How to attemp xbee ntrip from outside

Hi all,
I’ve configure my router to attemp xbee wifi ntrip from outside via my ddns, but i can observe that when i’m connecting me via outside, the password field on my wifi settiing is clear, i need to always refill in the password of my rooter before reloading.
This is only from outside, by local network, password is always present.
How can do to fix this issue
Thanks