LTE5366-M608 doesn't allow packets with MTU > 1400 bytes

Neuling94 Posts: 1
edited July 4 in Mobile Broadband
Hi there!

I use Zyxel LTE5366-M608 to do LTE-channel.
Router was set up in "Bridge mode" and MTU = 1500 bytes was selected during configuration of APN.

But nevertheless I can see that router doesn't transmit packets with MTU > 1400 (without fragmentation).
How can I solve it?
I need to provide MTU = 1500 bytes. 

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