| Event Id | 351 |
| Source | SNA Server |
| Description | Error trying to read from \\server\COMCFG\COM.CFG (rc=995) Windows NT Server return code 995 = ERROR_IO_INCOMPLETE. This may indicate a problem with the underlying network. The above error occurred at a site where the primary configuration server was located across an IP router from the SNA Server. The IP router was acting as a "black hole router," which was causing the network session to fail abnormally. |
| Event Information | According to Microsoft: Cause When the SnaBase service starts on SNA Server, it listens for "service table" broadcast announcements from other SnaBase services running on other computers running SNA Server in the SNA subdomain. This broadcast message indicates the SNA Server services running on the server, the servers role in the SNA domain, and other attributes. The SnaBase service (on backup and member configuration servers) keeps track of the "preferred" location for the SNA Server configuration file for the subdomain. When the SNA Server service starts, it reads its configuration entries from the configuration file located on the "preferred" server. If a broadcast is received from the primary configuration server, then the primary server is always the preferred server. However, if the SnaBase has not yet heard from the primary configuration server, a remote backup server is chosen as the preferred server, instead of the local backup configuration file. Resolution A backup configuration server now prioritizes the local Com.cfg file ahead of other backup configuration servers, if the primary configuration server announcement has not been received or if its SnaBase is not running. |
| Reference Links | Backup Config. Server May Not Always Read Local Config. File |
Catch threats immediately
We work side-by-side with you to rapidly detect cyberthreats
and thwart attacks before they cause damage.