Cant use cadence PCB's auto-router option

Which license level are you using?  Orcad or Orcad Professional?  What does it say with "file viewlog"?

I had same problem before, but I found the cause! when I removed all of Clines and Vias on the board, it works correctly. if there are the clines or vias that I created by hand on the board , it happened kind of that problem in my case. it has some bug I guess....  (I used professional license)

Last time I used the AutoRouter there was a check-box "Protect Routes/vias". When this is set, only unrouted nets will be handled by the autorouter. An advice is to route all critical nets first such as clock, power, create planes, etc and leave the uncritical nets to the autorouter. If you make a save of the half-way completed board, you can use a copy for experimenting, setting the layer route preferences, cleaning up via options, etc. It was some time since I used it (OrCAD Professional), but I think that constraints created in CM will be honored by the router.

Even if the routers are quite clever, I have always had to spend some time in a manual optimization of routes afterwards.

Hi,

1. I am using Orcad Professional

2. which viewlog file do you refer? i have like 5 .log files, some of them are like the following

for example in netlist.log  

{ Using PSTWRITER 17.2.0 d001Sep-03-2020 at 08:05:06 }

#1 WARNING(ORCAP-36006): Part Name "L_DISC_350X175_LS200X100_034_200UH" is renamed to "L_DISC_350X175_LS200X100_034_20".

#2 WARNING(ORCAP-36006): Part Name "2N7000KL_0_TRANSISTOR2N7000SMD_SOT23_3L_2N7000KL" is renamed to "2N7000KL_0_TRANSISTOR2N7000SMD_".

INFO(ORCAP-36080): Scanning netlist files ...

Loading... C:\USERS\PERSONAL\ONEDRIVE\PROYECTOS\pstchip.dat

Loading... C:\USERS\PERSONAL\ONEDRIVE\PROYECTOS\pstchip.dat

Loading... C:\USERS\PERSONAL\ONEDRIVE\PROYECTOS\pstxprt.dat

Loading... C:\USERS\PERSONAL\ONEDRIVE\PROYECTOS\pstxnet.dat

packaging the design view...  

In created symbols it says  

(---------------------------------------------------------------------)

(                                                                     )

(    CREATE SYMBOL                                                    )

(                                                                     )

(    Drawing          : resistencia1_16w.dra                          )

(    Software Version : 17.2P019                                      )

(    Date/Time        : Thu Aug 27 15:35:04 2020                      )

(                                                                     )

(---------------------------------------------------------------------)

Create Symbol of type: PACKAGE

   Directory = C:/Users/Personal/OneDrive/Proyectos/PCB v3 v1

   Name      = resistencia1_16w.psm

   User      = Personal

   Machine   = DESKTOP-T3EOOM5

Create symbol started.

Create symbol completed.

  In batch_drc.log it says    

(---------------------------------------------------------------------)

(                                                                     )

(    DRC Update                                                       )

(                                                                     )

(    Drawing          : sym_template.dra                              )

(    Software Version : 17.2P028                                      )

(    Date/Time        : Fri Aug 28 13:21:29 2020                      )

(                                                                     )

(---------------------------------------------------------------------)

========= check shapes                       0:00:00

========= check standalone pins              0:00:00

========= check symbols (pins,lines,text)    0:00:00

========= check xnets                        0:00:00

========= check nets                         0:00:00

========= check standalone branches          0:00:00

========= check standalone filled rectangles 0:00:00

========= check standalone lines             0:00:00

========= check standalone text              0:00:00

========= check standalone rectangles        0:00:00

..... Total number of DRC errors  0

..... DRC update completed, total CPU time   0:00:00

*************************************************************************

When I open first time the pcb file and open the viewlog, it shows me more than one. but when I select ROUTE/PCB ROUTER/ROUTE AUTOMATIC then it show me the error and the view log is only one.

and the viwelog fle:

# 
# ===============================================================================
#                               Allegro PCB Router                               
# Copyright 1990-2010 Cadence Design Systems, Inc.  All Rights Reserved.
# ===============================================================================
# 
# Software licensed for sale by Cadence Design Systems, Inc.
# Current time = Wed Sep 09 11:32:25 2020
# 
# Allegro PCB Router v17-2-50 made 2016/03/28 at 15:56:36
# Running on: desktop-t3eoom5, OS Version: WindowsNT 6.2.9200, Architecture: Intel Pentium II, III, or 4
# <> Unrecognized argument: v17400_0
# Licensing: The program will not obey any unlicensed rules
# <> Unrecognized argument: C:/Users/Personal/OneDrive/Proyectos/PCB v3 v1.dsn
# No graphics will be displayed.
# Design Name v3\design
# Batch File Name: pasde.do
# Startup: File Not Found : v3\design