lndy test issue

[FreddieAkeroyd]

occasionally lewis says

Request var-binds: 1.3.6.1.4.1.17420.1.2.9.1.13.0=<>, flags: EXACT, GET 
ERROR data error at C:\Instrument\Apps\EPICS\support\lndyisw\master\system_tests\tests\public.snmprec controller for 1.3.6.1.4.1.17420.1.2.9.1.13.0: broken record <b'2c302c302c302c30\r\n'>: not enough values to unpack (expected 3, got 1) 
Response var-binds: 1.3.6.1.4.1.17420.1.2.9.1.13.0=<No Such Instance currently exists at this OID> 

and ioc

*** devSnmp PDU-MIB::pdu01Threshold1.0 (GET) flagged bad, error = 2 ((noSuchName) There is no such variable name in this MIB.)

leading to test failure