Dec 23 18:31:40 rig zecminer64[2097]: ZEC: Share accepted (2 ms)!
Dec 23 18:31:41 rig zecminer64[2097]: server: bind failed with error: 98, next attempt in 10sec...
Dec 23 18:31:51 rig zecminer64[2097]: server: bind failed with error: 98, next attempt in 10sec...

On linux. Any idea what is 98 error?