SG300-28 : %SNMP-W-SNMPAUTHFAIL - Error Log

[maxmakung]

I want to add this device into program and Cisco SG300-28 Show error log below.

Log Index	Log Time	Severity	Description

2147482732	2014-Mar-31 13:54:34	Warning	%SNMP-W-SNMPAUTHFAIL: Access attempted by unauthorized NMS
2147482733	2014-Mar-31 13:31:27	Warning	%SNMP-W-SNMPAUTHFAIL: Access attempted by unauthorized NMS
2147482734	2014-Mar-31 13:20:36	Warning	%SNMP-W-SNMPAUTHFAIL: Access attempted by unauthorized NMS
2147482735	2014-Mar-31 13:05:31	Warning	%SNMP-W-SNMPAUTHFAIL: Access attempted by unauthorized NMS
2147482736	2014-Mar-31 12:54:41	Warning	%SNMP-W-SNMPAUTHFAIL: Access attempted by unauthorized NMS
2147482737	2014-Mar-31 12:31:27	Warning	%SNMP-W-SNMPAUTHFAIL: Access attempted by unauthorized NMS
2147482738	2014-Mar-31 12:17:05	Warning	%SNMP-W-SNMPAUTHFAIL: Access attempted by unauthorized NMS

What I did

- Enabled SSH and SNMPv1 and SNMPv3 (Spicework show it's connected but can't get switch information)

- Disabled Firewall in Windows7

Firmware:
SW version    1.3.7.18 ( date  12-Jan-2014 time  18:02:59 )
Boot version    1.3.5.06 ( date  21-Jul-2013 time  15:12:10 )
HW version    V01

What did I do wrong with SNMP setting?

Please kindly advice. Thank you very much.

[Tom Watts]

Hi, I believe this is related to the SNMP community, if you have it correctly configured, you may want to delete your SNMP setting then readd them.