Good router but can not use my external antenna 4G Poynting-A0002 XPOL yet supposed to be compatible. The antennas are screwed but even by selecting "External antenna" in the administration interface, the reception is at 1 bar to 5 where I 5/5 with the 4G router with Dlink (same operator, same direction 4G antenna). I have seen many forums where other users also seem to have trouble with the inclusion of external antennas ... Conclusion: I'll probably return this router.