# Jobs stuck in queue. Scheduler connecting issues **URL:** \ **Category:** Users/Site Administrators\ **Created:** [May 17, 2024, 1:30pm UTC](https://community.openpbs.org/t/jobs-stuck-in-queue-scheduler-connecting-issues/3873 "2024-05-17T13:30:55Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![ryan](https://avatars.discourse-cdn.com/v4/letter/r/a8b319/32.png) [@ryan](https://community.openpbs.org/u/ryan)\ **Post date:** [May 17, 2024, 1:30pm UTC](https://community.openpbs.org/t/jobs-stuck-in-queue-scheduler-connecting-issues/3873/1 "2024-05-17T13:30:55Z")
Hello, I am getting the following message in the scheduler logs for a cluster running openpbs23 and warewulf3 cluster manager. pbs\_sched;Svr;pbs\_sched;Access from host not allowed, or unknown host (15008) in open\_server\_conns, Couldn’t register the scheduler default with connected server Jobs can be submitted but get stuck in the queue and never run. Due to the above issue I presume. Any suggestions on things to check? Firewall is already off, selinux disabled, ssh connectivity is working correctly. ---
**Author:** ![alexis.cousein](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.openpbs.org/alexis.cousein/32/265_2.png) [@alexis.cousein](https://community.openpbs.org/u/alexis.cousein)\ **Post date:** [May 18, 2024, 9:21pm UTC](https://community.openpbs.org/t/jobs-stuck-in-queue-scheduler-connecting-issues/3873/2 "2024-05-18T21:21:00Z")
The address the TCP packets from the scheduler seem to come from do not match the scheduler’s sched\_host attribute (cfr. qmgr -c “print sched @default” output.) The server logs will tell you where the server thinks the packets are coming from (I.e. what to set sched\_host to). One possible way to solve it if you can’t figure it out is to set sched\_host to localhost and to add PBS\_SERVER\_HOST\_NAME=localhost to the line on which you start pbs\_sched (that will make the scheduler contact 127.0.0.1, which will also make the source IP address for the packets match that address.