Internet works only partially. Optik TV boxes offline

[wireless]

Have the strangest issue I've been experiencing for about a month now. Have had my modem swapped to the Telus Wifi Hub w/ Nokia Fiber box and the problem still exists. My Internet only decides to work on certain sites on Wifi. Sites like CNN load fine but speed test gives connection errors across multiple devices. My smart tv connected via WiFi loads YouTube and can play video but all my smart cameras and light switches are offline. All my OptikTV wireless boxes don't work either. Everything works when hardwired. I have factory reset the modem a few times now and done multiple reboots. Any help would be appreciated. Called Tech Support and they said it will cost me $150 to have a tech come out if they can't replicate the issue. My contract is up in 2 days and I'm tired of this back and forth with Telus.

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