Indeed. It is no longer possible to find a way around the "Sunday restart". IB has made this impossible, and they did so on purpose.Same story and solution for me. IBCalpha couldn't restart my gateway, so I upgraded both the gateway and IBCalpha; IBCalpha now doesn't work at all. But I'm using the new 'built in' once a week option. Not ideal as I inevitably forget to do the restart. On the upside it's one less dependency on a hobby project which is subject to the whims of the IB developers.
I've been reading the threads on here but I can't seem to find a workaround whereby IBCalpha will work as it used to, or do the Sunday restart.
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Previously I could go on a multi-week holiday and have IBCalpha take care of the restarts. Now I am no longer able to do that. Either I have to find software which lets me remotely log on to my trading server at home. Or I would need to put my software at a VPS which I can access via an internet browser. Both solutions come at a cost.