# Socket recv error connection reset by peer (104) **URL:** \ **Category:** zcashd client\ **Created:** [September 19, 2016, 1:28pm UTC](https://forum.zcashcommunity.com/t/socket-recv-error-connection-reset-by-peer-104/1819 "2016-09-19T13:28:09Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![gigirobot](https://sea2.discourse-cdn.com/zcash/user_avatar/forum.zcashcommunity.com/gigirobot/32/486_2.png) [@gigirobot](https://forum.zcashcommunity.com/u/gigirobot)\ **Post date:** [September 19, 2016, 1:28pm UTC](https://forum.zcashcommunity.com/t/socket-recv-error-connection-reset-by-peer-104/1819/1 "2016-09-19T13:28:09Z")
Help me ! I started to mine and for some days all is ok. Now i have some problems and my zcashd is stalled for minutes after “reset by peer” Thank you ---
**Author:** ![iCimo](https://avatars.discourse-cdn.com/v4/letter/i/ecc23a/32.png) [@iCimo](https://forum.zcashcommunity.com/u/iCimo)\ **Post date:** [September 19, 2016, 2:54pm UTC](https://forum.zcashcommunity.com/t/socket-recv-error-connection-reset-by-peer-104/1819/2 "2016-09-19T14:54:14Z")
same issue socket recv error Connection reset by peer (104) Adding fixed seed nodes as DNS doesn’t seem to be available. ---
**Author:** ![Shawn](https://sea2.discourse-cdn.com/zcash/user_avatar/forum.zcashcommunity.com/shawn/32/187_2.png) [@Shawn](https://forum.zcashcommunity.com/u/Shawn)\ **Post date:** [September 19, 2016, 3:13pm UTC](https://forum.zcashcommunity.com/t/socket-recv-error-connection-reset-by-peer-104/1819/3 "2016-09-19T15:13:33Z")
Do you have betatestnet.z.cash or alphatestnet.z.cash in your config? ---
**Author:** ![gigirobot](https://sea2.discourse-cdn.com/zcash/user_avatar/forum.zcashcommunity.com/gigirobot/32/486_2.png) [@gigirobot](https://forum.zcashcommunity.com/u/gigirobot)\ **Post date:** [September 19, 2016, 3:33pm UTC](https://forum.zcashcommunity.com/t/socket-recv-error-connection-reset-by-peer-104/1819/4 "2016-09-19T15:33:31Z")
I have betatestnet.z.cashin my config ---
**Author:** ![iCimo](https://avatars.discourse-cdn.com/v4/letter/i/ecc23a/32.png) [@iCimo](https://forum.zcashcommunity.com/u/iCimo)\ **Post date:** [September 19, 2016, 4:25pm UTC](https://forum.zcashcommunity.com/t/socket-recv-error-connection-reset-by-peer-104/1819/5 "2016-09-19T16:25:52Z")
same addnode=betatestnet.z.cash ---
**Author:** ![gigirobot](https://sea2.discourse-cdn.com/zcash/user_avatar/forum.zcashcommunity.com/gigirobot/32/486_2.png) [@gigirobot](https://forum.zcashcommunity.com/u/gigirobot)\ **Post date:** [September 19, 2016, 5:56pm UTC](https://forum.zcashcommunity.com/t/socket-recv-error-connection-reset-by-peer-104/1819/6 "2016-09-19T17:56:28Z")
Thanks but i already have addnode=betatestnet.z.cash I am a very old programmer and internet engineer and a bit worried about zcache protocol. ---
**Author:** ![gigirobot](https://sea2.discourse-cdn.com/zcash/user_avatar/forum.zcashcommunity.com/gigirobot/32/486_2.png) [@gigirobot](https://forum.zcashcommunity.com/u/gigirobot)\ **Post date:** [September 19, 2016, 5:57pm UTC](https://forum.zcashcommunity.com/t/socket-recv-error-connection-reset-by-peer-104/1819/7 "2016-09-19T17:57:52Z")
The zcash daemon stall for w few minutes and run for a few step ---
**Author:** ![iCimo](https://avatars.discourse-cdn.com/v4/letter/i/ecc23a/32.png) [@iCimo](https://forum.zcashcommunity.com/u/iCimo)\ **Post date:** [September 19, 2016, 11:38pm UTC](https://forum.zcashcommunity.com/t/socket-recv-error-connection-reset-by-peer-104/1819/8 "2016-09-19T23:38:29Z")
same problem in old post with no answer > [@Error message when running zcashd -daemon](https://forum.zcashcommunity.com/t/error-message-when-running-zcashd-daemon/1304): > > They are in debug.log, what’s wrong with my zcash? 2016-08-27 02:00:11 mapWallet.size() = 1 2016-08-27 02:00:11 mapAddressBook.size() = 2 2016-08-27 02:00:11 init message: Loading addresses… 2016-08-27 02:00:11 Loaded 0 addresses from peers.dat 0ms 2016-08-27 02:00:11 dnsseed thread start 2016-08-27 02:00:11 Loading addresses from DNS seeds (could take a while) 2016-08-27 02:00:11 0 addresses found from DNS seeds 2016-08-27 02:00:11 dnsseed thread exit 2016-08-27 02:00:11 net thread st… ---
