Unable to access Vercel servers from home Internet connection

This is related to 's issues, but since my traceroute output is very different, I though it best to create my own thread here, as recommended by .

Info from ipinfo.io:

1{2  "ip": "178.255.168.23",3  "hostname": "nat-23.starnet.cz",4  "city": "Prague",5  "region": "Prague",6  "country": "CZ",7  "loc": "50.0880,14.4208",8  "org": "AS44489 STARNET, s.r.o.",9  "postal": "110 00",10  "timezone": "Europe/Prague",11  "readme": "https://ipinfo.io/missingauth"12}

Lookup of vercel.com:

1# host vercel.com2vercel.com has address 76.76.21.223vercel.com has address 76.76.21.164

TCP traceroutes:

1# sudo traceroute -T -p 443 76.76.21.222traceroute to 76.76.21.22 (76.76.21.22), 30 hops max, 60 byte packets3 1  _gateway (10.0.1.1)  1.390 ms  1.357 ms  1.344 ms4 2  10.43.238.97 (10.43.238.97)  9.826 ms  9.813 ms  9.803 ms5 3  100.100.115.254 (100.100.115.254)  10.627 ms  10.616 ms  10.605 ms6 4  cust-starnet.supernetwork (88.86.97.209)  10.592 ms  10.579 ms cust-starnet.supernetwork.cz (88.86.97.137)  9.756 ms7 5  151.148.13.110 (151.148.13.110)  9.679 ms * *8 6  * 150.222.81.25 (150.222.81.25)  15.903 ms *9 7  * * *10 8  * * *11 9  * * *1210  * * *1311  * * *1412  * * *1513  * * *1614  * * *1715  * * *1816  * * *1917  * * *2018  * * *2119  * * *2220  * * *2321  * * *2422  * * *2523  * * *2624  * * *2725  * * *2826  * * *2927  * * *3028  * * *3129  * * *3230  * * *3334# sudo traceroute -T -p 443 76.76.21.16435traceroute to 76.76.21.164 (76.76.21.164), 30 hops max, 60 byte packets36 1  _gateway (10.0.1.1)  1.388 ms  1.355 ms  1.345 ms37 2  10.43.238.97 (10.43.238.97)  11.630 ms  11.569 ms  11.561 ms38 3  100.100.115.254 (100.100.115.254)  11.497 ms  11.680 ms *39 4  cust-starnet.supernetwork.cz (88.86.97.137)  11.526 ms  11.517 ms cust-starnet.supernetwork (88.86.97.209)  11.508 ms40 5  151.148.13.110 (151.148.13.110)  11.500 ms * *41 6  150.222.81.31 (150.222.81.31)  11.603 ms * *42 7  * * *43 8  * * *44 9  * * *4510  * * *4611  * * *4712  * * *4813  * * *4914  * * *5015  * * *5116  * * *5217  * * *5318  * * *5419  * * *5520  * * *5621  * * *5722  * * *5823  * * *5924  * * *6025  * * *6126  * * *6227  * * *6328  * * *6429  * * *6530  * * *

Hi, !

Could you also just follow the steps outlined in https://community.vercel.com/t/resolving-ip-blocking-issues/171?

Hi, I've looked at those instructions before. I'm certain this is not a problem with my device(s). Given the traceroute output above ends with an AWS IP address, it also seems to not be a straightforward block from my ISP (which another customer has already confirmed in a GitHub issue), but I can't rule out some other problem on their part.

At this point, I feel I've exhausted my possibilities. If there's anything more specific that you think I should try, please tell me.

Thanks for your patience, !

I'll raise this internally.