No internet access when connecting tp link router in range extender mode to Huawei b612 233 4G modem
I am trying to extend the wifi coverage of a Huawei B612 233 4G router with a TL-WR940N in range extender mode. The TP Link is able to detect the Huawei and establish a connection (light is blue), however there is no internet access.
However, I also own a third wifi router. If I link it by ethernet cable to the Huawei AND connect the TP Link to router 3 in range extender mode internet works fine.
What could be the problem preventing the TP Link from connecting directly to the Huawei router? Would be grateful for any help.