Hardware upgrade to the US and Asia Servers

Maintenance has completed and all servers are up again.

Since last night I have one machine that is unable to connect, but several others that seem to be fine.  One of the working machines has the same software and config as the one that isn't working, but all were working yesterday.

This is what I get:

[2018-04-23 09:54:15] : Fast-connecting to xmr.poolmining.org:3032 pool ...

[2018-04-23 09:54:16] : Pool xmr.poolmining.org:3032 connected. Logging in...

[2018-04-23 09:54:17] : Difficulty changed. Now: 7500.

[2018-04-23 09:54:17] : Pool logged in.

[2018-04-23 09:54:22] : SOCKET ERROR - [xmr.poolmining.org:3032] RECEIVE error: socket closed

[2018-04-23 09:54:22] : All pools are dead. Idling...

[2018-04-23 09:54:52] : Fast-connecting to xmr.poolmining.org:3032 pool ...

[2018-04-23 09:54:54] : Pool xmr.poolmining.org:3032 connected. Logging in...

[2018-04-23 09:54:56] : Pool logged in.

[2018-04-23 09:54:58] : SOCKET ERROR - [xmr.poolmining.org:3032] RECEIVE error: socket closed

[2018-04-23 09:54:58] : All pools are dead. Idling...

[2018-04-23 09:55:28] : Fast-connecting to xmr.poolmining.org:3032 pool ...

[2018-04-23 09:55:28] : SOCKET ERROR - [xmr.poolmining.org:3032] CONNECT error: Connection refused

[2018-04-23 09:55:58] : Fast-connecting to xmr.poolmining.org:3032 pool ...

[2018-04-23 09:55:58] : Pool xmr.poolmining.org:3032 connected. Logging in...

[2018-04-23 09:55:58] : SOCKET ERROR - [xmr.poolmining.org:3032] Login error: No active block template

[2018-04-23 09:55:58] : SOCKET ERROR - [xmr.poolmining.org:3032] RECEIVE error: Bad file descriptor

Any ideas?  Could this be related to the upgrade?  Thanks!

getting same error on 2 of my miners

But I am still number 4 from the top on the top miners list so I guess I am still going strong!