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Forum Discussion
Nighthawk M1 MR1100 loses signal when external antenna connected
My Nighthawk M1 MR1100 works good and keeps a steady connection to AT&T for days at a time but when I plug in my external antenna (a poynting Omni-600) I lose the signal usually within 10-30 minutes. It still shows 4 bars or so but no AT&T 4G symbol. Once it stayed connected for a couple of hours. I have to restart the hotspot to reconnect to LTE 4G. What could possibly be going on? I only use this in my camper during the summer. It worked fine all last summer but now this.
Thanks for any help.
Thanks for any help.
1 Reply
I had similar situation with MR1100-2A1NAS (with or without external antenna) which started summer of 2002. Rebooting the hotspot would resolve the issue but only for a couple of hours. Some folks speculate that transparent AT&T DNS proxy servers cause the problem which can be fixed by using secure VPN connection (like NordVPN) to bypass (see https://forums.att.com/conversations/other-phones-devices/att-transparent-proxy-not-stable-hanging-connections-to-websites/5ee7bfdf483393542c96b341). I tried this and it seemed to work better but has side effect of slower speed via encryption, multiple hops and subscription cost. It also requires having a router in line that supports OpenVPN (UDP) and creating outbound routing rules for streaming/gaming apps that don't like VPN (like Amazon Prime).
However, I read a post on AT&T community that a new SIM card fixed the problem for one user. I ordered a new SIM card from AT&T and PRESTO, everything started working again with a 20 Mbps increase in download speeds. According to AT&T tech, my older SIM card was provisioned for 3G/4G LTE service while the new one is provisioned for 4G LTE/5G. And possibly because 3G cellar service was terminated on my tower this summer caused the issue to surface. Hope this helps.