Posts Tagged ‘wifi’

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 and update your E911 address (even if you previously have)

Fix Surface RT Limited Wifi Connection

NOTE: Changing the BAND settings below will cause 5Ghz wifi to no  longer work on your Surface. You must keep BAND at 6 for 5Ghz wifi connectivity. 10/31/2016 UPDATE: This setting is now found in the following location: [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4d36e972-e325-11ce-bfc1-08002be10318}\0000] “Band”=dword:00000004 “[2.4Ghz or 5Ghz]AutoUse40MHz”=dword:00000000 Tip came from: and modified slightly by me. This helpful tip […]

Google’s “Wifi Location Opt-Out” policy is horrible and flawed.

In one of my previous posts, I wrote how Google and other companies are tracking our locations via Wifi routers. In order to do that, these company must have a database that stores all of the wifi routers it can find, and their locations. Google FINALLY just introduced a way to remove your router from […]