TP-Link wrote

Hi, When the ping via MR600 reaches 150m/s, is there any problem you have noticed on the MR600, such as the webpage is not loading, the internet dropped out?

 

My MR600 never gave me a usable or stable SIP connection, even at rare periods of 40 to 80ms latencies. Same SIM in a 4 year old LTE phone & same physical position did work with SIP, also managed consistently better latency - though still not good.

I have just a high ping but no disconnects at all. I think I found a way to solve this issue:

I installed the LTE Discovery App (https://play.google.com/store/apps/details?id=net.simplyadvanced.ltediscovery&hl=en&gl=US) to find out which bands my smartphone is usually using and changed the band selection from automatic to manual with the bands I noted down before.

So far I have a way better ping and more upload speed. I will monitor this further and report back incase something happens.

For Swisscom I selected band 1, 3 and 20.

TP-Link wrote

@JerryAtrick 

Thanks for the update.

How about the second test via mobile hotspot?

As for the unstable ISP connection, have you tried the beta firmware to fix the 4G bands?

[Troubleshooting] LTE keeps disconnecting

@TP-Link

1: the same SIM is giving near perfect behaviour (inc SIP) running tethered or as a WiFi hotspot in a cheap Xiaomi phone. Even when latency occasionally rises above 40ms. Probaby because it has massively better radio's than the MR600, sitting in exactly the same spot the MR600 used to.

2: the only way I ever got a passably stable MR600 LTE connection was using beta firmware! Mine simply cannot see band20 for 4G+ and never chose the best band by itself.