Can't mine bitcoin on any pool, can mine other SHA coins fine

[unbwogable]

I get numerous errors in stratum proxy when I try to mine bitcoin on ANY pool (Multipool, Slush, others), I get nothing but errors when I try, however if I switch to any other coin, it works fine. The copy/paste below is an OCR'd version of the window:

This happens across three machines running stratum

-- <exception caught here> ---
File "twisted\internet\defer.pyo", line 134, in maybeDeferred
File "mining_libs\worker_registry.pyo", line 37, in authorize
File "stratum\socket_transport_pyo", line 93, in rpc

stratum.custom_exceptions.TransportException: Not connected
unhandled error in Deferred:
unhandled Error
traceback (most recent call last):

File "twisted\web\server.pyo", line 156, in process
File "twisted\web\seryer.pyo", line 191, in render
File "twisted\web\resource.pyo", line 216, in render
File "mining_libs\getwork_listener.pyo", line 163, in render_POST

-- <exception caught here> ---
File "twisted\internet\defer.pyo", line 134, in maybetleferred
File "mining_libs\worker_registry_pyo", line 37, in authorize
File "stratum\socket_transport.pyo", line 93, in rpc .

stratum.custom_exceptions.TransportException: Not connected

unhandled error in Deferred:
unhandled Error
traceback (most recent call last>:
File "twisted\web\seryer.pyo", line 156, in process
File "twisted\web\seryer.pyo", line 191, in render
File "twisted\web\resource.pyo", line 216, in render
File "mining_libs\getwork_listener.pyo", line 163, in render_POST

-- <exception caught here> ---
File "twisted\internet\defer.pyo", line 134, in maybeDeferred
File "mining_libs\worker_registry_pyo", line 37, in authorize
File "stratum\socket_transport.pyo", line 93, in rpc .
stratum.custom_exceptions.TransportException: Not connected
unhandled error in Deferred:
unhandled Error raceback (most recent call last>:
File "twisted\web\server.pyo", line 156, in process
File "twisted\web\seryer_pyo", line 191, in render
File "twisted\web\resource_pyo", line 216, in render
File "mining_libs\getwork_listener.pyo", line 163, in render_POST

-- <exception caught here> ---
File "twisted\internet\defer.pyo", line 134, in maybeDeferred
File "mining_libs\worker_registry_pyo", line 37, in authorize
File "stratum\socket_transport.pyo", line 93, in rpc .
stratum_custom_exceptions.TransportException: Not connected