Router crashing and rebooting after port fowarding attempt.

[#1]

I have tried to port forward the following ports on my router:

UDP: 47998, 48000, 47999, 48010

But after trying to apply these settings my router crashes and reboots. Also, if I try to access the port forwarding section of my router it then crashes again and reboots. The only way I can get back into the port forwarding section of my router is to reset it.

Image Attached.

[#2]

Hi there,

Have you followed the steps here: https://community.plus.net/t5/Gaming/Plusnet-Routers-and-Port-Forwarding/m-p/1307974#M17457

From the screenshot attached it does seem like it but thought it was worth double checking.

[#3]

Yes, I have followed those steps. That was same page i went through to set the port forwarding as i was unsure about which numbers to put in the translate to columns.