# Power will not stay on - PortServer TS1

**URL:** <https://forums.digi.com/t/power-will-not-stay-on-portserver-ts1/16084>\
**Category:** Realport\
**Tags:** power-issue\
**Created:** [January 13, 2016, 4:36pm UTC](https://forums.digi.com/t/power-will-not-stay-on-portserver-ts1/16084 "2016-01-13T16:36:01Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![blaineh](https://avatars.discourse-cdn.com/v4/letter/b/b77776/32.png) [@blaineh](https://forums.digi.com/u/blaineh)\
**Post date:** [January 13, 2016, 4:36pm UTC](https://forums.digi.com/t/power-will-not-stay-on-portserver-ts1/16084/1 "2016-01-13T16:36:01Z")

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Hi!  
We just purchased a hardened TS 1 - I’ve got a possible power issue.  
When I connect the power (12Vdc 500ma), the PWR READY lights flash then go out and immediately the LINK ACT lights flash then go out - then there are no lights on. When I disconnect the power and reconnect, the same thing happens again. I thought it may be overcurrent protection so I tried a 9Vdc 300ma - same thing happens so I figured maybe it’s undercurrent, so I tried a 13Vdc 1000ma and the same thing happened.  
Could we have a defective unit? Or am I missing something??  
It would be nice to get some real support on a brand new unit.  
Thank you for any help!  
Blaine

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**Author:** ![userid0](https://avatars.discourse-cdn.com/v4/letter/u/f6c823/32.png) [@userid0](https://forums.digi.com/u/userid0)\
**Post date:** [January 14, 2016, 7:56am UTC](https://forums.digi.com/t/power-will-not-stay-on-portserver-ts1/16084/2 "2016-01-14T07:56:15Z")

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According to the specifications, 12VDC 500mA should work:

[http://www.digi.com/products/serial-servers/industrial-hardened-serial-servers/portservertshfamily#specifications](http://www.digi.com/products/serial-servers/industrial-hardened-serial-servers/portservertshfamily#specifications)

Are you using a Digi provided power supply?

It is possible the unit is defective, you should reach out to Digi Tech. Support to determine whether an RMA is needed.

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**Author:** ![blaineh](https://avatars.discourse-cdn.com/v4/letter/b/b77776/32.png) [@blaineh](https://forums.digi.com/u/blaineh)\
**Post date:** [January 14, 2016, 8:09am UTC](https://forums.digi.com/t/power-will-not-stay-on-portserver-ts1/16084/3 "2016-01-14T08:09:35Z")

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Thanks for the reply! I wanted to reach out to Digi tech support, but I can’t find a link anywhere to ask a question without paying!  
I am not using a digi power supply, but I have several extra supplies that fall within the rated vdc/current range and none seem to work.  
Thanks again!  
Blaine

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**Author:** ![blaineh](https://avatars.discourse-cdn.com/v4/letter/b/b77776/32.png) [@blaineh](https://forums.digi.com/u/blaineh)\
**Post date:** [January 14, 2016, 10:40am UTC](https://forums.digi.com/t/power-will-not-stay-on-portserver-ts1/16084/4 "2016-01-14T10:40:10Z")

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Ah ha! Just FYI - It’s totally my bad. (I hate that saying) anyway - it takes almost 60 seconds for the port server to boot up. If I had had an Ethernet cable plugged in during power-up, I would of seen activity. Without it, the power light will not come on until unit is fully active. I didn’t find this in the documentation, so I apologize.  
Thank you!  
Blaine