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+--- Forum: TDS GTNXi XPlane (https://www.tdssim.com/forum/forum-3.html)
+--- Thread: only one on two GTN works (/thread-1777.html)
only one on two GTN works - FizzNick - 05-17-2026
I've been using your product for a while now, and today I was surprised to find that neither of the two 750s on board were working at first. After reading the forum, I restarted my computer and now only one is working. For your information, I'm flying with the Torquesim Citation for X-Plane 12.
Thank you for your help.
RE: only one on two GTN works - adminOwner2 - 05-18-2026
Hello,
Can you please check for electrical power, as the GTNXi units are tied to different electrical sources. This you can always adjust to "Always on' as a test, via the Plugins menu\TDS GTNXi Unit 1/2 /Settings, as described in the TDS GTNXI XPlane PDF manual.
A different test for the dual GTNXi config (750Xi + 650Xi) in the default C172 with the TDS GTNXi integration:
https://forums.x-plane.org/files/file/94858-default-laminar-cessna-172-sp-tds-gtn-and-avitab-integration-rep-compatible/
RE: only one on two GTN works - FizzNick - 05-18-2026
I can't access the settings for the second GTN750. I also have the XP Reality, which works fine on both units. Between two restarts of X-Plane, without me touching anything, the second unit stopped working. I can't even get a log for Unit 2.
ok I re isntall the Torquesim Citation and now it's working fine... that is strange but it's solved
RE: only one on two GTN works - adminOwner2 - 05-19-2026
Hello,
Thank you for letting us know. We strongly recommend uninstalling other third party GTN GPS units as they will cause conflicts, when running the TDS GTNXi XPlane.