I have RE 450 extender and I have replaced my internet Router from ISP to New HUAWEI 5G Outdoor CPE Model:  N5368X router. I reset my wifi extender and setup the device with new router SSIDs . The connection goes live and after 5 to 15 minutes got lost. I can not see the extended from the N5368X router and the device is not accessable from Tather App either.

I tested again with my old to HUAWEI Router it works for more than 1 hour with no issue on the exteneded ssid network.  Can you please help is the firmware not compitble with new N5368X router or there are other settings need to be modified.

I can not use my old router as I terminated my subscription plan for that type of router. 

 

I notice the issue happens when I connected to the extended SSID 2.4G. I tested through ethernet cable and  SSID 5G the operation was normal