumnetworks.com/t/unable-to-ssh-to-epmp-from-mikrotik-terminal-with-old-algorithms-disabled/93488/1 "2023-06-12T16:23:52Z")

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> [@Deprecated SSH algorithms in ePMP series and PTP550 stations](https://community.cambiumnetworks.com/t/deprecated-ssh-algorithms-in-epmp-series-and-ptp550-stations/82565/1):
>
> **The list of algorithms in 4.7.0 with old algorithms support disabled** :

Hi guys! how i can access by SSH from a Mikrotik Terminal to a ePMP in v4.7.x with old algorithms support disabled?  
All settings i try say: “can’t agree on KEX algorithms”  
I try enabling and disabling ‘/ip ssh strong-crypto’, test with 1024, 2048, etc etc… nothing work!

Thanks and regards!

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**Author:** ![PFR](https://d10gw3vjmzyp8.cloudfront.net/user_avatar/community.cambiumnetworks.com/pfr/32/19897_2.png) [@PFR](https://community.cambiumnetworks.com/u/PFR)\
**Post date:** [June 13, 2023, 11:50am UTC](https://community.cambiumnetworks.com/t/unable-to-ssh-to-epmp-from-mikrotik-terminal-with-old-algorithms-disabled/93488/2 "2023-06-13T11:50:28Z")

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Which software do u have on your mikrotik ?  
There is ssh v1 on the old mikrotik firmware, which should not be used for security reasons.  
Try updating to version 7.x.x on mikrotik

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**Author:** ![Daniel\_Millar](https://d10gw3vjmzyp8.cloudfront.net/user_avatar/community.cambiumnetworks.com/daniel_millar/32/12214_2.png) [@Daniel\_Millar](https://community.cambiumnetworks.com/u/Daniel_Millar)\
**Post date:** [June 19, 2023, 9:12pm UTC](https://community.cambiumnetworks.com/t/unable-to-ssh-to-epmp-from-mikrotik-terminal-with-old-algorithms-disabled/93488/3 "2023-06-19T21:12:10Z")

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Where is the ePMP device? Are you able to try with it being directly connected to the MikroTik to rule out any network issues? Also what RouterOS Version?

I have no issues from RouterOS 7.10 to ePMP 4.7.0.1

 ![Screenshot at Jun 20 09-11-17](https://d1okf4ta8xniw3.cloudfront.net/original/3X/6/c/6cd99ac63da70ebbc73b59efc63bbee9ff295741.png)

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**Author:** ![Alessio\_Garavano](https://d10gw3vjmzyp8.cloudfront.net/user_avatar/community.cambiumnetworks.com/alessio_garavano/32/26581_2.png) [@Alessio\_Garavano](https://community.cambiumnetworks.com/u/Alessio_Garavano)\
**Post date:** [June 22, 2023, 1:30am UTC](https://community.cambiumnetworks.com/t/unable-to-ssh-to-epmp-from-mikrotik-terminal-with-old-algorithms-disabled/93488/4 "2023-06-22T01:30:45Z")

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Hi, all my mikrotik network has last stable v7.x

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<div class="post-metadata">

**Author:** ![Alessio\_Garavano](https://d10gw3vjmzyp8.cloudfront.net/user_avatar/community.cambiumnetworks.com/alessio_garavano/32/26581_2.png) [@Alessio\_Garavano](https://community.cambiumnetworks.com/u/Alessio_Garavano)\
**Post date:** [June 22, 2023, 1:41am UTC](https://community.cambiumnetworks.com/t/unable-to-ssh-to-epmp-from-mikrotik-terminal-with-old-algorithms-disabled/93488/5 "2023-06-22T01:41:51Z")

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Hi Daniel, the ePMP is directly connected and powered by the Mikrotik PowerBox.  
I think i was clear in the post…  
When the ePMP has the option “Deprecated SSH Algorithms” is “Enabled” or allowed, i can connect by SSH correctly…  
The problem is when this option is not allowed “Disabled”

I like to add this security feature on my ePMP network, but i need to have SSH access from Mikrotik devices directly connected.  
All the towers of my network is powered by Mikrotik PowerBox.

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**Author:** ![MW\_WISP](https://d10gw3vjmzyp8.cloudfront.net/user_avatar/community.cambiumnetworks.com/mw_wisp/32/12227_2.png) [@MW\_WISP](https://community.cambiumnetworks.com/u/MW_WISP)\
**Post date:** [June 22, 2023, 10:13am UTC](https://community.cambiumnetworks.com/t/unable-to-ssh-to-epmp-from-mikrotik-terminal-with-old-algorithms-disabled/93488/6 "2023-06-22T10:13:58Z")

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Just tried: mikrotik 7.9.2 → ePMP 4.7.0.1 with “Deprecated SSH Algorithms” disabled and it works, successfully logged in.

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**Author:** ![system](https://d1okf4ta8xniw3.cloudfront.net/original/3X/c/d/cd4301339a1ee0b92b361a580797b682408b951e.png) [@system](https://community.cambiumnetworks.com/u/system)\
**Post date:** [June 21, 2024, 10:14am UTC](https://community.cambiumnetworks.com/t/unable-to-ssh-to-epmp-from-mikrotik-terminal-with-old-algorithms-disabled/93488/7 "2024-06-21T10:14:12Z")

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