Spyder launches, hangs on forever and fails to start

Description of your problem

From the Anaconda command prompt I launch Spyder. Spyder launches, even loading and issuing a warning that my previous session crashed and that I should consider resetting (which I eventually did without result). The process carries on and then hangs on forever, failing to start (i.e. open the working windows with code, console, variables etc.)

PS: I have used with satisfaction Anaconda and Spyder for months now without any issue, cannot understand what’s wrong.

What steps will reproduce the problem?

1. Open Anaconda command prompt
2. Spyder

What is the expected output? What do you see instead?

Spyder should strart, instead Spyder launches, loads, then hangs on and fails to start, can see Python running in the background from the task manager. If I repeat the operation, more python.exe processes run in the background with 0% processors, memory and disk usage.

Please provide any additional information below

Tried to reset Spyder

Spyder --reset

Spyder resets properly but still fails to start

Versions and main components

• Spyder Version: 3.1.4
• Python Version: 2.7.13
• Anaconda Version: 4.3.21
• Qt Version: 5.6.2
• PyQt Version: 5.6.0
• Operating system: Windows 10,

Dependencies

Cannot access help to check dependencies, Spyder fails to start

[SaintNazaire]

I’m afraid I elected to uninstall & reinstall Anaconda 2-4.4.0 which eliminated the problem and prevents me to replicate the issue.

[Dabar999]

Hello! Spyder was running properly on my PC with Windows 10 until last Windows update two days ago. When i try to run Spyder from Anaconda i got error message: [15248:13072:1123/124942.758:ERROR:network_change_notifier_win.cc(156)] WSALookupServiceBegin failed with: 8 Assertion failed: Connection reset by peer [10054] (C:\Users\nwani\Downloads\mc3\conda-bld\zeromq_1531316860385\work\src\ip.cpp:485) [3972:15528:1123/125005.511:ERROR:broker_win.cc(59)] Error reading broker pipe: The pipe has been ended. (0x6D) Does anybody knows how to fix this problem. THX!