I bought this 4G router a month ago, and since then I have problems with surfing the web. Let's say that I open multiple tabs in browser with different web sites, and few of them won't be available. Also when I try pinging that sites, it's not responding. After many refreshes , sites become available. This happens with any site randomly. What could cause this problem? It's very annoying... Thanks.
p.s. there is no problem if I use my other router (ZTE MF283+).
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