# Developer Studio for ALEOS cannot connect to gateway "Algorithm negotiation fail"

**URL:** <https://forum.sierrawireless.com/t/developer-studio-for-aleos-cannot-connect-to-gateway-algorithm-negotiation-fail/26940>\
**Category:** Development tools\
**Created:** [May 4, 2022, 8:54am UTC](https://forum.sierrawireless.com/t/developer-studio-for-aleos-cannot-connect-to-gateway-algorithm-negotiation-fail/26940 "2022-05-04T08:54:23Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![AP11](https://avatars.discourse-cdn.com/v4/letter/a/6a8cbe/32.png) [@AP11](https://forum.sierrawireless.com/u/AP11)\
**Post date:** [May 4, 2022, 8:54am UTC](https://forum.sierrawireless.com/t/developer-studio-for-aleos-cannot-connect-to-gateway-algorithm-negotiation-fail/26940/1 "2022-05-04T08:54:24Z")

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I am unable to connect Developer Studio to the MP70 plugged in to my computer via USB.

In Remote System Explorer I right click on the defined connection for 192.168.13.31 and hit ‘connect’. I then get a dialogue box with the message ‘Failed to connect sshd on “192.168.13.31:22”’ . Clicking through to details tells me ‘Algorithm negotiation fail’.

I have the AAF user enabled and have made sure passwords match between the device and Developer Studio.

I have connected successfully in the past, but I have since updated the ALEOS version on the MP70. Either the current version of ALEOS is behaving differently or I have forgotten how to get the connection up and running. Any help or advice would be much appreciated.

The MP70 is running ALEOS Version 4.15.3  
Developer Studio is Version : 2.0.0.201310251637

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**Author:** ![jerdung](https://avatars.discourse-cdn.com/v4/letter/j/82dd89/32.png) [@jerdung](https://forum.sierrawireless.com/u/jerdung)\
**Post date:** [May 4, 2022, 9:44am UTC](https://forum.sierrawireless.com/t/developer-studio-for-aleos-cannot-connect-to-gateway-algorithm-negotiation-fail/26940/2 "2022-05-04T09:44:05Z")

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Hi AP11,

For USB, please try to connect with IP 192.168.14.31

Thanks,

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<div class="post-metadata">

**Author:** ![AP11](https://avatars.discourse-cdn.com/v4/letter/a/6a8cbe/32.png) [@AP11](https://forum.sierrawireless.com/u/AP11)\
**Post date:** [May 4, 2022, 9:50am UTC](https://forum.sierrawireless.com/t/developer-studio-for-aleos-cannot-connect-to-gateway-algorithm-negotiation-fail/26940/3 "2022-05-04T09:50:26Z")

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I tried both 192.168.14.31 and 192.168.13.31 using USB and ethernet and got the same error.

I have now rolled back to ALEOS 4.14 and the software connects properly.