Hello C-band,
If you will be not satisfied with any suggestion then i personally advice you to take help from google with the use of "MAX cable length for a V3000" keyword. I am sure you will got appropriate results from them.
Hey u have provide nice information here so anybody can get idea relate to it. But sometimes there may be some problem in internet connectivity during travel so what should do for perventing these types of problems?
I think this is the problem of the signals which affects and prevent to send the signal. But once u will be adjusted with it then u will have habit of it. :)