Packet Tracer Login Failing

[colmh]

Hi,

This is my first time posting on here on what has been a pretty frustrating issue so I really am hopeful for some help. I cannot use packet tracer because my login is failing any time I have tried today. I am following an online course and have basically wasted one of the two days a week that I have to study trying to resolve this.

Even though I am already logged into Netcad on one tab, when I try to log in to the page that packet tracer opens, it fails and then closes packet tracer. I've seen nothing online about this so I guess it's just me. :(

I have disabled my AV, Firewall, cleared cache, there is no popup blocker installed. I have uninstalled it, gone back to Netcad and downloaded it, and (even while still logged in), packet tracer login fails. I have messaged Cisco on facebook hours ago, with no reply as yet. Is there anyone else out there experiencing this?

Really hoping to get some help on here, so I can salvage tomorrow and get some study done before I get back to work on Monday.

I'll attach 2x snips of the what I get. (the first one even shows me as being logged in!)

Thanks in advance for any advice

[gerd_wollinger]

I have the same problem too, but i have found a workaround.

1. Start an existing PT-Lab (any, doesn't matter)

2. After the error message, close that window

3. Now an "authentication Failed" windows appears. Just click OK

4. On the next windows "Exit -- Packet Tracer" click cancel

5. Voilá. You can work in this lab or just create a new one!

[colmh]

Hi Gerd,
Nice find, well done!!
I've tried it and it works.

Unfortunately, I'm outa time, gota start prepping for work tomorrow.
I won't have time to study again until next weekend.
Hopefully they,ll have it fixed by then!!

[johnpeterpaulf85165]

it worked! thanks!

[sonampaal20]

It's not working.. everytime I click on any host to configure a blank window appears.

[Georg Pauwen]

Hello,

can you post a screenshot ?

[sonnybm5425873]

pa que quieres saber eso jajaja salu2

[Bothayna Omar]

Hi colmh

Have you tried to disconnect the Internet and then run the PT ?

I tried it and it worked .

But I am not sure that the success is complete because I tried to configure of the end devices (as IP pc) properties, but a black window appears I don't know what the problem is!

 i tried  gerd_wollinger's steps but also not worked

if worked with you please tell me .

thank you

[00uu6u892gwCjCzAl5d6]

it worked for me. I first installed and the message came to select public or private network. I choose Private. Then Windows firewall keeps blocking it whenever I tried to launch the program. But disconnecting pc from internet allows it to run. 

[fredan]

That worked for me, thank you.

[Bothayna Omar]

Hi, every one

In my previous answer, when I opened the PT program, I disconnected my internet connection, and then the program would run easily

However, I can't modify the settings of any device I set up in the network, however ...

I want to say that the black window that was appearing to me is a problem in my computer's memory. I think the space is small because my device is very old (:))
I tried a lot of solutions, and it worked.
Anyone who has the previous problem should know that it is due to problems with the computer memory, and you can do some of the following steps to help:
- There is a tool called Memory Cleaner that helps refresh the memory. I tried it, you can visit this person's blog and download it https://www.koshyjohn.com/software/memclean/
Also on the following site there are many tools that help refresh memory
https://www.geckoandfly.com/24233/free-optimize-ram-memory/

It is also better to close the Internet browser (Firefox, Chrome, Opera, and others) because they are occupying the memory
- On my part, the McAfee anti-virus program is memory-exhausting (I do not recommend against using it), but it should be paused when using the PT program.
- At the end, you can go to the task manager and press F5 to refresh the memory. That helps a lot.

thank you.

[Abhishek69]

Have done all the things that you recommended but still the problem persist. i am not able to open specification tab of any component, rather a black screen pops up every time.

[Bothayna Omar]

Maybe you have a problem with something else.

Is your OS(operating system) Windows 7 and your PT version8 ?

If so, try downloading version 7. 

I hope that is help you. 

[suppexam]

I still have this circumstance, Please refer to attachment. The circle bar have not been completely finished loading. I can just force to click "guest login' ( I just have 3 times on saving my exercise as I am a guest). Can someone help me?
I use window 7 so my version of packet tracer I am using is old version one

[SolutionsStudio]

https://youtu.be/wjT-jkdbJ94