**Author:** ![iCimo](https://avatars.discourse-cdn.com/v4/letter/i/ecc23a/32.png) [@iCimo](https://forum.zcashcommunity.com/u/iCimo)\ **Post date:** [September 20, 2016, 4:57pm UTC](https://forum.zcashcommunity.com/t/socket-recv-error-connection-reset-by-peer-104/1819/9 "2016-09-20T16:57:22Z")
spending a lot of time to test mining on Google Cloud Computer engine (in state of amazon) i discovered this: 1. after some time minutes/hours the node, is able to connect and start to mine but only one connection even if has a dedicated public ip (probably I have to investigate about subnet visibility, cloud dns, firewall etc.) 2. is possible to force connection by addnode command a) run on a connected node the following command ~/zcash/./src/zcash-cli getpeerinfo obtain something like [ { “id” : 94, “addr” : “104.198.227.8:40816”, “addrlocal” : “138.201.202.001:18233”, “services” : “0000000000000001”, “lastsend” : 1474389736, “lastrecv” : 1474389830, “bytessent” : 2331759, “bytesrecv” : 209877, “conntime” : 1474377850, “timeoffset” : 0, “pingtime” : 0.11944500, “version” : 170002, “subver” : “/Satoshi:1.0.0/”, “inbound” : true, “startingheight” : 32, “banscore” : 0, “synced\_headers” : 6508, “synced\_blocks” : 6508, “inflight” : [ ], “whitelisted” : false }, { “id” : 96, “addr” : “104.198.24.211:40592”, “addrlocal” : “138.201.202.001:18233”, “services” : “0000000000000001”, “lastsend” : 1474389797, “lastrecv” : 1474389830, “bytessent” : 24345, “bytesrecv” : 5438, “conntime” : 1474386916, “timeoffset” : 0, “pingtime” : 0.11699600, “version” : 170002, “subver” : “/Satoshi:1.0.0/”, “inbound” : true, “startingheight” : 6491, “banscore” : 0, “synced\_headers” : 6508, “synced\_blocks” : 6508, “inflight” : [ ], “whitelisted” : false } ] b) use the following command on the unconnected node coping the ip node you obtain from the connected one ~/zcash/./src/zcash-cli addnode “104.198.227.8:40816” “onetry” ~/zcash/./src/zcash-cli addnode “104.198.24.211:40592” “onetry” ---
**Author:** ![gigirobot](https://sea2.discourse-cdn.com/zcash/user_avatar/forum.zcashcommunity.com/gigirobot/32/486_2.png) [@gigirobot](https://forum.zcashcommunity.com/u/gigirobot)\ **Post date:** [September 21, 2016, 3:38pm UTC](https://forum.zcashcommunity.com/t/socket-recv-error-connection-reset-by-peer-104/1819/10 "2016-09-21T15:38:36Z")
What happen to betatestnet.z.cash ? betatestnet.z.cash ip address is 198.199.112.230 and so i addnode=198.199.112.230:18233 to config file to exclude evenctually my dns provider problem. In any case i modify my resolv.conf to public dns servers. Sometimes the connection is ok but many times not and the problem is getting worse. I checked with wireshark and, as i had suspected the TCP connection with the betatestnet.z.cash is reset with a FIN-ACK in response to my SYN. ---
**Author:** ![Sabretooth](https://avatars.discourse-cdn.com/v4/letter/s/838e76/32.png) [@Sabretooth](https://forum.zcashcommunity.com/u/Sabretooth)\ **Post date:** [September 22, 2016, 5:09am UTC](https://forum.zcashcommunity.com/t/socket-recv-error-connection-reset-by-peer-104/1819/11 "2016-09-22T05:09:22Z")
Has anyone found a solution to this problem yet? After having success with numerous builds over the past month, I am having the same issue. Hoping to avoid a fresh install thats all. Any help would be appreciated. I tried the solution listed here, but no luck so far. ---
**Author:** ![gigirobot](https://sea2.discourse-cdn.com/zcash/user_avatar/forum.zcashcommunity.com/gigirobot/32/486_2.png) [@gigirobot](https://forum.zcashcommunity.com/u/gigirobot)\ **Post date:** [September 22, 2016, 7:55am UTC](https://forum.zcashcommunity.com/t/socket-recv-error-connection-reset-by-peer-104/1819/12 "2016-09-22T07:55:46Z")
In my opinion the problem is on betatestnet.z.cash due to overload or some bug in low level socket communication bug. The problem is serious. ---
**Author:** ![dacox](https://avatars.discourse-cdn.com/v4/letter/d/b38774/32.png) [@dacox](https://forum.zcashcommunity.com/u/dacox)\ **Post date:** [September 22, 2016, 4:43pm UTC](https://forum.zcashcommunity.com/t/socket-recv-error-connection-reset-by-peer-104/1819/13 "2016-09-22T16:43:26Z")
I am also experiencing the same bug. I have not been able to sync the blockchain at all with the beta. I was able to follow along the alpha guide and sync fully just a couple of weeks ago. Should I file an issue on Github? My most recent attempt was on a large DigitalOcean droplet - I had port 8333 open just like when running a full bitcoin node. ---
