Posts Tagged ‘wifi’

Fix for T-Mobile MMS not working with Wifi [Calling] connected. (Group and Picture texts)

I like to buy my own phones and bring them to my plan. Sometimes this results in not having the full config to make the phone work 100% on a carrier. I recently fixed issues where I could not receive MMS messages if I had an active wifi connection. When my phone is on wifi, […]

Fix Apple Macbook Air/Pro Wifi Roaming Wireless Problems

As it can be expected from Apple, there is no user interface to adjust or change the wifi roaming agressiveness. This is VERY IMPORTANT if for example you use Macbooks in a very dense wifi environment. If you have a Macbook that’s dropping packets when roaming or having trouble roaming from AP to AP, then […]

T-Mobile Wifi Calling – ER081 Firewall Port Summary

Open the following ports on your firewall: TCP 5060-5061 UDP 4500 (aka IKE Traversal)  –  Note: This is the port the call data goes through Additionally, you may need to let IKE Key Exchange traffic through. UDP 500 Other errors: REG99 – Go to my.t-mobile.com and update your E911 address (even if you previously have)