Response group not routing calls to agents

we have a response group for our marin inbound number, the agents are in a queue that is a formal group. however when trying to sign into the group a few have the following error: "cannot retreive the signin state from the pool. try again later or contact your support team"

others are able to sign in but never receive any calls. when we changed the group to an informal group they still did not receive calls. the same occurred when setting as a attendant group.

our setup consists of 3 FE servers in a pool, one edge server, Always-ON SQL, and WSFC for the file share.

all the agents are inside the network, calls properly route to the hold music but not onwards.

we have tried failing over each server as well as doing a  Reset-CsPoolRegistrarState -QuorumLossRecovery
and -servicereset neither resolved the issue.

at this point i do not see any errors in the event logs on any of the 3 fe servers that would be causing this.
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masteritlionAuthor Commented:
this is most likely some issue with the database state. however i could not find any instructions on how to rectify this issue.
masteritlionAuthor Commented:
In the interest of completion and for my documentation of the solution that worked for me.
what we did was stop-cswindowsservice on all the FE servers and then we ran Install-CsDatabase -LocalDatabases -Clean
so that all the localdatabases would sync up with the central db.

then we restarted the servers and ran the start-cspool command and they all started successfully and response group's started routing correctly again.

a different issue led us to this solution from the following article:

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