Not working wifi in Garden house

[TWa]

Recently the wifi to my garden room 30 mts away from house failed. It is fed by an Ethernet cable from a box in the main house. The service in the main house is fine.

[TimmyBGood]

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@TWa wrote:

It is fed by an Ethernet cable from a box in the main house.

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That would be outside the remit of any ISP, so I'm afraid you'll need to troubleshoot it yourself or get someone else to do so.

As a start, if possible check the ethernet in the main house.