I have this issue when i start golem however prerequisites are ok :
port forwarding enable all ports TCP UDP mentioned in the documentation.
*Firewall passthrough ok
It seems connected cause node showed in bottom.
log issues :
`2017-09-26 20:05:40 ERROR golem b"Unhandled error in Deferred:\n[Failure instance: Traceback: <class 'TypeError'>: Value must be an instance of str or bytes\nC:\\Users\\badb\\AppData\\Local\\Programs\\Python\\Python36\\lib\\site-packages\\autobahn\\wamp\\protocol.py:780:onMessage\nC:\\Users\\badb\\AppData\\Local\\Programs\\Python\\Python36\\lib\\site-packages\\txaio\\tx.py:452:resolve\nC:\\Users\\badb\\AppData\\Local\\Programs\\Python\\Python36\\lib\\site-packages\\twisted\\internet\\defer.py:459:callback\nC:\\Users\\badb\\AppData\\Local\\Programs\\Python\\Python36\\lib\\site-packages\\twisted\\internet\\defer.py:567:_startRunCallbacks\n--- <exception caught here> ---\nC:\\Users\\badb\\AppData\\Local\\Programs\\Python\\Python36\\lib\\site-packages\\twisted\\internet\\defer.py:653:_runCallbacks\nC:\\Sources\\golem\\gui\\applicationlogic.py:164:_update_peers_view\nC:\\Users\\badb\\AppData\\Local\\Programs\\Python\\Python36\\lib\\site-packages\\ethereum\\utils.py:75:encode_hex\nC:\\Users\\badb\\AppData\\Local\\Programs\\Python\\Python36\\lib\\site-packages\\rlp\\utils_py3.py:59:encode_hex\n]"
2017-09-26 20:05:43 ERROR golem b"Unhandled error in Deferred:\n[Failure instance: Traceback: <class 'TypeError'>: Value must be an instance of str or bytes\nC:\\Users\\badb\\AppData\\Local\\Programs\\Python\\Python36\\lib\\site-packages\\autobahn\\wamp\\protocol.py:780:onMessage\nC:\\Users\\badb\\AppData\\Local\\Programs\\Python\\Python36\\lib\\site-packages\\txaio\\tx.py:452:resolve\nC:\\Users\\badb\\AppData\\Local\\Programs\\Python\\Python36\\lib\\site-packages\\twisted\\internet\\defer.py:459:callback\nC:\\Users\\badb\\AppData\\Local\\Programs\\Python\\Python36\\lib\\site-packages\\twisted\\internet\\defer.py:567:_startRunCallbacks\n--- <exception caught here> ---\nC:\\Users\\badb\\AppData\\Local\\Programs\\Python\\Python36\\lib\\site-packages\\twisted\\internet\\defer.py:653:_runCallbacks\nC:\\Sources\\golem\\gui\\applicationlogic.py:164:_update_peers_view\nC:\\Users\\badb\\AppData\\Local\\Programs\\Python\\Python36\\lib\\site-packages\\ethereum\\utils.py:75:encode_hex\nC:\\Users\\badb\\AppData\\Local\\Programs\\Python\\Python36\\lib\\site-packages\\rlp\\utils_py3.py:59:encode_hex\n]"
2017-09-26 20:05:46 ERROR golem b"Unhandled error in Deferred:\n[Failure instance: Traceback: <class 'TypeError'>: Value must be an instance of str or bytes\nC:\\Users\\badb\\AppData\\Local\\Programs\\Python\\Python36\\lib\\site-packages\\autobahn\\wamp\\protocol.py:780:onMessage\nC:\\Users\\badb\\AppData\\Local\\Programs\\Python\\Python36\\lib\\site-packages\\txaio\\tx.py:452:resolve\nC:\\Users\\badb\\AppData\\Local\\Programs\\Python\\Python36\\lib\\site-packages\\twisted\\internet\\defer.py:459:callback\nC:\\Users\\badb\\AppData\\Local\\Programs\\Python\\Python36\\lib\\site-packages\\twisted\\internet\\defer.py:567:_startRunCallbacks\n--- <exception caught here> ---\nC:\\Users\\badb\\AppData\\Local\\Programs\\Python\\Python36\\lib\\site-packages\\twisted\\internet\\defer.py:653:_runCallbacks\nC:\\Sources\\golem\\gui\\applicationlogic.py:164:_update_peers_view\nC:\\Users\\badb\\AppData\\Local\\Programs\\Python\\Python36\\lib\\site-packages\\ethereum\\utils.py:75:encode_hex\nC:\\Users\\badb\\AppData\\Local\\Programs\\Python\\Python36\\lib\\site-packages\\rlp\\utils_py3.py:59:encode_hex\n]"
2017-09-26 20:06:18 WARNING twisted session closed with reason wamp.close.transport_lost [()]
2017-09-26 20:06:18 INFO twisted cleaning up outstanding CallRequest request 67, firing errback on user handler <Deferred at 0x18d5906cda0>
2017-09-26 20:06:18 INFO twisted Scheduling retry 1 to connect <twisted.internet.endpoints.TCP4ClientEndpoint object at 0x0000018D5398FF28> in 1.80745026429716 seconds.`
Hi @jochen1727
Please try to use the newest release of Golem and checking if this issue is valid. If you observe similar problems again, feel free to contact us or reopen the issue.
I have this issue when i start golem however prerequisites are ok :