... | @@ -115,4 +115,14 @@ NOTE: Samsung begun SIM locking in recent smartphones, see this |
... | @@ -115,4 +115,14 @@ NOTE: Samsung begun SIM locking in recent smartphones, see this |
|
To avoid problems, you need to program your SIM cards with the MCC
|
|
To avoid problems, you need to program your SIM cards with the MCC
|
|
and MNC to the home region of the smarphone.
|
|
and MNC to the home region of the smarphone.
|
|
|
|
|
|
-- @navid.nikaein - 17 Oct 2015 |
|
# Known Issue (UE cannot browse Internet even though it is connected)
|
|
|
|
Sometimes, the UE can not browse the internet if the MTU of its LTE interface is higher than 1428.
|
|
|
|
OAI EPC is transmitting a message at some point indicating the mtu size the UE should use for this interface, but some UEs ignore it and use 1500 mtu (that does not work).
|
|
|
|
From my tests:
|
|
|
|
- Moto G 4G Android 4.4.4 : ok
|
|
|
|
- Samsung GS5 Android 5.0.1 : mtu 1500, does not work out of the box, need root to set mtu.
|
|
|
|
- Samsung GS6 Android 5.0.1 : same as GS5, needs root.
|
|
|
|
- Sony Xperia Z2 tablet Android 4.4.4 : mtu 1500, needs root. Android 5.0.1: mtu 1500, needs root. Android 6.0 : mtu 1428, ok.
|
|
|
|
- Huawei e392 : mtu 1500 on windows or linux, can be fixed with sudo ifconfig wwan0 mtu 1428 and another specific command on windows.
|
|
|
|
|
|
|
|
On Android, the interface is usually called rmnet0 or rmnet_data0. On some phone it shows up with "netcfg", on some with "ifconfig", on some you need to be root to list the interface and see the parameters. It is accessible (cat to see, or echo (a priori needs root to work) to set the value) in /sys/class/net/interfacename/mtu |