Thanks for your note, GregorK. It made me realize that I had a new router installed a few weeks ago, and never portforwarded Phex with it. I didn't think to do that because Phex was still working. So I tried to do a port forwarding as best as I could even though the brand of my new router is not listed at portforward.com (I live in Thailand and have some Chinese router that uses a sticker to designate the name of the local ISP as its brand; there is no brand stamped on the router itself). I chose a router brand that had a model number similar to my model, and did the best I could in setting up a port forwarding. Then I did a search, and got lots of legitimate hits on it, so it seems to be working a lot better now. If I encounter problems again, I'll post again.