This browser is no longer supported.
Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(294.40000000000003, 5%, 38%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ESS%3C/text%3E%3C/svg%3E)
we have SignalR and SignalR.Client libraries used in our project to establish the connection between the client and the server. The services are .NET applications and the client is a mobile application which is also a .NET application.
I am got the following exception when I checked the Splunk log of the mobile application. The exception is not consistent so it's difficult to understand the root cause of it.
The error indicates an SSL connection issue. Did you purchase an SSL certificate from a valid authority?
The certificate for the url is a valid one. Do you think something else could be an issue then?
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(121.6, 24%, 21%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ETW%3C/text%3E%3C/svg%3E)
Hi @Singh, Sheetal, since you mentioned that the exception is not consistent, I'm afraid there shall be something wrong within the code/certificate/network. I'm afraid we could try to narrow down the issue. For example, we might try with http connection if possible to see whether there's any issue inside the application itself. About the certificate, we'd better to use a SSL certificate from a valid authority and make sure the certificate is installed in the trusted root directory. Anyway, we need to narrow down the issue for further investigation.
@Tiny Wang-MSFT I tried checking the SSL certificate validity online(attached screenshot below),looks like it's valid. Please let me know what other information I can provide to narrow down the issue.
Hi @Singh, Sheetal, just like what I mentioned above, this issue might result from network/coding/certificate/server configuration/load balancor which covers several aspects so that I suggest you creating a support ticket( if you have the permission ), then Microsoft Support Engineers can help you. Here's the site https://support.microsoft.com/en-US. You can find the Support for business in the middle.
Also, if your application is hosted by Splunk cloud then you probably should contact the host for assistance.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(211.20000000000002, 61%, 30%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EBS%3C/text%3E%3C/svg%3E)
unlike windows, you can not override ssl certificate verification on a mobile o/s. the signing source must be installed as a trusted certificate on the mobile device.
Could you please guide me how can I do that?