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Sophos XG 135 - Radius server - Test connection failed due to incorrect credential

Jaroslav Horník

Hi, 

in our small company we are using Sophos XG 135. I'd like to use RADIUS server for my VPN connections to verify user as AD integration only allows PAP and Radius allows MSCHAP v2. However, for the love of God, I haven't been able to make it work. I have followed up this tutorial https://support.sophos.com/support/s/article/KB-000038174?language=en_US#RADIUS-server-configuration. My DC (where the NPS is installed) is 2019, and this OS is slightly different from 2012R2. 

I tried various combinations of conditions etc, but so far no luck.

Every time i hit Test Connection, the error message Test connection failed due to incorrect credential appears.

Would someone help me to make it work? I have been searching this forum, and there are a lot of threads with this same problem, however, no clear solutions. 

I would really appreciate any help.



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    Hi  To solve it first need to confirm what is the cause for the error and to get more info on the cause you may capture PCAP on XG for the Radius IP and may perform the test 3-4 times and based on the response/Error in PCAP you may check the reason. Based on that reason you may do the tweaking on the required side (Either on XG or on RADIUS sever).

    Regards,

    Vishal Ranpariya
    Technical Account Manager | Sophos Technical Support
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