A particular client whom I provide email hosting support for, has problems connecting to the mail server using iPhone, via IMAP and on the China Mobile 3G data plan in China.
When asked over the phone what error message he got on the iPhone, he says iPhone only reports cannot connect to server. He says when using WiFi everything is fine.
In general, are there any ways I can troubleshoot the 3G network?
Best Answer
There is zTools on the App store, like 99 cents, will do Ping, Trace, Whois, Port scan, etc. Maybe this is what you're looking for? This is the only one I know because I have it, perhaps there is other, similar apps on the store.