On 03/12/2018 15:47, R D S wrote:
What could cause a network to clag up?

Thanks for all the responses, I can't log into the router, none of the
possible default passwords i've Googled work, and i'm beyond certain I
haven't changed it. And for some reason it won't factory reset.

I remember we had bother with another router some years back, it was
getting so hot it was going brown.

I'll bin it and get something better.