Unable to join any Planning Poker game - SSL Error
If you're unable to join any Planning Poker game or create a new one but can still access the Planning Poker app itself, the issue might be due to your DNS cache.
On this page:
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Identifying the issue
Check the Network Activity in Developer Tools:
Open the Developer Tools in your browser and go to the Network tab.
Look for the request to
https://j-poker-production.lizardbrain.rocks/.Verify if the request reaches the app and receives a proper response. If not, you might see no Status Code or content in the Response tab.
Example Images:
Images showing successful network requests
Images showing network request issues
Check Console Logs for Errors:
Look in the Console tab of Developer Tools for the error:
ERR_SSL_PROTOCOL_ERROR.
Resolving the issue
If you encounter the symptoms above, or anything similar, it is likely due to a DNS cache problem. Follow these steps to resolve it:
Step 1: Flush DNS Cache
For Windows:
Press
Win + Rto open the Run window.Type
cmdand press Enter.In the Command Prompt, enter:
ipconfig /flushdns.You should see a confirmation message such as “Successfully flushed the DNS Resolver Cache.”
For macOS:
Open Terminal (Launchpad > Terminal).
Type:
sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder.Enter your password if prompted, and the cache will be cleared.
Step 2: Clear SSL State
For Windows:
Open Control Panel and go to Network and Internet.
Select Internet Options.
Navigate to the Content tab and click Clear SSL State.
You should see a confirmation message indicating that the SSL cache was cleared.
For macOS:
Open the Applications folder and go to Utilities.
Open Keychain Access and select System.
Locate the SSL certificate associated with the problematic site (e.g., your Jira instance address).
Select and delete the certificate (your system may ask for your username and password for confirmation).
Once these steps are complete, you should be able to use Planning Poker without any issues.