Viber messenger not working on my ad-hoc wireless network I have an iPhone 5 (iOS 6.1.1) and I installed Viber messenger (version 2.2.2.86) which enables you to make phone calls over the internet. The messenger works perfectly when I use a wireless router to connect to the internet (which I don't have at home) but when I connect to my Windows XP ad-hoc network, I can't make phone calls. the call is dropped after 3 to 4 seconds and I can't receive calls either. This only happens on my ad-hoc network.


The computer connects to the internet through 3G modem
I tried updating to the latest version of Viber (2.3.1) from apple but no good
My friend has an older iPhone (probably 3G or 4) and he has the same exact version of Viber. When he tries to use my ad-hoc network, it works and he can call and receive calls.
I can't use my 3G sim card directly on my iPhone, I have to go through the ad-hoc network.


What could be the problem and solution to this dilemma?
Because your friends iDevice works, it may make this consideration useless. http://www.viberfaq.com/why-cant-i-use-viber-on-some-wi-fi-networks/ suggests that these ports are required for Viber to work.


TCP: 5242 and 4244
UDP: 5243 and 7985 (9785) (7985 is the port specified on the Viber) troubleshooter


However, the symptoms of having closed ports would be no connection to Viber. Maybe there is an application taking these ports on your Windows Machine intermittently.