cope
If you don't know Mazandarani or Persian, don't let this bother you or make you worried, there are many foreigners and Iranians there who speak English in the city.Also it is recommended to appreciate the native people who are not able to talk to you in English with these Mazandarani sentences: Tie Fieda or Tie ri Bielaarremi, but please extend your voice like singing since people can better understood while they extend their voice.
contact
There are many Internet cafés and chat rooms scattered all over the city, the Internet speeds ranges from acceptable to fast.To finding high speed internet providers yourself, look that if it has server or not, Foreigners usally use the Cafes around the Time Square.