# Not able to open PYNQ of on jupyter notebook **URL:** \ **Category:** Support\ **Created:** [January 16, 2020, 4:52am UTC](https://discuss.pynq.io/t/not-able-to-open-pynq-of-on-jupyter-notebook/862 "2020-01-16T04:52:28Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![srinivasan74](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/srinivasan74/32/335_2.png) [@srinivasan74](https://discuss.pynq.io/u/srinivasan74)\ **Post date:** [January 16, 2020, 4:52am UTC](https://discuss.pynq.io/t/not-able-to-open-pynq-of-on-jupyter-notebook/862/1 "2020-01-16T04:52:29Z")
![error](https://us1.discourse-cdn.com/flex019/uploads/pynq1/original/1X/ac294935203226b32ce69e80ab5a33b8a1df3742.png) Please help me fix this ---
**Author:** ![cathalmccabe](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/cathalmccabe/32/3348_2.png) [@cathalmccabe](https://discuss.pynq.io/u/cathalmccabe)\ **Post date:** [January 16, 2020, 7:28am UTC](https://discuss.pynq.io/t/not-able-to-open-pynq-of-on-jupyter-notebook/862/2 "2020-01-16T07:28:51Z")
Which board & PYNQ image are you using? Is this a new image, or an image you have been working with for some time? Can you try check the log: ```auto /var/log/jupyter.log ``` Can you try start Jupyter manually ```auto jupyter notebook --no-browser --allow-root ``` Cathal ---
**Author:** ![srinivasan74](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/srinivasan74/32/335_2.png) [@srinivasan74](https://discuss.pynq.io/u/srinivasan74)\ **Post date:** [January 16, 2020, 4:42pm UTC](https://discuss.pynq.io/t/not-able-to-open-pynq-of-on-jupyter-notebook/862/3 "2020-01-16T16:42:49Z")
I am using the PYNQ Z2 board and image version 2.5 ---
**Author:** ![srinivasan74](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/srinivasan74/32/335_2.png) [@srinivasan74](https://discuss.pynq.io/u/srinivasan74)\ **Post date:** [January 16, 2020, 4:54pm UTC](https://discuss.pynq.io/t/not-able-to-open-pynq-of-on-jupyter-notebook/862/4 "2020-01-16T16:54:48Z")
![pynq](https://us1.discourse-cdn.com/flex019/uploads/pynq1/original/1X/5cac63b03fab70b17e53b256974de6a6835f7615.png) The Linux is booting but I am not able to connect the jupyter notebook ---
**Author:** ![PeterOgden](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/peterogden/32/55_2.png) [@PeterOgden](https://discuss.pynq.io/u/PeterOgden)\ **Post date:** [January 16, 2020, 5:14pm UTC](https://discuss.pynq.io/t/not-able-to-open-pynq-of-on-jupyter-notebook/862/5 "2020-01-16T17:14:41Z")
Can you try the resolution in [How I worked around startup issues with pynq z1](https://discuss.pynq.io/t/how-i-worked-around-startup-issues-with-pynq-z1/713)? Peter ---
**Author:** ![shravan-red](https://avatars.discourse-cdn.com/v4/letter/s/50afbb/32.png) [@shravan-red](https://discuss.pynq.io/u/shravan-red)\ **Post date:** [January 17, 2020, 5:28am UTC](https://discuss.pynq.io/t/not-able-to-open-pynq-of-on-jupyter-notebook/862/6 "2020-01-17T05:28:26Z")
Hi, Peter. I flashed the image version 2.4 onto the SD card and now I am able to open and use Jupyter Notebooks. However, I have been facing a problem ![certificates_error](https://us1.discourse-cdn.com/flex019/uploads/pynq1/original/1X/e4b831278bebaadeffae270d52cc747af21f09bd.jpeg) when trying to run git clone commands to run a QNN model from this repo : [GitHub - Xilinx/QNN-MO-PYNQ](https://github.com/Xilinx/QNN-MO-PYNQ). ---
**Author:** ![PeterOgden](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/peterogden/32/55_2.png) [@PeterOgden](https://discuss.pynq.io/u/PeterOgden)\ **Post date:** [January 17, 2020, 10:27am UTC](https://discuss.pynq.io/t/not-able-to-open-pynq-of-on-jupyter-notebook/862/7 "2020-01-17T10:27:43Z")
Try updating the system clock with `sudo date -s YYYY/MM/DD hh:mm:ss`. The 2.4 image is pretty old and it’s possible that the system time is earlier than the start time of the github certificate. Peter