XenServer 7 iSCSI SR Creation pool slaves unplugged

Everything is functional on the pool and I have been running it a couple of weeks now. I went to create a new iSCSI SR and attached to my strorage LUN and it completes and shows connected on the pool master server, but not on the pool slaves. They both show Unplugged. If I reboot the slaves then the status will come online as connected. A repair of the SR will not fix it, the error is "The storage repository is not available". In SMlog I see that as well. Has anyone else seen this when adding a SR to a running pool ?

Jun 20 11:12:57 pd-blade3 SM: [25314] File "/opt/xensource/sm/LVMoISCSISR", line 520, in attach
Jun 20 11:12:57 pd-blade3 SM: [25314] raise xs_errors.XenError("SRUnavailable", opterr=inst)
Jun 20 11:12:57 pd-blade3 SM: [25314] File "/opt/xensource/sm/xs_errors.py", line 52, in _init_
Jun 20 11:12:57 pd-blade3 SM: [25314] raise SR.SROSError(errorcode, errormessage)