Can not communicate with task server, check your settings

[Stives]

Hello, my DB connect displaying this error when I´m trying to access:
Can not communicate with task server, check your settings

I´ve configured app before and all was working but then I start to receive this error in web app. DB connect app not showing any configured DBs just errors.
Can you suggest ?
BR

[Rdm]

I faced this issue, found that server.pem under /etc/auth had expired. 
1) renamed server.pem
2) ran splunk restart
3) new cert got generated with 3 year extension on expiry date.

Do not change any java settings if it was working before and suddenly stopped working,  check cert expiry first.

[scelikok]

Hi @Stives,

This happens when Java is not installed or the Java path is not correctly configured.  

Did you try restarting Splunk's service? Sometimes it helps.

Or maybe there is a change on your Java installation because of an OS update, etc.

[Stives]

Hi @scelikok  thanks for reply, my feedback below:

/ I tried to restart services no change.

/ if I run Upgrade readiness scan for jQuery scan its ok..but for Python scan 2 public apps failing one of them DB connect app.

Thanks in advance.

[PickleRick]

OK. How old is your DBConnect app version (what version is it)?

[Stives]

Version 3.15.0

[PickleRick]

And haven't you lately upgraded the app from an old version? If so, did you read https://docs.splunk.com/Documentation/DBX/3.15.0/DeployDBX/MigratefromDBConnectv1 

[Stives]

Hello I´ve upgraded DB connect app. from version 3.** to 3.15 not long time ago but I could configure it without any issues. I´ve start to receive this error only recently.

I´m also attaching port related message.

I was also trying to downgrade DB connect app. according the instructions but when I change from DONE to PENDING I see no difference it´s still 3.15.0.