# Ignition 7.9 GCU doesn't work **URL:** \ **Category:** Ignition\ **Tags:** ignition79\ **Created:** [February 5, 2021, 5:29pm UTC](https://forum.inductiveautomation.com/t/ignition-7-9-gcu-doesnt-work/43078 "2021-02-05T17:29:00Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![daniele1](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/daniele1/32/31531_2.png) [@daniele1](https://forum.inductiveautomation.com/u/daniele1)\ **Post date:** [February 5, 2021, 5:29pm UTC](https://forum.inductiveautomation.com/t/ignition-7-9-gcu-doesnt-work/43078/1 "2021-02-05T17:29:00Z")
Hi, I made the classic mistake of changing the roles’ names and then log out, now I can’t access the Gateway. I tried using GCU to reset the user/password to admin/password but it doesn’t work, actually not a single GCU command works. Also GCU’s gateway status is wrong: it says its offline when it’s online. Help ![IgnitionGateway_GCU](https://us1.discourse-cdn.com/inductiveautomation/original/3X/c/1/c1a091344ef5d69d9887011555a302ec131079f1.png) ---
**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\ **Post date:** [February 5, 2021, 5:59pm UTC](https://forum.inductiveautomation.com/t/ignition-7-9-gcu-doesnt-work/43078/2 "2021-02-05T17:59:56Z")
Try right-click \> Run as Admin when launching the GCU. ---
**Author:** ![Herbie](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/herbie/32/65288_2.png) [@Herbie](https://forum.inductiveautomation.com/u/Herbie)\ **Post date:** [February 5, 2021, 6:43pm UTC](https://forum.inductiveautomation.com/t/ignition-7-9-gcu-doesnt-work/43078/3 "2021-02-05T18:43:45Z")
This might be a dumb question, but you posted as Ignition 7.9, but are you on Ignition 8+? The gateway you have shown is for Version 8. I also thought in version 8 that the GCU is no longer available, and was replaced by the command-line utility (notable still GCU - tisk, tisk IA - very confusing). If you have the Gateway Control Utility, I don’t think it works with 8. I haven’t dived into 8 territory yet, so I’m not familiar with what’s available. I also thought that with Ignition 8, you would need to use the Gateway Command-Line Utility instead ([https://docs.inductiveautomation.com/display/DOC80/Gateway+Command-line+Utility](https://docs.inductiveautomation.com/display/DOC80/Gateway+Command-line+Utility)) ---
**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\ **Post date:** [February 5, 2021, 6:50pm UTC](https://forum.inductiveautomation.com/t/ignition-7-9-gcu-doesnt-work/43078/4 "2021-02-05T18:50:40Z")
Good catch @Herbie! That is not a 7.9 gateway and there is no graphical GCU for 8.0. ---
**Author:** ![daniele1](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/daniele1/32/31531_2.png) [@daniele1](https://forum.inductiveautomation.com/u/daniele1)\ **Post date:** [February 6, 2021, 3:52pm UTC](https://forum.inductiveautomation.com/t/ignition-7-9-gcu-doesnt-work/43078/5 "2021-02-06T15:52:52Z")
Thank you @Herbie, I panicked a bit and I saw the first folder in the Program files directory with the Ignition name on it and I thought it was the right installation folder. Today I scrolled down a bit and I saw the Igniton folder with the 8.0 files. I used the gwcmd -p command and it worked. Thanks everybody