I have a ADSL connection with snap internet.. This is in no way their problem. I have enquired with them but they have never seen/heard of this before.
I bought a high frequency tig (Tungsten Inert Gas) welder to use out in the garage.. Been using it for a while. Everytime I weld be it AC or DC our internet drops out.
I can hold a connection for weeks with no disconnects.. soon as I weld, Bam.. disconnect.
Nothing else reboots/crashes/power cycles, The router disconnects doesnt power cycle.
It's a Thompson router that you get from telecom when you sign up.
The welder has NOTHING to do with phone lines in any way shape or form.. But, it can draw up to 27 amps input for 200 amps output.