How to resolve NAT Type: Unavailable

Hello, I would like some help with a Network issue on the Xbox One S.

As of late Wednesday(June 12), I've been unable to connect to Monster Hunter World Servers. I can see the servers as well as the sos requests and AM connected to Xbox live, however I can't connect to the servers. On the join attempt to a server I receive an error code(50383-MW1) which relates to the NAT Type of the Xbox(NAT Unavailable) and it says as much, I am running a wireless connection. I understand that it must be set to Open and that some game title servers won't work when trying to connect to them is it says unavailable, but I haven't had an issue like this on MHW before and do admit that I couldn't connect to some servers now and then, but not like this, It seems That I can't join any servers. I tried the troubleshooting advice on the Xbox help site, and tried to talk to my service provider(Astound RCN) about my router Connection. They told me that it was set to the default settings from the Manufactorer and that they couldn't remotely change the settings for me. I myself don't know how to access the router's interface to be able change things, and don't really understand it all.

I've been testing server connections on games like Monster Hunter Rise, Insurgency Sandstorm, and Rainbow Six Siege, and they seem fine, shoddy on Sandstorm I admit, but that's normal so to speak. A few days back I did encounter a player who could connect to the chat party but not to the game me and others were on on MHW.

I would like to know if there's anything Else I can do to fix this problem or if it's a temporary problem related to MHW, I read that a problem like this occured in the game back 6 years or so(related to the error code), but I don't think it's something like that. Many thanks and sorry for Rambling.

:)