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Solved
LB1120 suddenly very slow with AT&T SIM
Hello. We had been using an LB1120 LTE modem for several years when it just failed. We bought a new one, and installed our existing SIM card (AT&T, from the old failed 1120) and it worked great for a...
You've got a pretty complicate setup there. Not the sort of thing that many people here will have seen. That probably includes Netgear.
Have you talked to AT&T?
One thing to consider with a complicated setup like that is to restart the whole network in the recommended order.
Be sure to restart your network in this sequence:
- Turn off and unplug modem.
- Turn off router and computers.
- Plug in and turn on modem. Wait 2 minutes for it to connect.
- Turn on the router and wait 2 minutes for it connect.
- Turn on computers and rest of network.
You've got a pretty complicate setup there. Not the sort of thing that many people here will have seen. That probably includes Netgear.
Have you talked to AT&T?
One thing to consider with a complicated setup like that is to restart the whole network in the recommended order.
Be sure to restart your network in this sequence:
- Turn off and unplug modem.
- Turn off router and computers.
- Plug in and turn on modem. Wait 2 minutes for it to connect.
- Turn on the router and wait 2 minutes for it connect.
- Turn on computers and rest of network.
OK. Situation normal now. I took MichaelKenward's advice to a degree. Turns out it was not the modem after all. Through a process of elimination, that first had me plugging the modem directly into my laptop, I discovered my speeds returned to normal by going direct connection. I did a bit of research on the Google Wifi Mesh router system, and saw where other had had similar speed reduction issues. The two prominent "fixes" were to replace the CAT5 with a CAT6 cable (I was using the supplied cable), and a Mesh factory reset. Viola! After the Google factory reset and reinstalling the router system, my speeds are now back to where they had been.
So, sorry for the waste of space here. I guess I am off to the Google Wifi forums to find out more information on why this happened.
Thanks again all!
CG