09-22-2019, 07:02 AM
If they've added any cell towers near your location it could be interfering with your reception. Fortunately the 4G filters are cheap. I don't use one and can't make a recommendation but you can probably get an idea from the amazon reviews which ones work:
https://www.amazon.com/Kenable-Shielded-Filter-Screw-Sockets/dp/B00L3667WK/ref=sr_1_4?keywords=4g+filter&qid=1569186205&s=gateway&sr=8-4
https://www.amazon.com/Antra-5-700Mhz-Purifier-reducing-Interference/dp/B07MX2VHQT/ref=as_li_ss_tl?keywords=4g+filter&qid=1569185959&s=gateway&sr=8-3&linkCode=ll1&tag=pw016-20&linkId=56bf12fbe71937b9ec526814a6db8bb0&language=en_US
https://www.amazon.com/Kenable-Shielded-Filter-Screw-Sockets/dp/B00L3667WK/ref=sr_1_4?keywords=4g+filter&qid=1569186205&s=gateway&sr=8-4
https://www.amazon.com/Antra-5-700Mhz-Purifier-reducing-Interference/dp/B07MX2VHQT/ref=as_li_ss_tl?keywords=4g+filter&qid=1569185959&s=gateway&sr=8-3&linkCode=ll1&tag=pw016-20&linkId=56bf12fbe71937b9ec526814a6db8bb0&language=en_US