Same problem occured here last week and even did a format c, firmware of router and hard reset on that, nothing worked.
Today I had a friend in amsterdam on the phone and she has the same problem started last week as well.
"I wonderd if our isp has some to do with this"
When no router attatched it is working tho, but only on port 80 so I redid router config and used port 80
hfs working fine again but only on port 80 .... kinda strange .... I guess our isp blocks off ports to use as an answer but I could be mistaken.
Does anyone here has any idea how come hfs all the sudden only works on port 80 ?
I hope this is usefull info for the once that encounter problems.
Sindce HFS rocks! and is a free program, I took an efford to try and help solve this problem and share the knowledge.
good luck to the once experience this problem, I realy hope you be able to solve your problem.
Kind regards from here