It may even be something with the connection outside your house. I'd suggest contacting Telus directly and have them check. If there are issues or errors with the connection they can typicaly spot them pretty fast. Some fixes are also fast, but some may need a tech if it's a physical issue with hardware or phone lines.
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Contact methods are in the 'Contact Us' section at the bottom of the page. I suggest using Chat or contacting them by DM to TELUSsupport, over a call to their phone numbers, as you need not wait on the phone.
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