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I’m using a 4G router, Huawei B535, for a couple of weeks but my mesh network isn’t working and the discs just flash blue I’ve turned the router wifi off. Has anyone successfully us the BT discs with this router? If so, any tips?
It should work fine - I use a Huawei B618s but similar to your B535. One thing to watch out for is that one of the Ethernet ports on Huawei 4G routers is labelled LAN/WAN and the router sometimes gets a bit confused and assumes your wi-fi disc is a WAN rather than LAN connection - if you go into the router admin pages and under Ethernet Settings change it to "LAN only" the problem goes away. (Or you could just use one of the other Ethernet ports). I didn't have to do any reconfig on the discs, but may be worth trying a factory reset if all else fails.
Also, flashing blue light is not firmware updating (that's purple light) - it's just the discs trying to sync with the master disc (and failing)...