**Author:** ![iCimo](https://avatars.discourse-cdn.com/v4/letter/i/ecc23a/32.png) [@iCimo](https://forum.zcashcommunity.com/u/iCimo)\ **Post date:** [September 22, 2016, 4:47pm UTC](https://forum.zcashcommunity.com/t/socket-recv-error-connection-reset-by-peer-104/1819/14 "2016-09-22T16:47:46Z")
testnet has 18233 port ---
**Author:** ![dacox](https://avatars.discourse-cdn.com/v4/letter/d/b38774/32.png) [@dacox](https://forum.zcashcommunity.com/u/dacox)\ **Post date:** [September 22, 2016, 5:12pm UTC](https://forum.zcashcommunity.com/t/socket-recv-error-connection-reset-by-peer-104/1819/15 "2016-09-22T17:12:44Z")
Thanks iCimo, I’ll try that later today. Is it mandatory to have this port open to sync the Zcash blockchain, or should it be possible without it open? ---
**Author:** ![iCimo](https://avatars.discourse-cdn.com/v4/letter/i/ecc23a/32.png) [@iCimo](https://forum.zcashcommunity.com/u/iCimo)\ **Post date:** [September 22, 2016, 7:32pm UTC](https://forum.zcashcommunity.com/t/socket-recv-error-connection-reset-by-peer-104/1819/16 "2016-09-22T19:32:41Z")
I am not shure i think depend on your UPnP router services, if it do not open the port you are non connected after that wait because the dns discovery seed look like unstable you should force a specific node connection just to start with ~/zcash/./src/zcash-cli addnode “138.201.202.201” “onetry” (it is in my connection peer now!) or add the following line to file zcash.conf here some I took note just in case **testnet=1** **addnode=betatestnet.z.cash** **addnode=138.201.202.201** **#addnode=159.203.96.26** **#addnode=147.90.57.58** **#addnode=176.9.3.148** **#addnode=112.126.95.18** **#addnode=138.68.59.119** **#addnode=142.54.190.234** **#addnode=52.41.64.197** **#addnode=47.90.57.58** **#addnode=159.203.96.26** **#addnode=54.70.106.158** **#addnode=212.47.244.188** **#addnode=210.186.199.53** **#addnode=212.171.81.103** **rpcuser=rpcusername** **rpcpassword=rpcpassword** **gen=1** **genproclimit =4** gud luck ---
**Author:** ![Sabretooth](https://avatars.discourse-cdn.com/v4/letter/s/838e76/32.png) [@Sabretooth](https://forum.zcashcommunity.com/u/Sabretooth)\ **Post date:** [September 23, 2016, 4:07am UTC](https://forum.zcashcommunity.com/t/socket-recv-error-connection-reset-by-peer-104/1819/17 "2016-09-23T04:07:51Z")
iCimo, great thanks worked ---
**Author:** ![str4d](https://sea2.discourse-cdn.com/zcash/user_avatar/forum.zcashcommunity.com/str4d/32/64_2.png) [@str4d](https://forum.zcashcommunity.com/u/str4d)\ **Post date:** [September 23, 2016, 4:19am UTC](https://forum.zcashcommunity.com/t/socket-recv-error-connection-reset-by-peer-104/1819/18 "2016-09-23T04:19:31Z")
The problem is that everyone is connecting to the same node, so it can easily exhaust local connection limits at some times. We have recently fixed the DNS seeding issue however, so once some peers start being classified as “good” (can take a week or two by default to get the right uptime ratios) we should start to see peers being announced through that. ---
**Author:** ![gigirobot](https://sea2.discourse-cdn.com/zcash/user_avatar/forum.zcashcommunity.com/gigirobot/32/486_2.png) [@gigirobot](https://forum.zcashcommunity.com/u/gigirobot)\ **Post date:** [September 23, 2016, 5:43am UTC](https://forum.zcashcommunity.com/t/socket-recv-error-connection-reset-by-peer-104/1819/19 "2016-09-23T05:43:04Z")
Thanks for peer addressee ---
**Author:** ![ageis](https://avatars.discourse-cdn.com/v4/letter/a/9e8a1a/32.png) [@ageis](https://forum.zcashcommunity.com/u/ageis)\ **Post date:** [September 24, 2016, 3:57am UTC](https://forum.zcashcommunity.com/t/socket-recv-error-connection-reset-by-peer-104/1819/20 "2016-09-24T03:57:55Z")
Hi there, I’m from the Zcash team. We harden some of our boxes, including betatestnet.z.cash with a Linux kernel patch called grsecurity. We noticed today that there was some resource overstepping of memory limits that were resulting in connections being reset for a very small fraction of users, which could potentially be the cause of your problem. The issue has since been resolved. Sorry for the inconvenience. [Next page](https://forum.zcashcommunity.com/t/socket-recv-error-connection-reset-by-peer-104/1819.md?page=2)