Started Unicast Maintenance Ranging - No Response received - T3 time-out

Started receiving this error again.  Was receiving this error last year around this time.  It took 3 different tech visitis, new line installation from the house to the road, and cherry picker/supervisor equipment to resolve a node issue.  Not sure why it is now happening again almost a year later exactly.  Happens during the middle of the day randomly.  Some days no issues, other days have several periodic drops.