Roku not finding network (vodafone)

ScarletCelestia 

If you are able to connect the 3930 to your hotspot and stream content (since you used it to perform an update), then try the following.

1. Go to the web admin of the Vodafone THG3000 by entering 192.168.1.1 in a web browser.  Enter the password found on bottom of router. (Or "rooter" as you may pronounce it).

2. Look near the top right and change "Basic mode" to "Expert"

3. Look under the Wi-Fi Settings (left side menu) and try setting the Wifi Mode to "Mixed 802.11 b/g/n" and 20mhz Bandwidth.

4. Under the MAC Filter, verify that it is toggled to "Off"

5. The DNS settings you are using should be fine. (1.1.1.1 is a Cloudflare DNS and 8.8.8.8 is a Google DNS).  The DNS will only be used during internet connection/streaming and won't affect network/LAN connection. (ie. connection of devices to the network).

6. Save the new changes and Restart both the THG3000 and the Roku device.

7. If still no luck seeing the SSID, perform a Network Connection Reset on the Roku device from within Settings/System/Advanced System Settings/Network Connection Reset/Reset Connection.

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Looks like the firmware prevents changing the channels on the 2.4ghz and 5ghz bands so will need to use the web admin (or a wifi analyzer app) to see which channel the router is using. (just to verify that it is indeed using the channels specifiied in your settings and not automatically choosing an unsupported 12/13 channel).   Feel free to post an update if still having issues.  Make note if any of the above had any effect/no effect.  This router appears to be pretty locked down and some workarounds to Settings changes (channel selection) via the Vodaphone app seem to have been removed with firmware updates.