fix(el): Always use delayed socket shutdown; better error checking
fix(el): Always use delayed socket shutdown; better error checking

open62541/open62541,jpfr/open62541,jpfr/open62541,open62541/open62541,JGrothoff/open62541,jpfr/open62541,JGrothoff/open62541,open62541/open62541,open62541/open62541,jpfr/open62541,JGrothoff/open62541,JGrothoff/open62541